Coleoptera of the Seychelles Islands (Faunistica)

The Coleoptera of the Seychelles islands Edited by JJustin ustin G Gerlach erlach

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The Coleoptera of the Seychelles islands Edited by Justin Gerlach

Sofia–Moscow 2009

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Seychelles Fauna Monographs The Indian Ocean Biodiversity Assessment 2000-2005 reviewed the biogeography of the Seychelles islands through systematic collecting of all taxonomic groups. Biodiversity collecting for this assessment started in 2000 under a Memorandum of Understanding with the Seychelles government with taxonomic support from 87 expert taxonomists in 20 countries. These taxonomists reported the identification of a large number of previously undescribed species and the material initiated taxonomic revisions of most of the groups concerned. These revisions are being published in widely dispersed academic journals, most of which are not available in Seychelles. The only comprehensive taxonomic treatments available cover dicotyledon plants and vertebrates. The information generated by the project has been collated into a monographic series on the Seychelles fauna. The aim of these monographs is to disseminate taxonomic information in a form that can be easily utilised by future workers in the region and by conservationists and researchers in Seychelles. This high quality biodiversity information is essential for future sustainable biodiversity management. Further details of the Indian Ocean Biodiversity Assessment can be found on the Nature Protection Trust of Seychelles web-site: http://islandbiodiversity.com.

Cover photo:

First published 2009 ISBN 978-954-642-498-3 (paperback) ISBN 978-954-642-499-0 (e-book) Pensoft Series Faunistica No 88 ISSN 1312-0174

© PENSOFT Publishers All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the copyright owner.

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Printed in Bulgaria, August 2009

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Contents Contributors

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Introduction

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History of beetle research in Seychelles

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Classification of Seychelles Coleoptera

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Systematic section

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Water beetles

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Terrestrial beetles

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Red Listing

210

Index

241

Colour plates

261

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The Coleoptera of the Seychelles islands Edited by Justin Gerlach Contributors Juanita A. Forrester – Department of Entomology, 455 Biological Sciences Building, University of Georgia, Athens, Georgia 30602-2603, USA Justin Gerlach – Nature Protection Trust of Seychelles, PO Box 207, Victoria, Mahé, Seychelles Pier Mauro Giachino – Museo Regionale Di Scienze Naturali, Via Giolitti 36, 10123 Torino, Italy Matthew L. Gimmel – Louisiana State University, Baton Rouge, Louisiana, USA Manfred A. Jäch – Natural History Museum, Burgring 7, A-1010 Wien, Austria Wenhua Lu – The Conservation Agency, 6 Swinburne Street, Jamestown, RI 02835, USA Joseph V. McHugh – Department of Entomology, 455 Biological Sciences Building, University of Georgia, Athens, Georgia 30602-2603, USA Michael Madl – Natural History Museum, Burgring 7, A-1010 Wien, Austria Charles W. O’Brien – Center for Biological Control, Florida A&M University, Tallahassee, FL 32307-4100, USA Frank W. Pelsue, Jr. – 1556 Iris Grove Drive, Corona, CA 92881-4049, USA Darren A. Pollock – Department of Biology, Eastern New Mexico University, Portales, NM 88130 USA Floyd W. Shockley – Department of Entomology, 413 Biological Sciences Building, University of Georgia, Athens, Georgia 30602-2603, USA Eduard Vives – Centre Cultural Caixa Terrassa, Rambla d’Egara, 340-08221, Barcelona, Spain Introduction The Seychelles islands comprise 115 islands in the western Indian Ocean. These form two main groups; the northern granitic islands and the southern, coralline islands (Fig. 1-2). The southern islands are less than 10m above sea level, representing raised coral atolls or sand cays. This results in limited habitat variation and correspondingly low species diversity. The granitic islands (Fig. 2) are the remnants of the Seychelles microcontinent which was isolated following the break-up of Gondwanaland 65-100 million years ago. These are high islands reaching 905 metres above sea level. This results in great habitat diversity and high rainfall, contribution to the growth of diverse rain forest habitats. The following account concerns all species of beetle (Coleopteraa) recorded in the islands. The Coleoptera of Seychelles comprise 860 species (506 endemic, 319 indigenous, 35 introduced). The highest level of diversity is found on Mahé (556 species, 343 endemic), Silhouette (468 species, 318 endemic), Praslin (148 species, 106 endemic) and Aldabra (122 species, 40 endemic). Small islands have lower levels of diversity, although some near larger islands may have numerous species (e.g. Long island near Mahe has 64 species, 24 endemic). Low levels of diversity are found on the smaller coral islands (e.g. Desroches 11 species, none endemic, Cosmoledo 12, 1 endemic). The indigenous species are predominantly regional endemics (25% found in the Western Indian Ocean), Asian (21%) or African (19%). Much smaller proportions are more widespread: 9% pantropical and 7% palaeotropical. Only 5% are cosmopolitan or Indo-Pacific in distribution. Distributions are given and the conservation status discussed using the IUCN Red List criteria. Non-native species have not been assessed. Representative species from each of the families recorded in Seychelles are illustrated in Fig. 3-5.

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50E

55E

Denis Bird

granitic islands Remire D'Arros St. Joseph Boudeuse Desnoeufs Alphonse Bijoutier

5S Platte Desroches Poivre Marie Luise Coetivy St. Francois

Aldabra Assumption

Cosmoledo Astove

Providence 10S Farquhar

Fig. 1 The Seychelles islands

55° 30

Aride Curieuse

North

Cousin Cousine

Silhouette

Grande soeur

La Digue Praslin 4° 30

St. Anne Cerf Mahé

Fregate

20km

Fig. 2 The granitic islands

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History of beetle research in Seychelles The first Seychelles beetle to be described was Pulposipes herculeanus Solier, 1848. The origins of this specimen is not known, it was labelled ‘Bengal’. This first species to be described from a specimen definitely colleced in Seychelles was Parastasia coquereli Fairmaire, 1869, based on a specimen collected by Ch. Coquerel between 1848 and 1852. The first significant collections were made by W.L. Abbott in the southern atolls (1890, 1893) and Ch. Alluaud in the granitic islands (1892). Collections were made by A. Voeltzkow’s expedition on Aldabra in 1889 and on Mahé and Silhouette by A. Brauer in 1895-6 who gave particular attention to the beetle fauna. The largest collection of Seychelles species was made by the Percy Sladen Memorial Expeditions of 1905 and 1908-9. Small collections were made by Desmond Vesey-Fitzgerald in 1945 and E.S. Brown in 1952. Large series of beetles were collected in the southern atolls by the Royal Society Expedition of 1967-8. The present publication reviews the historical data on all the Seychelles Coleoptera, with the addition of data from the comprehensive surveys of all islands undertaken as part of the Indian Ocean Biodiversity Assessment 2000-2005.

Classification of Seychelles Coleoptera Order and families are listed in the order of the classification below. For convenience the fauna is divided into two non-phylogenetic sections: water beetles and terrestrial beetles. Water beetle families are marked with an asterisk. ORDER COLEOPTERA Linnaeus, 1758 Suborder ADEPHAGA Schellenberg, 1806 GYRINIDAE Latreille, 1810 NOTERIDAE Thomson, 1860 DYTISCIDAE Leach, 1815 CARABIDAE Latreille, 1802 Suborder POLYPHAGA Emery, 1886 Series STAPHYLINIFORMIA Lameere, 1900 Superfamily HYDROPHILOIDEA Latreille, 1802 HYDROPHILIDAE Latreille, 1802 HISTERIDAE Gyllenhal, 1808 Superfamily STAPHYLINOIDEA Latreille, 1802 HYDRAENIDAE Mulsant, 1844 PTILIIDAE Erichson, 1845 SCYDMAENIDAE Leach, 1815 STAPHYLINIDAE Latreille, 1802 Series SCARABAEIFORMIA Crowson, 1960 Superfamily SCARABAEOIDEA Latreille, 1802 LUCANIDAE Latreille, 1804 SCARABAEIDAE Latreille, 1802 Series ELATERIFORMIA Crowson, 1960 Superfamily SCIRTOIDEA Fleming, 1821 SCIRTIDAE Fleming, 1821 Serfamily BUPRESTOIDEA Leach, 1815 BUPRESTIDAE Leach, 1815

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a

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Fig. 3 Representative species of Seychelles Adephaga, Staphyliformia, Scarabaeiformia and Elateriformi. a) Gyrinidae, b) Noteridae, c) Dytiscidae, d) Carabidae, e) Hydrophilidae, f ) Histeridae, g) Hydraenidae, h) Ptiliidae, i) Scydmaenidae, j) Staphylinidae, k) Lucanidae, l) Scarabaeidae, m) Scirtidae, n) Buprestidae, o) Ptilodactylidae, p) Elmidae, q) Dryopidae, r) Limnichidae, s) Heteroceridae, t) Callirhipidae, u) Throscidae, v) Eucnemidae, w) Elateridae, x) Lampyridae, y) Cantharidae

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Superfamily DRYOPOIDEA Billberg, 1820 PTILODACTYLIDAE Laporte, 1836 Superfamily BYRROIDEA Latreille, 1804 ELMIDAE Curtis, 1830 DRYOPIDAE Billberg, 1820 LIMNICHIDAE Erichson, 1846 HETEROCERIDAE MacLeay, 1825 CALLIRHIPIDAE Emden, 1924 Superfamily ELATEROIDEA Leach, 1815 THROSCIDAE Laporte, 1840 EUCNEMIDAE Eschscholtz, 1829 ELATERIDAE Leach, 1815 LAMPYRIDAE Latreille, 1817 CANTHARIDAE Imhoff, 1856 Series BOSTRICHIOFORMIA Forbes, 1926 Superfamily BOSTRICHOIDEA Latreille, 1802 JACOBSONIIDAE Heller, 1926 DERMESTIDAE Latreiile, 1804 BOSTRICHIDAE Latreille, 1802 ANOBIIDAE Fleming, 1821 Series CUCUJIFORMIA Lameere, 1938 Superfamily LYMEXYLONIODEA Fleming, 1821 LYMEXYLIDAE Fleming, 1821 Superfamily CLEROIDEA Latrielle, 1802 TROGOSSITIDAE Latreille, 1802 CLERIDAE Latreille, 1802 MELYRIDAE Leach, 1815 Superfamily CUCUJOIDEA Latreille, 1802 SPHINDIDAE Jacquelin du Val, 1860 NITIDULIDAE Latreille, 1802 MONOTOMIDAE Laporte, 1840 SILVANIDAE Kirby, 1837 CUCUJIDAE Latreille, 1802 LAEMOPHLOEIDAE Ganglbauer, 1899 PROPALTICIDAE Crowson, 1952 PHALACRIDAE Leach, 1815 CRYPTOPHAGIDAE Kirby, 1837 BOTHRIDERIDAE Erichson, 1845 CERYLONIDAE Billberg, 1820 DISCOLOMATIDAE Horn, 1878 ENDOMYCHIDAE Leach, 1815 COCCINELLIDAE Latreille, 1807 CORYLOPHIDAE LeConte, 1852 LATRIDIIDAE Erichson, 1842 Superfamily TENEBRIONOIDEA Latreille, 1802 MYCETOPHAGIDAE Leach, 1815 CIIDAE Leach in Samouelle, 1819 MYCTERIDAE Blanchard, 1845

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Fig. 4 Representative species of Seychelles Bostrichioformia, Lymexyloniodea, Cleroidea and Cucujodiea. a) Jacobsonidae, b) Dermestidae, c) Bostrichidae, d) Anobiidae, e) Lymexylidae, f ) Trogossitidae, g) Cleridae, h) Melyridae, i) Sphindidae, j) Nitidulidae, k) Monotomidae, l) Silvanidae, m) Cucujidae, n) Laemophloeidae, o) Salpingidae, p) Propalticidae, q) Phalacridae, r) Cryptophagidae, s) Bothrideridae, t) Cerylonidae, u) Discolomatidae, v) Endomychidae, w) Coccinellidae, x) Corylophidae, y) Latridiidae

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MORDELLIDAE Latreille, 1802 COLYDIIDAE Erichson, 1842 MONOMMATIDAE Blanchard, 1845 TENEBRIONIDAE Latreille, 1802 OEDEMERIDAE Latreille, 1810 PYROCHROIDAE Latreille, 1807 ANTHICIDAE Latreille, 1819 ADERIDAE Winkler, 1927 Superfamily CHRYSOMELOIDEA Latreille, 1802 CERAMBYCIDAE Latreille, 1802 CHRYSOMELIDAE Latreille, 1802 Superfamily CURCULIONOIDEA Latreille, 1802 ANTHRIBIDAE Billberg, 1820 ATTELABIDAE Billberg, 1820 BRENTIDAE Billberg, 1820 CURCULIONIDAE Latreille, 1802 a

g

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Fig. 5 Representative species of Seychelles Tenebrionoidea, Chrysomeloidea and Curculionoidea. a) Mycetophagidae, b) Ciidae, c) Mycteridae, d) Mordellidae, e) Colydiidae, f ) Monommatidae, g) Tenebrionidae, h) Oedemridae, i) Pyrochroidae, j) Anthicidae, k) Aderidae, l) Cerambycidae, m) Chrysomelidae, n) Anthribidae, o) Attelabidae, p) Brentidae, q) Curculionidae

11 1. WATER BEETLES OF SEYCHELLES (COLEOPTERA)

M.A. Jäch & M. Madl This chapter is dedicated to our friend and colleague Stefan Schödl († 2005), who was supposed to publish this contribution together with us. Stefan successfully explored the water beetle fauna of the Seychelles in 1996 when he collected for instance the holotype of Scirtes flavohumeralis Ruta, 2008. Stefan’s early death has left a big gap in water beetle research. Introduction Ecologically, water beetles are most diverse. They can live in almost all kinds of aquatic habitats, such as rivers, springs, lakes, ditches, puddles, phytotelmata, seepages, ground water, etc. However, they do not inhabit the oceans, although some species dwell at sea shores in the intertidal zone. Six ecological groups of water beetles were defined by Jäch (1998): 1) 2) 3) 4) 5)

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“True Water Beetles” (at least partly submerged for most of the time in the adult stage). “False Water Beetles” (submerged for most of the time in the larval stage; adults terrestrial). “Phytophilous Water Beetles” (living and feeding on water plants (mono- or oligophagous), submerged for at least some time in any developmental stage). “Parasitic Water Beetles” (like Phytophilous Water Beetles, but their hosts are aquatic mammals). “Facultative Water Beetles” (actively submerged (occasionally or regularly) or actively dwelling on the water surface (occasionally or regularly) for a limited period of time, e.g. while hunting, feeding, seeking refuge, etc. during any of their developmental stages in at least one population). “Shore Beetles” (riparian, living close to the water’s edge during all their developmental stages, not entering water voluntarily or actively, they may get submerged regularly or irregularly during spates or tides).

According to Jäch & Balke (2008), True Water Beetles, False Water Beetles, and Phytophilous Water Beetles are considered as “aquatic” in the strict sense whereas Facultative Water Beetles, Parasitic Water Beetles, and Shore Beetles are termed “paraquatic”. Water beetles do not form a phylogenetic unit. In fact, aquatic and paraquatic representatives are found in at least 50 different families of Coleoptera. In Seychelles, nine beetle families are known to include aquatic/paraquatic representatives: Dytiscidae, Elmidae, Gyrinidae, Heteroceridae, Hydraenidae, Hydrophilidae, Limnichidae, Noteridae, and Scirtidae. All Seychellois members of these nine families, including all terrestrial ones, are treated in this chapter. The dryopoid family Ptilodactylidae includes several False Water Beetles. However, the single ptilodactylid species known from Seychelles, Ptilodactyla scabrosa Champion, 1924, is most probably fully terrestrial and thus not listed herein. This species is endemic to the Inner Seychelles (Mahé, Silhouette). Several species of the genus Laius Guérin-Méneville (Malachiidae) are known to live on marine shores (Jäch 1998). However, nothing is known about the habitat of Laius sericatus Champion, 1924, endemic to the Inner Seychelles (Félicité). This species is thus not included in the present compilation.

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Table 1: Checklist of the water beetles of Seychelles, including ecological and distributional data. Abbreviations: A (Aldabra Group), Af (Afrotropical, incl. Malagasy Subregion), Au (Australian), C (Coëtivy), COS (Cosmopolitan), E (endemic), F (Farquhar), FAC (Facultative Water Beetle), FWB (False Water Beetle), H (hygrophyllic), HP (hygropetric), I (intertidal), IS (Inner Seychelles), M (Malagasy Subregion), O (Oriental), OS (Outer Seychelles), P (Palearctic), PH (Phytotelmata), R (Running Water), S (Stagnant Water), SB (Shore Beetle), TB (Terrestrial Beetle), TWB (True Water Beetle). Bold characters indicate Seychellois endemics Ecology Family DYTISCIDAE Copelatus aldabricus Balfour-Browne, 1950 Copelatus gardineri Scott, 1912 Copelatus pandanorum Scott, 1912 Cybister tripunctatus ssp. africanus Laporte, 1835 Eretes griseus (Fabricius, 1781) Hydaticus servillianus Aubé, 1838 Hydroglyphus capitatus (Régimbart, 1895) Hydroglyphus farquharensis (Scott, 1912) Hydrovatus acuminatus Motschulsky, 1859 Hyphydrus impressus Klug, 1833 Laccophilus addendus Sharp, 1882 Laccophilus posticus Aubé, 1838 Uvarus rivulorum (Régimbart, 1895) Uvarus sechellensis (Régimbart, 1897) ELMIDAE Microlara mahensis Jäch, 1993 GYRINIDAE Dineutus subspinosus (Klug, 1834) HETEROCERIDAE Heterocerus vulpes Grouvelle, 1906 HYDRAENIDAE Hydraena mahensis Scott, 1913 HYDROPHILIDAE Berosus bergrothi Régimbart, 1900 Berosus bidenticulatus Mulsant & Rey, 1859 Berosus cuspidatus Erichson, 1843 Berosus inermis Fairmaire, 1896 Berosus nudicollis Schödl, 1994 Bourdonnaisia mahensis Scott, 1913 Bourdonnaisia silhouettae Scott, 1913 Cercyon conjiciens (Walker, 1858) Cercyon fructicola Scott, 1913 Cercyon laticollis Régimbart, 1903 Cercyon nigriceps (Marsham, 1802) Chasmogenus mollis (Régimbart, 1903) Coelostoma punctulatum (Klug, 1833) Coelostoma rusticum Mouchamps, 1958 Dactylosternum abdominale (Fabricius, 1792) Dactylosternum pygmaeum Régimbart, 1903 Enochrus natalensis (Gemminger & Harold, 1868) Helochares nigrifrons Brancsik, 1893 Helochares sechellensis Régimbart, 1903 Paracymus alluaudianus Scott, 1913

IS

Distribution OS global

TWB/S TWB/R,S TWB/PH TWB/S TWB/S TWB/S TWB/S TWB/S TWB/S TWB/S TWB/S TWB/S TWB/S TWB/S

A

IS

M E E Af Af, Au, O, P Af M Af Af, O, P Af Af M M Af

TWB/R

IS

E

TWB/S

IS

Af

IS IS IS IS

SB TWB/HP,R,S TWB/S TWB/S TWB/S TWB/S TWB/S TWB/H TWB/H TB TB TB TB TWB/S TWB?/S? TWB?/S? TB TB TWB/S TWB/S TWB/S TWB/S

A A C A F A A A A A

A IS

E A A A A A

IS IS IS IS IS IS IS IS IS IS IS IS IS

Af

A A A C A C

M Af Af, P M M E E M, O M M COS M M Af COS M, O Af, Au, O, P M E ?E

13 Paromicrus atomus Scott, 1913 TB Paromicrus carinatus Scott, 1913 TB, ?FAC Paromicrus thomasseti Scott, 1913 TB, ?FAC TB Paroosternum degayanum Scott, 1913 Regimbartia inflata (Brullé, 1835) TWB/S LIMNICHIDAE Hyphalus crowsoni Hernando & Ribera, 2000 SB/I Hyphalus madli Hernando & Ribera, 2004 SB/I NOTERIDAE Canthydrus notula (Erichson, 1843) TWB/S Neohydrocoptus subvittulus seychellensis (Pederzani &TWB/S Sanfilippo, 1978) SCIRTIDAE FWB/?PH,?R,?S Cyphon biperforatus Champion, 1924 Cyphon insularius Champion, 1924 FWB/S,?PH,?R Cyphon mahensis Champion, 1924 FWB/?PH,?R,?S Scirtes confinis Ruta, 2008 FWB/?PH,?R,?S Scirtes flavohumeralis Ruta, 2008 FWB/S Scirtes mahensis Ruta, 2008 FWB/?S Scirtes seychellensis Champion, 1924 FWB/S,?PH,?R

IS IS IS IS A

E E E M, O M

A

E E

A IS

Af, P E

IS IS IS IS IS IS IS

E E E E E E E

IS

Key to families (adults) (modified after Jäch & Balke 1998, and Balke, Jäch & Hendrich 2004 see http://www.wasserkaefer.de/Malaysia/Balke%20et%20al%20Malaysia%20Book.pdf ). Scirtidae are completely terrestrial in the adult stage and are therefore not included in this key. 1 Middle and hind legs strongly modified (short and flat, oar-like), much shorter than forelegs. Head with two pairs of well developed eyes, one on dorsal side and one on ventral side. GYRINIDAE 2 Fore and middle legs never oar-like. Head with only one pair of eyes. 2 Dorsal surface of body more or less glabrous, only very sparsely pubescent. 3 Dorsal surface of body more or less densely pubescent. 6 3 Underside of body glabrous. Maxillary palpi short, inconspicuous. Antennae simple, more 4 or less filiform. Underside of body largely pubescent. Maxillary palpi long, protruding. Antennae with 5 pubescent club. 4 Metacoxal process conspicuously elevated. NOTERIDAE Metacoxal process – if present – never conspicuously elevated. DYTISCIDAE 5 Pronotum more or less heart-shaped. Pubescent antennal club with five antennomeres. HYDRAENIDAE Pronotum never heart-shaped. Pubescent antennal club with three antennomeres. HYDROPHILIDAE 6 Body length: ca. 3-4 mm. Elytra vividly bicoloured, yellow and brown. Front tibiae strongly toothed. HETEROCERIDAE 7 Body length: ca. 1.0-2.8 mm. Elytra unicoloured, dark. Front tibiae not toothed. 7 Body length: ca. 2.6-2.8 mm. Antennomeres 1+2 forming a distinct shaft. ELMIDAE LIMNICHIDAE Body length: 1.0-1.3 mm. Antennae without distinct basal shaft. Family DYTISCIDAE The Afrotropical Rhantaticus congestus (Klug, 1832) was recorded from the Seychelles by Wewalka (1980: 724). However, this record is based on an error (G. Wewalka, pers. comm.).

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Copelatus aldabricus Balfour-Browne, 1950 (Plate 1) Copelatus pulchellus (Klug, 1834): Régimbart 1900: 50 (tax., distr.); Kolbe 1902: 574 (distr.); Voeltzkow 1902: 558 (cat.); Scott 1912: 260 (tax., distr.); Peschet 1917: 33 (cat.); Zimmermann 1920: 142 (cat.) Copelatus aldabricus Balfour-Browne 1950: 365 (cat.), 368 (descr.), 370 (figs. 5, 6); Guéorguiev 1968: 19 (tax., cat.); Guignot 1961: 705 (cat.), 709 (fig. 615), 710 (descr.) Copelatus aldabricus Balfour-Browne, 1950: Nilsson, Billardo & Rocchi 1997: 22 (fig. 9), 33 (cat.) Copelatus (Copelatus) aldabricus Balfour-Browne, 1950: Nilsson 2001: 67 (cat.); Bameul 1984: 95 (distr.) Distribution: Endemic to the Malagasy Subregion. Recorded also from the Comoros, Madagascar and Réunion. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Copelatus gardineri Scott, 1912 (Plate 1) Copelatus gardineri Scott 1912: 257 (descr., biol.); Scott 1913: 196; Zimmermann 1920: 139 (cat.); Scott 1933: 341 (biol.); Guéorguiev 1968: 33 (tax., cat.), 35 (key); Guignot 1961: 741 (key), 742 (descr.); Pederzani & Sanfilippo 1978: 239 (cat.), 240 (tax., distr.), 241 (figs. 8-10); Marlier 1979: 53 (distr.); Starmühlner 1979: 641 (biol., distr.), 701, 703; Nilsson, Billardo & Rocchi 1997: 29 (fig. 16), 35 (cat.); Gerlach, Matyot & Saaristo 1997: 31 (cat.); Gerlach 2003b: 18 (distr.) Copelatus (Pelocatus) Gardineri Scott, 1912: Peschet 1917: 27 (key), 28 (tax.) Copelatus (Liopterus) Gardineri Scott, 1912: Zimmermann 1919: 198 (cat.) Copelatus gardineri Scott, 1913 (!): Wewalka 1980: 723 (cat.), 724 (distr.) Copelatus (Copelatus) gardineri Scott, 1912: Nilsson 2001: 67 (cat.) Distribution: Endemic to the Inner Seychelles: Cousin: first record, Denis: first record, La Digue (La Reunion): first record, Mahé (Anse Nord-D’Est, Beau Vallon, Mare aux Cochons, Morne Blanc, Morne Seychellois), Praslin (Anse Lazio, Cap Samy), Silhouette (Grande Barbe, Mare aux Cochons). Habitat: Stagnant water, especially in small pools near running water, and occasionally also in slowly running water with sandy bottom. Copelatus pandanorum Scott, 1912 Copelatus sp.: Scott 1910: 25 (biol.) Copelatus pandanorum Scott 1912: 258 (descr., biol., distr.), pl. 12 (fig. 16); Zimmermann 1920: 141 (cat.); Scott 1933: 340 (biol.), 341; Guéorguiev 1968: 26 (tax., cat.), 27 (key); Guignot 1961: 728 (key), 729 (descr.); Pederzani & Sanfilippo 1978: 239 (cat.); Marlier 1979: 52 (biol., distr.); Wewalka 1980: 723 (cat.); Nilsson, Billardo & Rocchi 1997: 34 (cat.); Gerlach, Matyot & Saaristo 1997: 31 (cat.) Copelatus (Copelatus) pandanorum Scott, 1912: Peschet 1917: 28 (key), 33 (cat., biol.); Zimmermann 1919: 201 (cat.); Nilsson 2001: 67 (cat.) Distribution: Endemic to the Inner Seychelles: Mahé (Morne Blanc), Praslin (Côtes d’Or Estate), Silhouette (Mare aux Cochons). Habitat: Phytotelmata (water-filled leaf bases of Pandanus hornei and P. sechellarum). Cybister tripunctatus africanus Laporte, 1835 (Plate 1) Cybister tripunctatus Olivier, 1795: Linell 1897: 699 (distr.); Régimbart 1900: 50 (cat.); Kolbe 1902: 573 (distr.); Voeltzkow 1902: 558 (cat.); Scott 1912: 261 (tax., distr.) Cybister tripunctatus var. cinctus Sharp, 1882: Alluaud 1900: 72 (tax., cat.)

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Cybister tripunctatus africanus Laporte de Castelnau, 1840: Kolbe 1902: 572 (distr.) Cybister tripunctatus aldabricus Kolbe 1902: 572 (descr.); Voeltzkow 1902: 558 (cat.) Cybisteter [sic] tripunctatus Olivier, 1795: Peschet 1917: 38 (tax.) Cybister tripunctatus var. aldabricus Kolbe, 1902: Zimmermann 1920: 266 (cat.) Cybister tripunctatus Olivier, 1795: Guignot 1961: 910-914 (key, descr.) Cybister tripunctatus africanus Castelnau, 1834: Guignot 1961: 910 (key), 911 (fig. 813), 912 (descr.) Cybister (Cybister) tripunctatus africanus Laporte, 1835: Nilsson 2001: 90 (cat.) Cybister (Gschwendtnerhydrus) tripunctatus africanus Laporte de Castelnau, 1835: Bameul 1984: 97 (distr.) Distribution: Known from the Palearctic and Afrotropical Regions. In the Malagasy Subregion recorded also from the Comoros (Mayotte). Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Eretes griseus (Fabricius, 1781) (Plate 1) Dytiscus griseus Fabricius 1781: 293 (descr.) Eretes griseus (Fabricius, 1781): Miller 2002: 263 (distr.) Eretes sticticus (Linné, 1767): Linell 1897: 698 (distr.); Régimbart 1900: 50 (cat.); Kolbe 1902: 573 (distr.); Voeltzkow 1902: 558 (cat.); Scott 1912: 261 (tax., distr.); Peschet 1917: 37 (descr.); Zimmermann 1920: 216 (cat.); Guignot 1961: 774 (descr.), 775 (fig. 671) Distribution: Known from the southern Palearctic, the Afrotropical Region, the Oriental Region, and the northern tip of Australia. Specimens recorded from Mauritius under the name Eretes sticticus (e.g. by Peschet 1917) might also belong to E. griseus. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Hydaticus servillianus Aubé, 1838 (Plate 1) Hydaticus leander (Rossi, 1790): Régimbart 1895: 196 (descr., distr.); Alluaud 1897: 213 (cat.); Kolbe 1910: 19 (cat.); Scott 1912: 260 (tax., distr.); Peschet 1917: 44 (key), 45 (tax.); Marlier 1979: 53 (distr.) Hydaticus servillianus Aubé, 1838: Pederzani & Sanfilippo 1978: 239 (cat.); Wewalka 1980: 723 (cat.) Hydaticus (Guignotites) servillianus Aubé, 1838: Nilsson 2001: 105 (cat.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion recorded also from Madagascar. Inner Seychelles: La Digue, Mahé (Anse aux Pins, Anse Nord-D’Est), Silhouette: first record (Grande Barbe). Outer Seychelles: Coëtivy. Habitat: Stagnant water. Hydroglyphus capitatus (Régimbart, 1895) Bidessus capitatus Régimbart, 1895: Scott 1912: 254 (descr., distr.), pl. 12 (fig. 14); Peschet 1917: 4 (key), 5 (descr.) Bidessus (Bidessus) capitatus Régimbart, 1895: Zimmermann 1920: 49 (cat.) Guignotus capitatus (Régimbart, 1895): Guignot 1946: 245 (tax.); Guignot 1959a: 285 (fig. 274), 290 (key), 291 (descr.); Pederzani 1982: 139 (distr., tax.), 141 (Figs. 5-8) Hydroglyphus capitatus (Régimbart, 1895): Biström 1988: 12 (cat.); Nilsson 2001: 121 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water.

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Hydroglyphus farquharensis (Scott, 1912) (Plate 1) Bidessus farquharensis Scott 1912: 255 (descr.), pl. 12 (fig. 15); Peschet 1917: 4 (key), 8 (tax.) Bidessus (Bidessus) farquharensis Scott, 1912: Zimmermann 1920: 51 (cat.) Guignotus farquharensis (Scott, 1912): Guignot 1946: 238 (key), 1959a: 276 (key), 282 (descr.); Biström 1988: 12 (cat.) Hydroglyphus farquharensis (Régimbart, 1895): Nilsson 2001: 122 Distribution: Known from the Afrotropical Region. Outer Seychelles: Farquhar Group: Farquhar. Habitat: Stagnant water. Hydrovatus acuminatus Motschulsky, 1859 (Plate 1) Hydrovatus humilis Sharp, 1882: Scott 1912: 253 (tax., distr.); Pederzani & Sanfilippo 1978: 239 (cat.); Wewalka 1980: 723 (cat.) Hydrovatus sordidus var. humilis Sharp, 1882: Peschet 1917: 15 (tax.); Zimmermann 1920: 36 (cat.) Hydrovatus (Vathydrus) humilis Sharp, 1882: Guignot 1959a: 125 (key), 129 (descr.), 132 (fig. 100) Hydrovatus acuminatus Motschulsky, 1859: Biström 1997: 351 (descr., distr.), 356 (figs. 747-754), 358 (fig. 755: map), 556 (cat.) Distribution: Known from the Palearctic, Afrotropical and Oriental Regions. In the Malagasy Subregion recorded also from the Comoros, Madagascar and Mauritius. Inner Seychelles (first confirmed record): Mahé (Port Launay), Praslin (Cap Samy). Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Hyphydrus impressus Klug, 1833 (Plate 1) Hyphydrus impressus Klug, 1833: Régimbart 1900: 49 (distr.); Kolbe 1902: 574 (distr.); Voeltzkow 1902: 558 (cat.); Scott 1912: 257 (tax., distr.); Peschet 1917: 15 (key, descr.), 16 (fig. 3); Zimmermann 1920: 41 (cat.); Biström 1982: 7, 11 (fig. 6m), 107 (descr.), 109 (fig. 106a–e) Hyphydrus (Aulacodytes) impressus Klug, 1833: Guignot 1959a: 77 (key, figs. 45, 46), 78 (descr.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion also recorded from Madagascar, Réunion and Mauritius. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Laccophilus addendus Sharp, 1882 (Plate 1) Laccophilus addendus Sharp, 1882: Voeltzkow 1902: 558 (cat.); Scott 1912: 253 (cat.); Bameul 1984: 89 (fig. 5), 95 (distr.); Guignot 1959b: 570 (key), 573 (fig. 521), 576 (descr.) Laccophilus addendus var. geminatus Régimbart, 1895: Régimbart 1900: 49 (distr.); Peschet 1917: 24 (key), 25 (descr.) Laccophilus addendus geminatus Régimbart, 1895: Kolbe 1902: 573 (distr.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion also recorded from Madagascar and Rodrigues. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water.

17

Laccophilus posticus Aubé, 1838 Laccophilus posticus Aubé, 1838: Régimbart 1900: 50 (distr.); Kolbe 1902: 573 (distr.); Voeltzkow 1902: 558 (cat.); Scott 1912: 253 (tax., distr.); Peschet 1917: 23 (key), 24 (descr.); Zimmermann 1920: 24 (cat.); Guignot 1959b: 570 (key), 572 (descr.), 573 (fig. 516); Bameul 1984: 94 (distr.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar and Mauritius. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Uvarus rivulorum (Régimbart, 1895) (Plate 1) Bidessus rivulorum Régimbart 1895: 84 (descr.) Bidessus sp.: Scott 1912: 256 (descr., distr.); Peschet 1917: 13 (distr.) Uvarus rivulorum (Régimbart, 1895): Nilsson 2001: 139 Distribution: Endemic to the Malagasy Subregion. Recorded so far only from Madagascar. Outer Seychelles (first record): Aldabra Group: Aldabra. Habitat: Stagnant water. Uvarus sechellensis (Régimbart, 1897) (Plate 1) Bidessus sechellensis Régimbart 1897: 208 (descr.); Alluaud 1897: 211 (cat.); Peschet 1917: 5 (key), 12 (descr.); Marlier 1979: 53 (distr.) Bidessus peringueyi Régimbart, 1895: Régimbart 1906: 244 (syn.); Scott 1912: 256 (tax.) Bidessus (Bidessus) peringueyi var. sechellensis Régimbart, 1897: Zimmermann 1920: 56 (cat.) Amarodytes (Uvarus) sechellensis (Régimbart, 1897): Guignot 1946: 248 (key), 249 (distr.) Uvarus sechellensis (Régimbart, 1897): Guignot 1959a: 295 (key), 297 (descr.), 308 (fig. 279); Pederzani & Sanfilippo 1978: 239 (cat.), 240 (distr.); Wewalka 1980: 723 (cat.); Biström 1988: 10 (cat.) Distribution: Known from the Afrotropical Region. Inner Seychelles: La Digue (La Reunion), Mahé (Marlier 1979), Praslin (Cap Samy), Silhouette: first record (Anse Lascars). Habitat: Stagnant water. Key to Dytiscidae (adults) Species recorded from the Inner Seychelles. 2 Species recorded from the Outer Seychelles. 6 2 Body length: ca. 10 mm. Hydaticus servillianus 3 Body length: ca. 1.4-5.5 mm. 3 Body length: ca. 4.7-5.5 mm. Scutellum not concealed, visible in dorsal view. 4 Body length: ca. 1.4-2.7 mm. Scutellum concealed, not seen without dissection. 5 4 Elytra brown with transverse yellowish basal band and with yellowish subapical spots, without distinct striae. Copelatus gardineri Elytra unicoloured brown, with six striae. Copelatus pandanorum 5 Body length: ca. 2.1-2.7 mm. Body form almost globular. Hydrovatus acuminatus Uvarus sechellensis Body length: ca. 1.4-1.7 mm. Body form elongate. 6 Scutellum not concealed, visible in dorsal view. 7 Scutellum concealed, not seen without dissection. 10 Body length: ca. 5-6 mm. Eyes in anterior view laterally emarginate. 7 Copelatus aldabricus 8 Body length: ca. 10-30 mm. Eyes in anterior view laterally not emarginate. 1

18 8

9

10

11 12 13

14

Body length: 25-30 mm. Elytra black, with yellowish margin. Cybister tripunctatus ssp. africanus 9 Body length: 10-15 mm. Elytra yellowish, more or less densely speckled. Body length: ca. 10 mm. Eyes not protruding. Elytral apices not acuminate. Hydaticus servillianus Body length: ca. 10-15 mm. Eyes very large and protruding. Elytral apices acuminate, forming small denticles. Eretes griseus Fore- and middle tarsus with five distinct joints. Hind tarsomeres 1-4 with distinct apical lobes. Laccophilus addendus and L. posticus (these two species can be distinguished by the shape of the penis – see Guignot 1959b: figs. 516, 521) Fore- and middle tarsus appearing four-segmented (fourth joint small, concealed by third 11 joint). Hind tarsomeres 1-4 without distinct apical lobes. Body length: ca. 2-4 mm. Body form almost globular. 12 Body length: 1.5-2.3 mm. Body form elongate, subparallel. 13 Body length: ca. 2.1-2.7 mm. Elytra unicoloured. Hydrovatus acuminatus Hyphydrus impressus Body length: ca. 3-4 mm. Elytra with distinct colour pattern. Dorsal surface yellowish, with dark markings, head and pronotum basally distinctly 14 darkened. Dorsal surface more or less unicoloured, head and pronotum not darkened basally. Uvarus rivulorum Species found on Farquhar. Apex of penis wide, subtruncate (ventral or dorsal view). Hydroglyphus farquharensis Species found on Aldabra. Apex of penis acuminate (ventral or dorsal view). Hydroglyphus capitatus Family ELMIDAE

Microlara mahensis Jäch, 1993 (Plate 2) Microlara mahensis Jäch 1993: 15 (typ. gen., descr.), 16 (fig. 1), 17 (figs. 2-4); Gerlach 2003b: 19 (distr.) Distribution: Endemic to the Inner Seychelles: Mahé (Rivière du Cap, Congo Rouge, Casse Dent, La Reserve/Brulée). Habitat: Running water. Family GYRINIDAE Dineutus subspinosus (Klug, 1834) (Plate 1) Dineutus (Spinosodineutus) subspinosus (Klug, 1834): Gerlach 2003b: 18 (distr.) Dineutus subspinosus (Klug, 1834): Vinson 1967: 315 (cat.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion recorded also from the Comoros (Moheli), Madagascar, Réunion and Mauritius. Inner Seychelles: Mahé (Mare aux Cochons). Habitat: Stagnant water.

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Family HETEROCERIDAE Heterocerus vulpes Grouvelle, 1906 (Plate 2) Heterocerus vulpes Grouvelle, 1906: Grouvelle 1913: 116 (distr.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion also recorded from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Fresh water shores. Family HYDRAENIDAE Hydraena (Hydraenopsis) mahensis Scott, 1913 (Plate 2) Hydraena (Hydraena) mahensis Scott 1913: 194 (cat.), 196 (descr.); Knisch 1924: 39 (cat.); Hansen 1998: 49 (cat.) Hydraena mahensis Scott, 1913: Marlier 1979: 53 (distr.) Hydraena (Hydraenopsis) mahensis Scott, 1913: Jäch, Beutel, Díaz & Kodada 2000: 116 (cat.) Distribution: Endemic to the Inner Seychelles: Mahé (Anse aux Pins, Anse Royal, Grand St. Louis River, Sans Souci), Silhouette: first record (Jardin Marron). Habitat: On Mahé this species was collected in running and stagnant water from the coast up to more than 600 m. A single female, very probably belonging to this species, was collected in 2007 by G. Wewalka at Jardin Marron (Silhouette) on a hygropetric rockface at about 400 m. Family HYDROPHILIDAE The Afrotropical Cercyon hova Régimbart, 1903 was recorded from the Seychelles by Bameul (1986: 888) and Hebauer (2003b: 17). However, this record is based on a data base error (F. Bameul, email of 5.XII.2007). Two species of Helochares Mulsant were erroneously recorded from the Seychelles: the West and Central African H. crenatostriatus Régimbart, 1903 (Hansen 1999b: 166), and the West African H. melanophthalmus Mulsant, 1844 (Hebauer 1996: 26; 2003a: 67). These records are based on confusion with H. nigrifrons (Régimbart 1903: 28; Scott 1913: 203). The taxonomy of three hydrophilid genera, Cercyon Leach, Coelostoma Brullé, and Dactylosternum Wollaston, is still unrevised. The records of the species listed herein were taken from the literature – some of these names still need to be confirmed. Berosus (Berosus) bergrothi Régimbart, 1900 Berosus bergrothi Régimbart 1900: 51 (descr.); Alluaud 1900: 229 (cat.); Kolbe 1902: 574 (tax., distr.); Voeltzkow 1902: 558 (cat.); Knisch 1924: 268 (cat.); Orchymont 1947: 735 (key) Berosus (Berosus) bergrothi Régimbart, 1900: Scott 1913: 194 (checklist), 200 (tax., distr.); Orchymont 1941: 15 (cat.); Schödl 1994b: 211 (cat.), 213 (key), 215 (descr., distr.), 237 (fig. 7a, b), 240 (fig. 27), 242 (fig. 44: map); Hansen 1999b: 84 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Outer Seychelles: Aldabra Group: Aldabra, Astove. Habitat: Stagnant water.

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Berosus (Berosus) nudicollis Schödl, 1994 Berosus (Berosus) nudicollis Schödl 1994b: 211 (cat.), 213 (key), 227 (descr.), 237 (fig. 6a, b), 240 (fig. 30), 242 (fig. 44: map); Hansen 1999b: 91 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Berosus (Enoplurus) bidenticulatus Mulsant & Rey, 1859 Berosus (Enoplurus) prolongatus Fairmaire, 1868: Scott 1913: 194 (checklist), 199 (descr., distr.) Berosus (Enoplurus) bidenticulatus Mulsant & Rey, 1859: Knisch 1924: 262 (cat.); Orchymont 1941: 15 (tax.); Hansen 1999b: 74 (cat.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion also recorded from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Berosus (Enoplurus) cuspidatus Erichson, 1843 (Plate 2) Berosus (Enoplurus) acutispina Fairmaire, 1868: Scott 1913: 194 (checklist), 196, 198 (tax., distr.) Berosus (Enoplurus) cuspidatus Erichson, 1843: Knisch 1924: 263 (cat.); Orchymont 1941: 15 (tax.); Balfour-Browne 1952: 136 (figs. 10-12), 137 (tax.); Hansen 1999b: 75 (cat.) Distribution: Known from the Palearctic and Afrotropical Regions. In the Malagasy Subregion also recorded from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Berosus (Enoplurus) inermis Fairmaire, 1896 Berosus (Enoplurus) inermis Fairmaire, 1896: Schödl 1994a: 142 (cat.), 145 (key), 157 (descr., distr.), 173 (fig. 8a, b), 179 (fig. 37), 181 (fig. 78), 184 (fig. 82: map); Hansen 1999b: 78 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Bourdonnaisia mahensis Scott, 1913 (Plate 2) Bourdonnaisia mahensis: Scott 1913: 194 (checklist), 215 (typ. gen., descr., biol.), pl. 14 (fig. 12); Knisch 1924: 115 (cat.); Scott 1926: 4 (tax.); Scott 1933: 329 (biol.), 343; Hansen 1991: 207 (descr.); Hansen 1999b: 253 (cat.) Distribution: Endemic to the Inner Seychelles: Mahé (Morne Pilot, Morne Seychellois, forest above Cascade Estate, Mare aux Cochons). Habitat: Damp forest floor on wet mountain peaks, in slimy moisture film on big smooth leathery leaves of Northea seychellarum. All specimens were collected at elevations between 600-730 m (Scott 1913). Bourdonnaisia silhouettae Scott, 1913 (Plate 2) Bourdonnaisia silhouettae Scott 1913: 194 (checklist), 215 (biol.), 216 (descr.); Knisch 1924: 115 (cat.); Scott 1926: 4 (tax.); Scott 1933: 329 (biol.), 343; Gerlach, Matyot & Saaristo 1997: 31 (cat.); Hansen 1999b: 253 (cat.); Gerlach 2003a: 33 (distr.)

21

Distribution: Endemic to the Inner Seychelles: Mahé: first record (Morne Blanc), Silhouette (Mont Dauban, Jardin Marron ridge). Habitat: Leaf litter in saturated mist forest. The beetles were found in a water film trapped between leaves (J. Gerlach, pers. comm.). All specimens were collected between 600-670 m. Cercyon conjiciens (Walker, 1858) (Plate 2) Cercyon uniformis Sharp, 1890: Scott 1913: 194 (checklist), 195, 219 (biol., distr.); Gerlach, Matyot & Saaristo 1997: 31 (cat.) Cercyon (Cercyon) uniformis Sharp, 1890: Knisch 1924: 149 (cat.) Cercyon (Clinocercyon) conjiciens (Walker, 1858): Balfour-Browne 1954: 231 (tax.); Hansen 1999b: 295 (cat.); Hebauer 2003b: 17 (cat.), 19 (key) Distribution: Known from the Oriental Region and the Seychelles. Inner Seychelles: Mahé (Morne Blanc, Port Glaud, Cascade Estate, Mare aux Cochons), Silhouette (Mont Pot-à-eau, Mare aux Cochons). Habitat: Terrestrial – often found in decaying plant material, e.g. rotting fruits (orange, Pandanus sechellarum, jackfruit); forest (150-600 m). Cercyon fructicola Scott, 1913 (Plate 2) Cercyon fructicola Scott 1913: 194 (checklist), 195, 217 (descr., biol.); Gerlach, Matyot & Saaristo 1997: 31 (cat.) Cercyon (Cercyon) fructicola Scott, 1913: Knisch 1924: 149 (cat.) Cercyon (Clinocercyon) fructicola Scott, 1913: Bameul 1986: 889 (tax.); Hansen 1999b: 295 (cat.); Hebauer 2003b: 14 (descr.), 17 (cat.), 19 (key) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar, Réunion and Mauritius. Inner Seychelles: Mahé (Morne Blanc, Cascade Estate, Mare aux Cochons), Praslin (Côtes d’Or Estate), Silhouette (Mont Pot-à-eau, Mare aux Cochons). Habitat: Terrestrial – often found in decaying plant material, e.g. rotting fruits; principally in damp mountain forest, 300-600 m. Cercyon laticollis Régimbart, 1903 Cercyon laticollis Régimbart, 1903: Scott 1913: 194 (checklist), 195, 218 (tax., distr.); Gerlach, Matyot & Saaristo 1997: 31 (cat.) Cercyon laticollis Régimbart, 1903 var.: Scott 1913: 219 (tax., distr.) Cercyon (Cercyon) laticollis Régimbart, 1903: Knisch 1924: 138 (cat.) Cercyon (Cercyon) laticollis Régimbart, 1903: Hansen 1999b: 281 (cat.); Hebauer 2003b: 13 (descr., distr.), 17 (cat.), 19 (key) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar and Réunion. Inner Seychelles: Long, Mahé (“low country”), Praslin (Côtes d’Or Estate), Silhouette (Mare aux Cochons). Habitat: Not recorded. Cercyon nigriceps (Marsham, 1802) Cercyon sp.: Scott 1913: 194 (checklist), 219 (descr., distr.) Cercyon (Cercyon) atricapillus (Marsham, 1802): Bameul 1986: 888 (tax.) Cercyon (Cercyon) nigriceps (Marsham, 1802): Hansen 1999b: 284 (cat.); Hebauer 2003b: 17 (cat.), 19 (key) Distribution: Known from all zoogeographical regions. In the Malagasy Subregion recorded also from Madagascar, Réunion, Mauritius and Rodrigues. Inner Seychelles: Anonyme Island (near Mahé). Habitat: Not recorded.

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Chasmogenus mollis (Régimbart, 1903) (Plate 2) Philydrus (Philydrus) abnormalis Sharp, 1890: Scott 1913: 194 (checklist), 205 (tax., distr.) Helochares (Chasmogenus) abnormalis (Sharp, 1890): Knisch 1924: 195 (cat.) Helochares (Chasmogenus) livornicus Kuwert, 1890: Orchymont 1925: 70 (tax.) Helochares (Crephelochares) mollis (Régimbart, 1903): Orchymont 1939a: 161 (tax., fig. 4, distr.); Orchymont 1941: 15 (cat.) Philhydrus abnormalis Sharp, 1890: Marlier 1979: 53 (distr.) Chasmogenus mollis (Régimbart, 1903): Hansen 1999b: 175 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Inner Seychelles: Mahé: first record (Anse Nord-D’Est), Silhouette (Mare aux Cochons). Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Coelostoma punctulatum (Klug, 1833) (Plate 2) Coelostoma punctulatum (Klug, 1833): Kolbe 1910: 24 (distr.); Scott 1913: 194 (checklist), 195, 213 (cat.); Knisch 1924: 113 (cat.); Orchymont 1936: 10 (descr.), 11 (fig. 3); Hansen 1999b: 246 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Inner Seychelles: Mahé. Habitat: Coelostoma is generally regarded as aquatic (Hansen 1991), however, no details are known about the habitat of C. punctulatum in the Seychelles. Note: This species was recorded from Mahé by Kolbe (1910). A single specimen collected on Mahé (“low country, 1908”) might also belong to this species (Scott 1913). No specimens have been collected since. Coelostoma rusticum Mouchamps, 1958 Coelostoma rufitarse (Boheman, 1848): Scott 1913: 194 (checklist), 196, 212 (tax., distr.); Knisch 1924: 113 (cat.) Coelostoma rufitarse rusticum n. form.: Orchymont 1936: 15 (descr., fig. 6) Coelostoma rufitarse rusticum Orchymont, 1936: Orchymont 1941: 15 (cat.) Coelostoma (Coelostoma) rusticum Orchymont, 1936: Mouchamps 1958: 25 (tax.) Coelostoma rusticum Orchymont, 1958: Hansen 1999b: 247 (cat.) Distribution: Known from the Afrotropical Region. In the Malagasy Subregion also recorded from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: see under C. punctulatum. Dactylosternum abdominale (Fabricius, 1792) (Plate 2) Dactylosternum insulare Castelnau, 1840: Kolbe 1910: 24 (distr.); Scott 1913: 194 (checklist), 195, 196, 211 (biol., distr.); Knisch 1924: 116 (cat.); Gerlach, Matyot & Saaristo 1997: 32 (cat.) Dactylosternum abdominale (Fabricius, 1792): Orchymont 1941: 15 (tax.); Hansen 1999b: 254 (cat.) Distribution: Known from all zoogeographical regions. In the Malagasy Subregion recorded also from the Comoros, Madagascar, Réunion, Mauritius and Rodrigues. Inner Seychelles: Long, Mahé (Morne Blanc, Cascade Estate), Praslin (Côtes d’Or Estate), Silhouette (Jardin Marron, La Passe). Outer Seychelles: Aldabra Group: Aldabra. Habitat: Terrestrial – often found in decaying plant material, e.g. rotting fruits of Lodoicea maldivica.

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Dactylosternum pygmaeum Régimbart, 1903 (Plate 2) Dactylosternum pygmaeum Régimbart, 1903: Scott 1913: 194 (checklist), 195, 211 (tax., distr.); Knisch 1924: 116 (cat.); Hansen 1999b: 258 (cat.) Distribution: Known from the Oriental Region, the Seychelles and Mauritius. Inner Seychelles: Mahé (Morne Blanc, Cascade Estate). Habitat: Terrestrial, no details reported. Enochrus natalensis (Gemminger & Harold, 1868) (Plate 2) Philydrus parvulus Reiche, 1856: Alluaud 1900: 231 (cat.); Régimbart 1900: 50 (tax., distr.); Kolbe 1910: 24 (distr.) Philhydrus parvulus Reiche, 1856: Kolbe 1902: 574 (cat.); Voeltzkow 1902: 558 (cat.); Marlier 1979: 53 (distr.) Philydrus (Methydrus) parvulus Reiche, 1856: Scott 1913: 194 (checklist), 203 (tax., distr.); Knisch 1924: 219 (cat.) Philydrus (Methydrus) parvulus Reiche, 1856 var.: Scott 1913: 196, 204 (tax., distr.) Philydrus (Philydrus) abnormalis Sharp, 1890, partim: Scott 1913: 194 (checklist), 196, 205 (tax., distr.); Gerlach, Matyot & Saaristo 1997: 32 (cat.) Enochrus (Methydrus) parvulus (Kuwert, 1890): Orchymont 1941: 15 (cat.) Enochrus (Methydrus) natalensis (Gemminger & Harold, 1868): Hansen 1999b: 184 (cat.); Hebauer 2002a: 257 (key), 260 (fig. 2), 261 (descr., distr.), 262 (figs. 7, 8c), 267 (map) Distribution: Known from the Palearctic, Afrotropical, Oriental and Australian Regions. In the Malagasy Subregion recorded also from Madagascar, Réunion and Mauritius. Inner Seychelles: Félicité (Grande Anse), La Digue: first record (La Reunion), Mahé (Anse Royale, Anse NordD’Est, Mare aux Cochons), Praslin: first record (Cap Samy), Silhouette (La Passe, Pointe Zeng Zeng). Outer Seychelles: Coëtivy. Habitat: Enochrus natalensis is probably the most common water beetle in the Seychelles. It is found in various kinds of stagnant water. Helochares nigrifrons Brancsik, 1893 Helochares melanophthalmus var. nigrifrons Brancsik, 1893: Alluaud 1900: 231 (cat.); Régimbart 1900: 50 (tax., distr.) Helochares nigrifrons Régimbart, 1900: Kolbe 1902: 574 (cat.) Helochares melanophthalmus Mulsant, 1844: Voeltzkow 1902: 558 (cat.); Scott 1913: 194 (checklist), 196, 203 (tax., distr.) Helochares (Graphelocharus) melanophthalmus Mulsant, 1844: Kolbe 1910: 24 (cat.) Helochares (Hydrobaticus) melanophthalmus var. nigrifrons Brancsik, 1893: Knisch 1924: 194 (cat.) Helochares (Hydrocaticus [sic]) nigrifrons Brancsik, 1903: Orchymont 1939b: 297 (tax.) Helochares (Hydrobaticus) nigrifrons Brancsik, 1903: Orchymont 1939c: 319 (tax.); Orchymont 1941: 15 (cat.); Hebauer 1996: 20 (distr.), 31 (fig. 11: aedeagus); Hansen 1999b: 170 (cat.); Hebauer 2003a: 67 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Helochares sechellensis Régimbart, 1903 (Plate 2) Helochares (Graphelochares) melanophthalmus sechellensis Régimbart 1903: 27 (descr.)

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Helochares melanophthalmus sechellensis Régimbart, 1903: Kolbe 1910: 24 (distr.) Helochares melanophthalmus var. sechellensis Régimbart, 1903: Scott 1913: 194 (checklist), 196, 203 (tax., distr.); Scott 1933: 334; Marlier 1979: 53 (distr.) Helochares (Hydrobaticus) melanophthalmus ssp. sechellensis Régimbart, 1903: Knisch 1924: 194 (cat.) Helochares (Hycrobaticus [sic]) sechellensis Régimbart, 1903: Orchymont 1939b: 297 (tax.), 298 (fig. 1) Helochares (Hydrobaticus) sechellensis Régimbart, 1903: Hebauer 1996: 26 (cat.); Hansen 1999b: 171 (cat.); Hebauer 2003a: 67 (cat.) Helochares melophthalmus [sic]: Gerlach & Canning 2001: 320 (biol., distr.) Distribution: Endemic to the Inner Seychelles: Félicité (Grande Anse), La Digue (La Reunion), Mahé (Anse Royale, Anse Nord-D’Est, Beau Vallon), Praslin: first record (Anse Lazio). Habitat: Stagnant water. Paracymus alluaudianus Scott, 1913 (Plate 2) Paracymus (Paracymus) alluaudianus: Scott 1913: 194 (checklist), 196, 201 (descr.) Paracymus alluaudianus Scott, 1913: Knisch 1924: 194 (cat.); Orchymont 1926: 377 (key); Wooldridge 1977: 376 (key), 380 (fig. 5), 382 (descr.); Marlier 1979: 53 (listed as Paracymnus [sic] alluaudianus); Bameul 1986: 898 (tax.); Hansen 1999b: 109 (cat.) Paracymus chalceus alluaudianus Scott, 1913: Balfour-Browne 1952: 128 (tax.) Paracymnus [sic] alluaudianus Scott, 1913: Marlier 1979: 53 (distr.) Distribution: Probably endemic to the Seychelles. Records from Mascarenes doubtful (Bameul 1986). Inner Seychelles: Curieuse: first record, Grande Soeur: first record, Mahé (Anse Royale, Mare aux Cochons), Praslin: first record (Cap Samy), Silhouette: first record (La Passe). Outer Seychelles: Coëtivy. Habitat: Stagnant water, coastal marshes. Note: We have examined one specimen from Coëtivy, deposited in the University Museum of Zoology, Cambridge. Externally, this slightly damaged specimen, which lacks its abdomen, more or less agrees morphologically with the specimens from the Inner Seychelles. Paromicrus atomus Scott, 1913 (Plate 2) Paromicrus atomus Scott 1913: 194 (checklist), 208 (key), 210 (descr., biol.), pl. 14 (figs. 4, 11); Orchymont 1919: 131 (key); Knisch 1924: 155 (cat.); Bameul 1993: 765 (cat.); Gerlach, Matyot & Saaristo 1997: 32 (cat.); Hansen 1999b: 262 (cat.); Gerlach 2003a: 28 (distr.), 33 (distr.) Distribution: Endemic to the Inner Seychelles: Félicité, Long, Mahé (Morne Blanc, Cascade Estate, Mare aux Cochons), Praslin (Vallée de Mai, Côtes d’Or Estate), Silhouette (Mont Potà-eau, Mare aux Cochons). Habitat: Terrestrial – forest, e.g. under bark of partly decayed stem of Dracaena sp.; from the coast to higher elevations (up to 600 m). Paromicrus carinatus Scott, 1913 (Plate 2) Paromicrus carinatus Scott 1913: 194 (checklist), 208 (key, typ. gen., descr., biol.), pl. 14 (figs. 1-3, 5-9); Orchymont 1919: 130 (key); Knisch 1924: 155 (cat.); Scott 1933: 340 (biol.); Bameul 1993: 765 (cat.); Gerlach, Matyot & Saaristo 1997: 32 (cat.); Hansen 1999b: 262 (cat.) Distribution: Endemic to the Inner Seychelles: Mahé (Morne Blanc, Morne Pilot, Morne Seychellois, Mare aux Cochons), Praslin (Vallée de Mai, Côtes d’Or Estate), Silhouette (Mont Pot-à-eau).

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Habitat: Terrestrial – forest, decaying wood, 250-600 m. Found also in water-filled leaf bases of palm trees (Phoenicophorium, Roscheria), and might therefore be facultatively aquatic. Paromicrus thomasseti Scott, 1913 (Plate 2) Paromicrus thomasseti Scott 1913: 194 (checklist), 208 (key), 209 (descr., biol.), pl. 14 (fig. 10); Orchymont 1919: 130 (key); Knisch 1924: 155 (cat.); Scott 1933: 340 (biol.); Bameul 1993: 766 (cat.); Gerlach, Matyot & Saaristo 1997: 32 (cat.); Hansen 1999b: 263 (cat.) Distribution: Endemic to the Inner Seychelles: Mahé (Cascade Estate, Morne Blanc, Mont Sebert), Praslin (Vallée de Mai, Côtes d’Or Estate), Silhouette (Mont Pot-à-eau, Mare aux Cochons). Habitat: Terrestrial – forest, up to over 600 m; often found in water-filled leaf axils of palm trees (Phoenicophorium, Verschaffeltia, Lodoicea), and might therefore be facultatively aquatic. Paroosternum degayanum Scott, 1913 (Plate 2) Paroosternum degayanum Scott 1913: 194 (checklist), 221 (typ. gen., descr.), pl. 14 (fig. 22); Knisch 1924: 154 (cat.); Hansen 1999a: 242 (tax.); Hansen 1999b: 301 (cat.); Hebauer 2002b: 5 (key); Gerlach 2003a: 28 (distr.), 33 (distr.) Distribution: Known also from the Oriental Region. Inner Seychelles: Mahé (Morne Blanc), Silhouette (Gerlach 2003a). Habitat: Terrestrial – no details were reported about the habitat of the specimens collected in the Seychelles. In Asia this species was found in “cut grass”. Regimbartia inflata (Brullé, 1835) (Plate 2) Volvulus cupreus Régimbart 1900: 51 (descr.); Kolbe 1902: 574 (distr.); Voeltzkow 1902: 558 (cat.) Brachygaster denticulata Mulsant, 1853: Régimbart 1903: 41 (syn.) Brachygaster cuprea (Régimbart, 1900): Alluaud 1900: 229 (cat.) Volvulus stagnicola (Mulsant, 1853): Régimbart 1906: 267 (syn.); Scott 1913: 194 (checklist), 200 (descr., distr.); Knisch 1924: 277 (cat.) Regimbartia inflata (Brullé, 1835): Orchymont 1941: 5 (key), 14 (tax., fig. 4), 15 (cat.); Hansen 1999b: 98 (cat.) Distribution: Endemic to the Malagasy Subregion. Recorded also from Madagascar and Mauritius. Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Key to Hydrophilidae (adults) 1 Lateral margin of eyes, when seen from above, distinctly angulate. Tarsi very short; hind 2 tarsi (claws not included) about as long as terminal segment of maxillary palpi. Lateral margin of eyes, when seen from above, straight or rounded, never distinctly 4 angulate. Hind tarsi much longer than terminal segment of maxillary palpi. 2 Elytra distinctly carinate. Body length about 1.3 mm. Paromicrus carinatus 3 Elytra not carinate. Body length about 1.0-1.3 mm. 3 Intervals between elytral rows of punctures convex. Body length about 1.3 mm. Paromicrus thomasseti Paromicrus atomus Elytral intervals flat. Body length about 1.0 mm. 4 Antepenultimate segment of maxillary palpi not inflated subapically, not thicker than penultimate one. First segment of hind tarsi considerably shorter than second tarsomere

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5 6

7

8

9

10 11

12

13

14

(often hard to see without dissection), thus tarsi seem to be four-segmented (although 5 they are in fact always five-segmented). Antepenultimate segment of maxillary palpi inflated subapically, considerably thicker than penultimate one. First segment of hind tarsi always longer than second one, thus 12 tarsi always with five well-visible tarsomeres. Middle and hind tarsi dorsally with a fringe of long swimming hairs. 6 Middle and hind tarsi without swimming hairs. 8 Pronotum and elytra totally black. Regimbartia inflata Pronotum and elytra yellowish to brownish, often with dark patches, never totally 7 black. Elytra without conspicuous subapical spines. Berosus sensu stricto (for identification of the two species refer to Schödl 1994b) Elytra with a pair of conspicuous subapical spines. Berosus subgenus Enoplurus (for identification of the three species refer to Schödl 1994a) Terminal segment of maxillary palpi longer than penultimate one. Metafemur entirely without hydrofuge pubescence. Body length: 1.9-2.4 mm. Paracymus alluaudianus (Fig. 24) Terminal segment of maxillary palpi shorter than penultimate one. Metafemur with 9 hydrofuge pubescence. Body length: < 2.6 mm. Elytra with ten longitudinal rows of serial punctures. 10 Elytra without longitudinal rows of serial punctures, but with one sutural stria on each 11 elytron. Species recorded from the Inner Seychelles. Helochares sechellensis Species recorded from the Outer Seychelles (Aldabra). Helochares nigrifrons Anterior corners of pronotum (seen in dorsal view) not projecting. Pronotum and elytra more or less black, their margins narrowly reddish brown. Chasmogenus mollis Anterior corners of pronotum (seen in dorsal view) projecting, anterior margin of pronotum thus more or less distinctly U-shaped. Pronotum yellowish, medially more or less comprehensively darkened. Elytra dirty yellowish or brown, never black. Enochrus natalensis Elytra with impressed longitudinal rows of punctures. 13 Elytra without impressed longitudinal rows of punctures, at most with a pair of sutural 16 striae. Pronotum with a transverse subbasal row of punctures. Body length: ca. 1.0-1.6 mm. Paroosternum degayanum 14 Pronotum without a transverse row of punctures. Body length at least 2.0 mm. Body length: ca. 2.0-3.0 mm. Antennal base on lateral margin of head. Cercyon Body length: > 3.5 mm. Clypeus produced laterally, covering antennal base from above. 15

15

16 17

Body length: 3.5-4.0 mm. Eyes (in dorsal view) shallowly emarginate anteriorly. Dactylosternum pygmaeum Body length: ca. 4.0-5.0 mm. Eyes (in dorsal view) deeply excised (almost one third) anteriorly. Dactylosternum abdominale Body length: ca. 4.0-6.0 mm. Elytra with a pair of sutural striae. Coelostoma 17 Body length: 1.6-2.5 mm. Elytra without sutural striae. Body length: 1.6-2.0 mm. Eyes very small, not excised. Bourdonnaisia mahensis Body length: 2.2-2.5 mm. Eyes very deeply excised laterally, almost completely divided by genal projection into a dorsal and a ventral part. Bourdonnaisia silhouettae

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Family LIMNICHIDAE Hyphalus crowsoni Hernando & Ribera, 2000 Hyphalus crowsoni: Hernando & Ribera 2000: 240 (descr., figs. 1-3), 242 (map) Distribution: Endemic to the Outer Seychelles: Aldabra Group: Aldabra. Habitat: Intertidal zone of rocky coast. Hyphalus madli Hernando & Ribera, 2004 (Plate 2) Hyphalus madli Hernando & Ribera 2004: 413 (descr., biol.), 414 (figs. 1-9), 415 (fig. 10) Distribution: Endemic to the Inner Seychelles: Silhouette (Anse Lascars). Habitat: Intertidal zone of rocky coast. Family NOTERIDAE Canthydrus notula (Erichson, 1843) (Plate 1) Canthydrus notula (Erichson, 1843): Régimbart 1900: 49 (distr.); Kolbe 1902: 574 (distr.); Scott 1912: 253 (distr.); Guignot 1959b: 493 (key), 498 (descr.), 499 (fig. 422) Canthydrus biguttatus Régimbart, 1895: Kolbe 1902: 574 (syn.); Peschet 1917: 21 (descr.) Distribution: Known from the southern Palearctic and the Afrotropical Regions. In the Malagasy Subregion recorded also from Madagascar. A subspecies (Canthydrus notula comorensis Guignot, 1959) is endemic to the Comoros (Moheli). Outer Seychelles: Aldabra Group: Aldabra. Habitat: Stagnant water. Neohydrocoptus subvittulus seychellensis (Pederzani & Sanfilippo, 1978) (Plate 1) Hydrocoptus subvittulus seychellensis Pederzani & Sanfilippo 1978: 239 (descr.), 240 (fig. 1); Wewalka 1980: 724 (tax., distr.) Distribution: Endemic to the Inner Seychelles: Mahé (Anse Nord-D’Est, Port Launay), Praslin (Cap Samy). The nominotypical subspecies is known from the Oriental Region. Habitat: Stagnant water. Key to Noteridae (adults) 1 Body length: ca. 2.7-3.0 mm. Body drop-shaped. Colouration of pronotum and elytra predominantly black (pronotum usually with yellowish margin). Prosternal process apically truncate. Metacoxal process densely setose. Canthydrus notula Body length: ca. 2.2 mm. Body elongate, suboval, not distinctly drop-shaped. Colouration of pronotum and elytra yellowish and brown. Prosternal process apically pointed. Metacoxal process without setae. Neohydrocoptus subvittulus ssp. seychellensis Family SCIRTIDAE The Seychellois species of this family were recently revised by Ruta (2008), who described three new species. Specific identification should be based on the examination of genitalia. The male of Cyphon biperforatus, the female of C. insularius, and the female of Scirtes mahensis are still unknown. Cyphon biperforatus Champion, 1924 Cyphon biperforatus Champion 1924: 298 (descr.); Ruta 2008: 50 (descr.)

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Distribution: Endemic to the Inner Seychelles: Mahé (Cascade Estate). Habitat of larva: Not exactly known, around 300 m. Cyphon insularius Champion, 1924 (Plate 2) Cyphon insularius Champion 1924: 296 (descr.); Gerlach, Matyot & Saaristo 1997: 31 (cat.); Ruta 2008: 51 (descr.) Cyphon circumductus Champion 1924: 297 (descr.); Ruta 2008:51 (syn.) Distribution: Endemic to the Inner Seychelles: Mahé (Cascade Estate, Mare aux Cochons, Morne Seychellois, Port Glaud), Silhouette (Grande Barbe, Mare aux Cochons). Habitat of larva: Stagnant water, maybe also in running water and/or phytotelmata; from the coast up to 600 m. Cyphon mahensis Champion, 1924 Cyphon mahensis Champion 1924: 298 (descr.); Ruta 2008: 55 (descr.) Distribution: Endemic to the Inner Seychelles: Mahé (Mare aux Cochons, Port Glaud). Habitat of larva: Not exactly known; 150-600 m. Scirtes confinis Ruta, 2008 Scirtes confinis Ruta 2008: 59 (descr.) Distribution: Endemic to the Inner Seychelles: Mahé (Cascade Estate, Mare aux Cochons, Morne Blanc), Silhouette (Mare aux Cochons). Habitat of larva: Not exactly known; ca. 300-600 m. Scirtes flavohumeralis Ruta, 2008 (Plate 2) Scirtes flavohumeralis Ruta 2008: 61 (descr.) Distribution: Endemic to the Inner Seychelles: Grande Soeur, La Digue, Mahé (Anse aux Pins), Praslin (Anse Lazio), Silhouette (Grande Barbe). Habitat of larva: Stagnant water, near coast. Scirtes mahensis Ruta, 2008 (Plate 2) Scirtes mahensis Ruta 2008: 64 (descr.) Distribution: Endemic to the Inner Seychelles: Mahé (Bel Ombre). Habitat of larva: Not exactly known, probably in stagnant water; near coast. Scirtes seychellensis Champion, 1924 Scirtes seychellensis Champion 1924: 299 (descr.); Gerlach, Matyot & Saaristo 1997: 31 (cat.); Ruta 2008: 57 (descr.) Distribution: Endemic to the Inner Seychelles: Mahé (Cascade Estate, Mare aux Cochons: marsh at summit of pass). Habitat of larva: Stagnant water, maybe also in running water and/or phytotelmata; 300-600 m. Key to Scirtidae (adults) (modified after Ruta 2008) 1 Hind femora not enlarged. Hind tibia without apical spine. 2 Hind femora distinctly enlarged. Hind tibia with long apical spine. 4 2 Body length 1.4-1.6 mm. Cyphon mahensis 3 Body length ca. 1.9-2.4 mm. 3 Body form elongate, length/width ratio of elytra app. 1.5. Female: Apterous. Upper surface unicoloured yellowish-brown. Elytra with a pair of conspicuous oval patches near anterior margin. Male unknown. Cyphon biperforatus

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4

Body form broader, length/width ratio of elytra app. 1.2. Male: Hind wings present. Upper surface usually bicoloured: pronotum dark brown, elytra paler brown. Elytra without oval patches. Female unknown. Cyphon insularius Elytra usually brown with large yellowish humeral region, rarely completely yellowish. Scirtes flavohumeralis Elytra unicoloured brown. Scirtes confinis, S. mahensis and S. seychellensis (these three species can be distinguished from each other mainly by the shape of the aedeagus – see Ruta 2008)

Discussion So far, 54 species of water beetles in the wider sense (including Shore Beetles and some terrestrial hydrophilids) are recorded from the Seychelles. However, the actual number of species is higher because of several undescribed/unidentified species. At least two undescribed species of Copelatus (Dytiscidae) were collected recently (Silhouette, leg. R. Gerlach, 2005; Conception, leg. P. Matyot, 2001). Undescribed species of Hydraena Kugelann (Hydraenidae) and Microlara Jäch (Elmidae) were discovered by G. Wewalka in 2007 on La Digue resp. Silhouette. Undescribed species are to be expected also in the family Scirtidae (e.g. Champion 1924: 298); three of the seven known Seychellois species were described very recently. The genus Cercyon (Hydrophilidae) dearly needs revision: Some specimens deposited in the Vienna Natural History Museum can not be identified properly at present, they might represent a species new to science or an unidentified species known from elsewhere. The family Scirtidae is most noteworthy in the Seychelles. All seven species are endemic to the Inner Seychelles. The females of at least two species, Cyphon biperforatus and C. mahensis, are wingless, which is a most unusual character in this family. Females of C. insularius have so far not been collected, they might be wingless too. Three other families, Hydraenidae, Elmidae, and Limnichidae, are represented in the Seychelles exclusively by endemic species. In the Hydrophilidae, seven out of 19 species (= 37 %) and in the Dytiscidae, two out of 14 species (= 14%) are endemic to the Seychelles. Two endemic water beetle genera are so far known from the Seychelles: Bourdonnaisia Scott (Hydrophilidae) and Microlara (Elmidae), each with two species (the second Microlara species being still undescribed). The water beetle faunas of the Inner Seychelles (34 spp.) and the Outer Seychelles (26 spp.) differ from each other quite significantly (Table 1). While there are 19 described endemic species (= 56%) in the Inner Seychelles, only one endemic species (= 4%), i.e. Hyphalus crowsoni, is so far recorded from the Outer Seychelles. Only six species occur on the Inner and the Outer Seychelles. It should be noted here, that, with the inclusion of the four known undescribed species (see above) the percentage of endemic water beetles of the Inner Seychelles raises to 68. Among the islands of the Outer Seychelles Aldabra is to be regarded as a water beetle hot spot. Twenty-two of the 26 species recorded from the Outer Seychelles occur on this particular atoll. Its proximity to Madagascar and the African continent and the relative abundance of fresh water habitats are obviously responsible for this wealth of aquatic taxa. In contrast, only three species are known from Coëtivy and only one from Farquhar. The water beetle fauna of the Seychelles is clearly of African origin. Apart from the 21 endemic species, 23 species are confined to the Afrotropical Region. Thirteen of these 23 species are Malagasy endemics. Almost all the endemic species of the Seychelles have their closest relatives, as far as we are able to confirm at present, in the Afrotropical Region. An exception is Neohydrocoptus subvittulus ssp. seychellensis. The nominotypical subspecies is Oriental in

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distribution. The phylogenetic sister group of Bourdonnaisia is, however, totally unknown at present. The genus Psalitrus Orchymont, which Scott (1926: 4) considered to be closely related, in fact belongs to the tribe Omicrini, whereas Bourdonnaisia is placed in Coelostomatini. The True Water Beetles of the Seychelles are probably all autochtonous, whereas among the terrestrial hydrophilids several species (e.g. Cercyon conjiciens, C. nigriceps, both species of Dactylosternum) are to be regarded as introduced. The majority of the Seychellois water beetles is found in coastal fresh water marshes. No halophilic species, except for the intertidal coastal limnichids, are known. Very few species are found in running water, Microlara mahensis being the only strict rheobiont. Bourdonnaisia mahensis and B. silhouettae can be regarded as the most peculiar water beetles of the Seychelles, not only because of their morphology (the male antenna of B. mahenis consists of eight antennomeres, while in the female there are nine antennal segments; both species are wingless), but also due to their unique habitat, which was perfectly described by Scott (1913: 215): “… the specimens were only found in extremely circumscribed areas on the very summits of the highest peaks of Mahé and Silhouette, at elevations of over 2000 feet [= 610 m], in the highest and dampest forest-zone. These peaks are covered with forest of the endemic Capucin Tree, Northea seychellarum, which has big smooth leathery leaves. These leaves, when fallen and dead, collect in hollows on the ground, lying closely on one another and (owing to the extreme humidity) having films of moisture between them. In this moisture the beetles live: when the leaves are pulled apart and turned over the little creatures are seen crawling on the wet and slimy surfaces, their shape causing them to fit closely down on to the leaf, …”. Like madicolous beetles in hygropetric habitats, specimens of Bourdonnaisia are completely covered with water. Therefore they have to be considered truly aquatic sensu Jäch (1998). However, in contrast to typical hygropetric habitats the water on the Northea leaves is usually not flowing (unless it rains) and the substrate is organic. Analogously, this peculiar type of habitat could be termed “hygrophylic habitat” and the mode of life “phyllomadicolous”. According to Vinson (1962) Psalitrus vinsoni Balfour-Browne, 1958 from Mauritius lives in the same type of habitat. Truly hygropetric habitats have been inadequately explored in the Seychelles so far. The only Seychellois species which was collected in this type of habitat is Hydraena mahensis. Phytotelmata are remarkably well represented in the moist mountain forests of the highest peaks on Mahé and Silhouette. Leaf bases of various species of palms (Lodoicea maldivica, Coco de Mer; Phoenicophorium borsigianum, Thief Palm; Roscheria melanochaetes, Latanier Hauban; Verschaffeltia splendida, Seychelles Stilt Palm) and Screwpines (Pandanus hornei and P. sechellarum) are often populated by small animals (Champion 1924: 298, Marlier 1979: 53, Scott 1933: 340). These lofty potholes can be filled with plant debris, soil and water, thus forming ideal microhabitats for numerous beetles. Sixty-four species of beetles were recorded from this peculiar type of habitat by Scott (1933). Some parts of the mist forests of Mahé and Silhouette, where palms and screwpines abound, have therefore been called “marshes on stilts”. Most of the 64 beetle species use the wet detritus/soil of the phytotelmata as habitat, a few species are however truly aquatic (Copelatus pandanorum Scott, Dytiscidae, found in Pandanus, and Cyphon sp., Scirtidae, found in Verschaffeltia). Some of the 64 species recorded by Scott (1933), as for instance Paromicrus carinatus and P. thomasseti, might in fact be facultatively aquatic. The behaviour of all these species should be examined closely to determine their habitat requirements exactly. The two limnichid species are noteworthy because of their intertidal mode of life. Thorough investigations of this habitat type are still wanting in the Seychelles. The discovery of additional new endemic species on other islands can be expected.

31

Our knowledge of the riparian fauna of the Seychelles is still very scanty. It is quite probable that for instance some carabid or staphylinid species are in fact living at the edge of inland waters or in the littoral zone of the Indian Ocean. The Shore Beetle fauna of the Seychelles is dearly in need of thorough investigations. Occurrence of Phytophilous Water Beetles, Facultative Water Beetles, and Parasitic Water Beetles has so far not been confirmed for the Seychelles. Several hydrophilid genera (Cercyon, Dactylosternum, Paromicrus, Paroosternum) are obviously more or less completely terrestrial. The larvae of most species of the Seychellois water beetles, including the endemic genera (Bourdonnaisia, Microlara), are still unknown. Acknowledgements We are indebted to G. Wewalka (Vienna) for providing unpublished faunistic data, and for the identification of Uvarus rivulorum. Thanks are also due to F. Bameul (Villenave d’Ornon), O. Biström (Helsinki), M. Fikácek (Praha), W.A. Foster (University Museum of Zoology, Cambridge), J. Gerlach (Cambridge), R. Gerlach (Seychelles), J.E. Hogan (Oxford University Museum), A. Komarek (Mödling), P. Matyot (Seychelles), R. Stebbings (University Museum of Zoology, Cambridge), R. Ruta (Wroclaw), A.E.Z. Short (Kansas City) and C. Taylor (Natural History Museum, London) for contributing to this publication in various ways. The photographs were made by M. Brojer (Vienna). References Alluaud, C. 1897. Énumeration des Dytiscidae et Gyrinidae des Îles Mascareignes et Séchelles. Bull. Soc. Entomol. France 1897: 210-214. Alluaud, C. 1900. Liste des Insectes Coléoptères de la Region Malgache. In: Grandidier, A. (ed.): Histoire Physique, Naturelle et Politique de Madagascar 21. Histoire Naturelle des Coléoptères 1 Texte 1: V–VIII, 509 pp. Balfour-Browne, J. 1950. On the aquatic Coleoptera of Northern Rhodesia (Dytiscidae, Gyrinidae and Palpicornia). Occ. Pap. Natnl. Mus. S. Rhodesia 2(16): 359-399. Balfour-Browne, J. 1952. Mission A. Villiers au Togo et au Dahomey (1950). Bull. Inst. franc. Afr. Noire 14,1: 126-139. Balfour-Browne, J. 1954. Descriptions of four new species of Hydrophilidae from Mauritius and Réunion. Mauritius Inst. Bull. 3,4: 227-233. Balke, M., M.A. Jäch & L. Hendrich. 2004. Insecta: Coleoptera, pp. 555-609. In: Yule, C.M. & H.S. Yong (eds.): Freshwater invertebrates of the Malaysian Region. Academy of Sciences Malaysia, Kuala Lumpur. 861 pp. Bameul, F. 1984. Haliplidae, Noteridae, Dytiscidae et Gyrinidae capturés dans les Îles Mascareignes et à Madagascar par Yves Gomy (Coleoptera, Hydradephaga). Nouv. Revue Ent. (N.S.) 1(1): 87-103. Bameul, F. 1986. Les Hydrophiloidea des Îles Mascareignes (Coleoptera). Rev. Suisse Zool. 93(4): 875-910. Bameul, F. 1993. Omicrini from Sulawesi Utara, Indonesia (Coleoptera: Hydrophilidae: Sphaeridiinae). Invertebr. Taxon. 7: 751-778. Biström, O. 1982. A revision of the genus Hyphydrus Illiger (Coleoptera, Dytiscidae). Acta Zool. Fenn. 165: 121 pp. Biström, O. 1988. Generic review of the Bidessini (Coleoptera, Dytiscidae). Acta Zool. Fenn. 184: 41 pp. Biström, O. 1997. Taxonomic revision of the genus Hydrovatus Motschulsky (Coleoptera, Dytiscidae). Entomol. Basil. 19: 57-584.

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Champion, G.C. 1924. Coleoptera from the Seychelles: Lampyridae, Helodidae, Cantharidae, Melyridae, and supplement to Cleridae. Trans. Entomol. Soc. 1923(3-4): 295-304. Fabricius, J.C. 1781. Species insectorum exhibentes eorum differentias specificas [etc.] I–II. Hamburgi et Kilonii: VII+552 pp. Gerlach, J. 2003a. Animal diversity on small islands – the pattern of invertebrates in the Seychelles islands and its implications for conservation planning. Biota 4(1-2): 21-48. Gerlach, J. 2003b. The biodiversity of the granitic islands of Seychelles. Indian Ocean biodiversity assessment 2000-2005. Biodiversity assessment celebrating the centenary of the Percy Sladen Trust Expedition to the Indian Ocean. Phelsuma 11(B): 47 pp. Gerlach, J. & L. Canning. 2001. Range contractions in the critically endangered Seychelles terrapins (Pelusios spp.). Oryx 35(4): 313-321. Gerlach, J., P. Matyot & M. Saaristo. 1997. Silhouette species list. Phelsuma 5(A): 42 pp. Grouvelle, A. 1913. Coleoptera: Nitidulidae, Heteroceridae. Trans. Linn. Soc. Lond. (2nd ser., Zool.) 16(1): 93-116. Guéorguiev, V.B. 1968. Essai de classification des Coléoptères Dytiscidae, I. Tribus Copelatini (Colymbetinae). Izv. Zool. Inst. Musei Sofia 28: 5-45. Guignot, F. 1946. Mission scientifique de l’Omo 6 (58). Coleoptera Dytiscidae (2e partie). Mém. Mus. Natnl. Hist. Nat. Paris 19(2) (1945): 215-322. Guignot, F. 1959a. Revision des hydrocanthares d’Afrique (Coleoptera Dytiscoidea) première partie. Ann. Mus. Roy. Congo Belge Tervuren, (Sér 8°, Sci. Zool.) 70: 1-313. Guignot, F. 1959b. Revision des hydrocanthares d’Afrique (Coleoptera Dytiscoidea) deuxième partie. Ann. Mus. Roy. Congo Belge Tervuren, (Sér 8°, Sci. Zool.) 78: 323-648. Guignot, F. 1961. Revision des hydrocanthares d’Afrique (Coleoptera Dytiscoidea) troisième partie. Ann. Mus. Roy. Congo Belge Tervuren, (Sér 8°, Sci. Zool.) 90: 659-995. Hansen, M. 1991. The hydrophiloid beetles. Phylogeny, classification and a revision of the genera (Coleoptera, Hydrophiloidea). Biol. Skr. 40: 367 pp. Hansen, M. 1998. Hydraenidae (Coleoptera). World Catalogue of Insects 1: 168 pp. Hansen, M. 1999a. Taxonomic changes in the genera Oosternum Sharp and Paroosternum Scott (Coleoptera: Hydrophilidae). Entomol. Scand. 30: 240-241. Hansen, M. 1999b. Hydrophiloidea (Coleoptera). World Catalogue of Insects 2: 416 pp. Hebauer, F. 1992. The species of the genus Chasmogenus Sharp, 1882 (Coleoptera, Hydrophilidae). Acta Coleopterologica 7(2): 61-92. Hebauer, F. 1996. Synopsis der afrikanischen Arten der Gattung Helochares Mulsant (Coleoptera: Hydrophilidae). Acta Coleopterologica 12(2): 3-38. Hebauer, F. 2002a. Taxonomische Studien zur Hydrophiliden-Gattung Enochrus Thomson, 1859. 3. Teil: Die afrikanischen Arten der Untergattung Methydrus Rey, 1885. B: Die Enochrus natalensis-Gruppe. Beiträge Entomol. 52(1): 255-269. Hebauer, F. 2002b. New Hydrophilidae of the Old World (Coleoptera, Hydrophilidae). Acta Coleopterologica 18(3): 3-24. Hebauer, F. 2003a. Checklist of the Malagasy Helochares with description of a new species (Coleoptera: Hydrophilidae). Acta Coleopterologica 19(1): 67-69. Hebauer, F. 2003b. Review of the Malgassic Cercyon, with description of a new species and a new genus (Coleoptera: Hydrophilidae). Acta Coleopterologica 19(2): 5-26. Hernando, C. & I. Ribera. 2000. The first species of the intertidal genus Hyphalus Britton from the Indian Ocean (Coleoptera: Limnichidae: Hyphalinae). Ann. Soc. Entomol. France, N.S. 36(3): 239-243. Hernando, C. & I. Ribera. 2004. Hyphalus madli sp.n., a new intertidal limnichid beetle from the Seychelles (Coleoptera: Limnichidae: Hyphalinae). Koleopt. Rdsch. 74: 413-417.

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Jäch, M.A. 1993. Microlara gen. n. mahensis sp. n., from the Seychelles (Coleoptera: Elmidae, Larainae). Zeitschr. Arbeitsgemeinschaft Österr. Entomologen 45(1/2): 15-18. Jäch, M.A. 1998. Annotated check list of aquatic and riparian/littoral beetle families of the world (Coleoptera), pp. 25-42. In: Jäch, M.A. & L. Ji (eds.): Water Beetles of China, Vol. II. Wien: Zoologisch-Botanische Gesellschaft in Österreich and Wiener Coleopterologenverein, 371 pp. http://www.nhm-wien.ac.at/nhm/2Zoo/coleoptera/publications/china_vol2_ index.html Jäch, M.A. & M. Balke. 2003. Key to adults of Chinese water beetle families (Coleoptera). In: Jäch, M.A. & Ji, L. (eds.): Water Beetles of China, Vol. III, pp. 21-36. Wien: ZoologischBotanische Gesellschaft & Wiener Coleopterologenverein, VI+572 pp. Jäch, M.A. & M. Balke. 2008. Global diversity of water beetles (Coleoptera) in freshwater, pp. 419-442. In: Balian, E.V., C. Levéque, H. Segers & K. Martens (eds.): Freshwater Animal Diversity Assessment. Hydrobiologia 595(1): 1-637. DOI: 10.1007/s10750-007-9117-y. Jäch, M.A., R.G. Beutel, J.A. Díaz & J. Kodada. 2000. Subgeneric classification, description of head structures, and world check list of Hydraena Kugelann (Insecta: Coleoptera: Hydraenidae). Ann. Naturhist. Mus. Wien 102B: 177-258. Knisch, A. 1924. Hydrophilidae. In: Schenkling, S. (ed.): Coleopterorum Catalogus 79. Berlin: W. Junk, 306 pp. Kolbe, H. 1902. Koleopteren der Aldabra-Inseln. Abhand. Senckenb. naturf. Gesellsch. 26(4): 569-586. Kolbe, H. 1910. Die Coleopterenfauna der Seychellen. Nebst Betrachtungen über die Tiergeographie dieser Inselgruppe. Mitt. Zool. Mus. Berlin 5(1): 1-44. Linell, M.L. 1897. On the insects collected by Doctor Abbott on the Seychelles, Aldabra, Glorioso, and Providence islands, with descriptions of nine new species of Coleoptera. Proc U.S. Natl. Mus. 19,1119: 695-706. Marlier, G. 1979. Un mission hydrobiologique aux Seychelles. Les Naturalistes Belges 60(1): 44-58. Miller, K.B. 2002. Revision of the genus Eretes Laporte, 1833 (Coleoptera, Dytiscidae). Aquat. Insects 24(4): 247-272. Mouchamps, R. 1958. Notes sur quelques Coelostoma (Brullé) (Coléoptères Hydrophilidae) principalement africains (12me note). Bull. Ann. Soc. Entomol. Belg. 34(41):1-36 Nilsson, A.N. 2001. Dytiscidae (Coleoptera). World Catalogue of Insects 3: 395 pp. Nilsson, A.N., A. Bilardo & S. Rocchi. 1997. A check list of Copelatus Erichson 1832 species (Coleoptera Dytiscidae) from Afrotropical and Madagascan regions with a review of published penis drawings. Tropical Zoology 10(1): 11-48. Orchymont, A. d’ 1919. Contribution à l’étude des sous-familles des Sphaeridiinae et des Hydrophilinae (Col. Hydrophilidae). Ann. Soc. Entomol. France 88: 105-168. Orchymont, A. d’ 1925. Contribution à l’étude des hydrophilides I. Bull. Ann. Soc. Entomol. Belg. 65: 63-77. Orchymont, A. d’ 1926. Notes on Philippine Hydrophilidae. Philipp. J. Sci. 30(3): 361-385. Orchymont, A. d’ 1936. Revision des Coelostoma (s.str.) non américans. Mém. Mus. Roy. Hist. Nat. Belg., Deuxième Série, 7: 3-38. Orchymont, A. d’ 1939a. Revision des espèces du sous-genre Crephelochares d’Helochares. Bull. Ann. Soc. Entomol. Belg. 79: 154-166. Orchymont, A. d’ 1939b. Notes sur les Helochares africains. Bull. Ann. Soc. Entomol. Belg. 79: 293-323. Orchymont, A. d’ 1939c. Helochares (Hydrobaticus) Andreinii n. sp., H. melanophthalmus Régimbart, 1905 (nec Mulsant, non Reiche). Redia 25: 319-322.

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Orchymont, A. d’ 1941. Revision des espèces du genre Régimbartia Zaitzev (Coleoptera Hydrophilidae). Bull. Mus. Royal Hist. Nat. Belg. 17(4): 1-15. Orchymont, A. d’ 1947. Report on Palpicornia (Coleoptera), Mr. Omer-Cooper’s investigation of the Abyssinian fresh waters (Hugh Scott Expedition). Proc. Zool. Soc. Lond. 117(4): 716-741. Pederzani, F. 1982. Notes on some Dytiscidae of the British Museum (Natural History) with descriptions of three new species. Boll. Soc. Entomol. Ital. 114(8-10): 139-143. Pederzani, F. & N. Sanfilippo. 1978. Contributo alla conoscenza dei dytiscidi delle isole Seychelles e del Madagascar. Mem. Soc. Entomol. Ital. 56: 239-243. Peschet, R. 1917. Coléoptères des Îles Mascareignes et Séchelles. Ann. Soc. Entomol. France 86(1): 1-56. Régimbart, M. 1895. Revision des Dytiscidae et Gyrinidae d’Afrique, Madagascar et Îles voisines. En contribution a la faune entomologique du Congo. Mém. Soc. ent. Belgique 4: 1-244. Régimbart, M. 1897. Dytiscides nouveaux recueillis par M. Ch. Alluaud aux Séchelles et à l’Île Maurice. Bull. Soc. Entomol. France 1897,13: 208-210. Régimbart, M. 1900. Coléoptères aquatiques capturés dans l’Île d’Aldabra, près des Comores, par le Dr. Voeltzkow, de Strasbourg, et communiqués par le Dr Bergroth. Bull. Soc. Entomol. France 1900,3: 49-52. Régimbart, M. 1903. Coléoptères aquatiques (Haliplidae, Dytiscidae, Gyrinidae et Hydrophilidae) recueillisdans le sud de Madagascar par M. Ch. Alluaud (Juillet 1900–Mai 1901). Ann. Soc. Entomol. France 72,1y:1-51. Régimbart, M. 1906. Voyage de M.Ch. Alluaud dans l’Afrique orientale. Dytiscidae, Gyrinidae, Hydrophilidae. Ann. Soc. Entomol. France 75: 235-278. Ruta, R. 2008. Contribution to the knowledge of Seychellian Scirtidae (Coleoptera: Scirtoidea). Zootaxa 1913: 49-68. Schödl, S. 1994a. Revision der Gattung Berosus Leach 4. Teil: Die äthiopischen und madegassischen Arten der Untergattung Enoplurus Hope (Coleoptera: Hydrophilidae). Koleopt. Rdsch. 64: 141-187. Schödl, S. 1994b. Revision der Gattung Berosus Leach 5. Teil: Die äthiopischen und madegassischen Arten der Untergattung Berosus Leach, s.str. A: Die Berosus nigriceps Gruppe (Insecta: Coleoptera: Hydrophilidae). Ann. Naturhist. Mus. Wien 96B: 209-246. Scott, H. 1910. Eight month’s entomological collecting in the Seychelles Islands. Trans. Linn. Soc. Lond. (2nd ser., Zool.) 14(1): 21-39. Scott, H. 1912. Coleoptera, Lamellicornia and Adephaga. Trans. Linn. Soc. Lond. (2nd ser., Zool.) 15 (2): 215-262. Scott, H. 1913. Coleoptera; Hydrophilidae, Histeridae. Trans. Linn. Soc. Lond. (2nd ser., Zool.) 16(2): 193-235, pl. 12. Scott, H. 1926. Coleoptera, Ciidae. Trans. Linn. Soc. Lond. (2nd ser., Zool.) 19(1): 1-41, pl. 1. Scott, H. 1933. General conclusions regarding the insect fauna of the Seychelles and adjacent islands. Trans. Linn. Soc. Lond. (2nd ser., Zool.) 19(3): 307-391. Starmühlner, F. 1979. Results of the Austrian Hydrobiological Mission, 1974, to the Seychelles-, Comores- and Mascarene Archipelagos: Part I: Preliminary report: Introduction, methods, general situation of the islands with description of the stations and general comments on the distribution of the fauna in the running waters of the islands. Ann. Naturhist. Mus. Wien 82B: 621-742, 17 pls. Vinson, J. 1962. Catalogue of the Coleoptera of Mauritius and Rodriguez. Part IV and Supplement I. Mauritius Inst. Bull. 4(4): 197-297. Vinson, J. 1967. Liste chorologique des coléoptères des Mascareignes. Mauritius Inst. Bull. 4(5): 299-272.

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Voeltzkow, A. 1902. Die von Aldabra bis jetzt bekannte Flora und Fauna. Abhand. Senckenb. naturf. Gesellsch. 26(4): 539-565. Wewalka, G. 1980. Results of the Austrian Hydrobiological Mission, 1974, to the Seychelles-, Comores- and Mascarene Archipelagos: Part VII: Dytiscidae, Gyrinidae (Coleoptera). Ann. Naturhist. Mus. Wien 83B: 723-732. Wooldridge, D.P. 1977. The Paracymus of the Ethiopian Faunal Region (Coleoptera: Hydrophilidae). J. Kans. Entomol. Soc. 50(3): 375-388. Zimmermann, A. 1919. Die Schwimmkäfer des Deutschen Entomologischen Museums in Berlin-Dahlem. Arch. Naturgesch. 83(A) 12: 68-249. Zimmermann, A. 1920: Dytiscidae, Haliplidae, Hygrobiidae, Amphizoidae. – In: Schenkling, S. (ed.): Coleopterorum Catalogus 71. Berlin: W. Junk, 326 pp.

2. TERRESTRIAL BEETLES

Key to terrestrial Coeloptera families in Seychelles: Antennae not clubbed 2. 31. Antennae clubbed or terminally expanded Antennae long, fine and hairy Scaphididae 2. Body elongate or oval 3. 27. Body rounded 3. Elytra short, elongate, exposed abdomen Staphylinidae 4. Elytra covering abdomen Elytra covering abdomen, except for projecitng pygidium Mordellidae 4. Antennae short, eyes large, female wingless (fireflies and glow worms) Lampyridae 5. Not as above 5. Long legged, often brightly coloured 6. 13. Shorter legged 6. Elongate with a distinct neck formed by elongate anterior part of thorax 8. 7. Neck not distinct 7. Antennae very lomg (longhorn and blister beetles) 9. 10. Antennae not lomg 8. Black Pedilidae Not uniform black Anthicidae 9. Elytra soft Canthariidae Elytra hard Cerambycidae 10. Elytra hard, not hairy 11. Slightly hairy body, elytra slightly soft Melyridae 11. Fast-running, powerful jaws, antennae 11 segmented Carabidae 12. Jaws not obvoisuly powerful Cistelidae 12. Very large eyes and jaws, antennae attached above jaws, body flattened Cicindellinae Antennae attached between eyes and jaws Carabinae 13. Jewel beetles, metallic, bullet shaped, pointed abdomen Buprestidae 14. Otherwise 14. Eyes large, antennae long, filiform or lamellate 48. Eyes large, rostrum projecting, antennae long, broad ½ way down rostrum Brentidae 15. Eyes not large, or without long antennae or rostrum 1.

36 15.

16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32.

33. 34. 35. 36. 37.

Antennae long, filiform 16. Antennae moderately long, stout Jacobsoniidae 23. Antennae short Antennae very long, often flattened Cermabycidae 17. Antennae moderately long Very narrow 18. 19. Ovate to elongate, hard Elytra and body soft Oedmeridae Hard bodied Ostomidae Minute, flattened beetles 20. 21. Otherwise Head partly covered by thorax Ptiliidae Head not covered Xylophilidae Tarsi of middle leg with 4 segments Tenebrionidae 22. Middle tarsi with 5 segments Oval to elonage (less than 3 times as long as wide); thorax rectangular Cucujidae Lymexylonidae Very elongate (at least 3 times as long as wide); thorax rectangular Eyes large 24. 25. Eyes not large Brightly coloured, hairy, jaws moderate, visible Cleridae Dull, jaws small Melandryidae Click mechanism, backwards projecting edges to thorax, jaws samll, concealed 26. Grain beetle – small, short legged, serrated edges of thorax Silvanidae Thorax longer than wide Elateridae Thorax narrower than wide Melasidae Distinct neck Scydmaenidae 28. No distinct neck Very rounded, head sunk into pronotum 29. Slightly rounded, very long antennae Ptinidae Flattened, long antennae Endomychidae 30. Hemispherical Short antennae, legs short and retractable Coccinellidae Long antennae, legs variable Chrysomelidae Elytra truncate, exposing end of abdomen Monotomidae 32. Elytra long Eyes large, exposed 33. 35. Eyes not large or completely covered by thorax Eyes large and partially covered Ciidae Body oval, thorax confluent with elytra 34. Otherwise Colydiidae Head exposed Phalacridae Head covered Corylophidae Club short 36. 49. Club elongate Antennae elbowed 37. 42. Antennae not elbowed Fore limbs powerful, spiny 38. Forelimbs not powerful Curculionoidea 39.

37 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48.

49.

50. 51. 52.

Jaws not especially large, slightly flattened, shiny Histeridae Large jaws Lucanidae Antennae straight, club loose 40. Antennae elbowed, club compact Curculionidae & Dryophthoridae Eyes lateral, widely separated Anthribidae 41. Eyes dorsal, close or contiguous Narrow, elongate-oval Brentidae Short, oval Attelabidae Jaws visible from above 43. 44. Jaws hidden from above Hairy or scaly, oval to elongate Dermestidae Smooth, shiny, small but powerful jaws Nitidulidae Head covered by thorax Notophygidae 45. Head exposed Forelimbs modified for digging Scarabaeidae 46. Forelimbs not modified Elytra short Staphylinidae (Pselaphinae) 47. Elytra covering abdomen Head elongate with antennae terminal Lathrididae Head not elongate, antennae near eyes Cryptophagidae At least 15mm long, elongate, at least 3 times longer than wide; male antennae a very large comb; empodium present Callirhipidae Less than 10mm long; body less than 3 times as long as wide, tarsal empodium reduced Ptilodactylidae Mid-tarsi with 5 segments 50. Mycetophagidae Mid-tarsi with 4 segments, flattened Phalacridae Mid-tarsi wth 4 distinct segments and a reduced 5th, oval Mid-coxal cavities open laterally 51. 52. Mid-coxal cavities closed At least 11 antennal segments; elongate, hairy Throscidae Sphindidae Fewer than 11 antennal segments; oval, punctured in rows Fore coxal cavities open; thorax with tubercles on hind margin Scydmaeidae Fore coxal cavities closed; not tuberculate Bostrichidae Suborder Adephaga Family CARABIDAE Pier Mauro Giachino

Ground beetles are terrestrial predators, phytophagous or spermaphagous usually found in open habitats, forests soils or subterranean environment. Several subfamilies have been described (Lorenz 2005) as treated here. The Cicindelinae are tiger beetles, usually brightly coloured, with long legs, prominent jaws and large eyes. The remaining carabids are typical ground beetles, usually dark coloured, with shorter legs and smaller eyes and jaws. Identifications of recently collected material was provided by G.E. Ball and D. Shpeley. The paucity of the Seychelles carabid fauna has been noted by Scott (1922), Basilewsky (1972) and Becker (1975).

38

Key to Seychelles Carabidae: 1. Clypeus and labrum more wide than antennal insertion Myriochila melancholica ssp. 2. Clypeus and labrum less wide than antennal insertion 2. Penultimate labial palpomere with 2-3 setae Stenolophus (Egadroma) spp. 3. Penultimate labial palpomere with numerous setae 3. 7-8 abdominal sterna exposed; elytra truncate Pheropsophus (Stenaptinus) humeralis 6 abdominal sterna exposed; elytra may be truncate or complete 4. 4. Mandibular scrobe with at least one seta 12. 5. Mandibular scrobe without setae 5. Head with 0-1 pair of setal punctures above eyes 6. 9. Head with 2 pairs of setal punctures above eyes 6. Elytra without internal plica near apex 7. 17. Elytra with internal plica near apex 7. Antennomere 3 with sparse setae, not pubescent; terminal part of antennomere 4 21. pubescent 8. Antennomere 3 terminally pubescent, antennomere 4 all pubescent 8. Maxillary palps elongate; labial palps not elongate. Abacetus (Caricus) gondati 18. Maxillary and labial palps not elongate, similar in size 9. Pronotum narrow, elongate wide, as wide as head 10. 11. Pronotum broader than head 10 Terminal maxillary and/or labial palpomeres triangular. Pachycallida rufoplagiata Terminal palpomeres cylindrical. Casnoidea sp. 11 Elytra apex truncate 22. Elytra apex entire Perigona (Trechicus) nigriceps 12. Eyes absent 13. 14. Eyes present 13. 8th and 9th pores of the umbilicate series geminate Paranillus insularis 8th and 9th pores of the umbilicate series not geminate Argiloborus scotti 14. Elytra uniform 15. Tachys jucundulus Elytra dark with 2 pale patches 15. Uniform colour Elaphropus (Tachyura) ascendens 16. Elytra paler than head and thorax or with pale areas 16. Uniformly blackish with a slight bronze tint Elaphropus (Tachyura) bibulus Head and thorax dark blue, elytra different Tachys spp. 17. Black with yellow spots on elytra Chlaenius (Pachydinodes) bisignatus Black with green tint; elytral margins brown Chlaenius (Oochlaenius) allacteus 18. Length 30mm, rhino beetle 250m >300m ? 600m >300m >300m lowland 300m 500m lowland lowland lowland lowland coastal >500m Pisonia sechellarum all altitudes lowland >300m

Seychelles Red List CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) CR (B1a,biii) (EX?) EN (B2a,biii) (EX?) CR (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) EN (B2a,biii) (EX?) EN (B1,2a,biii) (EX?) DD CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) DD CR (B1a,biii) (EX?) EN (B2a,biii) (EX?) CR (B1a,biii) (EX?) LC DD DD LC LC CR (B2a,biii) LC DD LC

228

Species Sciatrophus fuscus Cycloterinus ampliatus Cycloterinus caecus Cycloterinus canaliculatus Cycloterinus carinifer Cycloterinus erosus Cycloterinus foveatus Cycloterinus humeroalatus Cycloterinus microphthalmus Cycloterinus sphaeropterus Cycloterinus unicristatus Cycloterodes sechellarum Eucycloteres terreus Gonotrachelus quinquecarinatus Homalorrhynchus serripes Homalorrhynchus rubricatus Homalorrhynchus verschaffeltiae Phaenicobates alatus Phaenicobates albosetosus Phaenicobates curvipes Phaenicobates cuspidatus Phaenicobates cylindricus Phaenicobates depressirostris Phaenicobates duplovestitus Phaenicobates flexirostris Phoenicobates fortirostris Phaenicobates foveiventris Phaenicobates gibbirostris Phaenicobates hispidulus

Range (km2) 5 5 10 20 5 50 800 300 10 5 100 300 920 1 100 20 10 300 300 300 50 300 10 300 320 20 300 300 300

Islands 1 1 1 1 1 1 2 2 1 1 1 1 3 1 1 1 1 4 2 2 1 2 1 2 3 1 2 2 2 5 5 10 20 5 10 20 30 5 5 30 30 20 1 20 10 10 30 30 30 30 20 10 30 20 30 30 40 30

Area

>300m >500m high forest >500m 300m >300m 500 >300m >500m >500m

Habitat Lodocea maldivica 550m >500m >500m 250m >300m >250m >500m >600m 500m high forest 500m 250-500m lowland >300m >500m 600m

Seychelles Red List CR (B1,2a,biii) (EX?) LC CR (B1a,biii) (EX?) EN (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) CR (B1a,biii) (EX?) CR (B2a,biii) (EX?) LC LC LC EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B2a,biii) (EX?) CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) CR (B1a,biii) (EX?) CR (B1a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2abiii) (EX?) EN (B1,2abiii) (EX?) CR (B1a,biii) (EX?) EN (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) LC CR (B1a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?)

229

Species Phaenicobates lodoiceae Phaenicobates nigrolimbatus Phaenicobates parallelus Phaenicobates pandanicola Phaenicobates peropacus Phaenicobates praslinensis Phaenicobates rufitarsis Phaenicobates simplex Phaenicobates sebertensis Phaenicobates stevensoniae Phaenicobates stricticollis Phaenicobates tenuis Phaenicobates vittatus Phaenicobatopsis echinatus Phaenicobatopsis septiceps Phoenicogenus inermis Scytha aldabrana Sphodrias magdaloides Sycites pilicornis Tanyomus palmicola Rhynchaenus spissus Endaeus anthonomoides Endaeus curvimanus Endaeopsis delicatus Crossotarsus externedentatus Platypus hintzi Platypus lepidus Platypus parallelus Coccotrypes bicolor

Range (km2) 800 920 20 920 300 5 10 300 5 300 930 920 300 300 100 5 100 5 10 20 80000 80000 80000 5 5 5 600 300 5

Islands 2 3 1 3 2 1 1 2 1 2 4 3 2 2 1 1 1 1 1 1 4 2 3 1 1 1 2 2 1 20 20 15 25 30 5 10 15 5 20 15 15 30 30 20 5 100 5 10 20 100 100 100 5 5 10 15 50 10

Area

Habitat >250m >250m >300m >250m >500m 250m 600m >300m 350m >300m 250m high forests >300m >300m 250m lowland 500m 600m >500m 250m

palms

>300m 500m

Habitat 700m

231

600 300 80000 300 150 5 20 10 2 300 150 150 930 940 80000 80000 5 80000 5 80000 40000 10 250 10

2 2 7 2 1 1 1-2 2 1 2 1 1 3 5 2 7 1 5 1 7 2 1 2 1 2 2

Cillaeus opaculus Cillaeus subplagiatus

300 40000

Range (km2)

Islands

Species Allochotes praslinensis Anthriboclerus scotti Necrobia rufipes Pallenis laterisignatus Platyclerus planatus Steocylidrus dimidiatus Stenocylidrus glaber Tarsostenus univittatus Family MELYRIDAE Laius sericatus Malthacodes cioides Pelochrus takamataensis Pachyebaeus aldabraensis Family NITIDULIDAE Brachypeplus aequalis Brachypeplus notatus Carpophilus angustatus Carpophilus dimidiatus Carpophilus fusciceps Carpophilus hemipterus Carpophilus scotti Urophorus humeralis Urophorus foveicollis Cillaeus confusus Cillaeus megacephalus Cillaeus micros 10 20

30 20 5 35 5 20 10 30 20 10 15 5

2 30 150 150

10 10 50 20 100 5 10 10

Area

DD DD DD DD

Seychelles Red List LC LC DD EN (B1,2a,biii) (EX?) DD CR (B1,2a,biii) (EX?) LC CR (B1a,biii) (EX?)

LC LC LC 500m 500m 300m coastal 300m lowland >250m 250m 300m lowland >300m 400m

236

Species Dimerapterocis apterus Ennearthron pulchellum Ennearthron cucullatum Paratrichapus sechellarum Tropicis flexicarinatus Tropicis brevicarinatus Xylographus seychellensis Family MELANDRYIDAE Stictodrya longipennis Mycteromimus insularis Family COLYDIIDAE Cicones scotti Cicones compactus Colobicones singularis Diplotoma capito Ditoma cavicollis Lascotonus scotti Mecedanum sp. Neotrichus gardineri Neotrichus parallelocollis Paralyreus scotti Pycnomerus confertus Xuthia sicana Family MONOMMIDAE Monomma pruinosum Family TENEBRIONIDAE Alphitobius crenatus Alphitobius laevigatus Amarygmus seychellensis 500m >250m 500m >500m >300m >300m

237

Species Bradymerus aspericollis Bradymerus hispidus Bradymerus scotti Bradymerus seychellensis Cacoplesia viriditincta ‘Cacoplesia’ annulipes Camarothelops braueri Camarothelops scotti Cryphaeus capreolus Cylindrosia foveifrons Diphyrrhynchus effeminatus Diphyrrhynchus fryeri Enicmosoma punctum Epiphaleria pallida Eutochia pulla Gnathelops chatayi Gonocephalum alticola seychellense Gonocephalum peregrinum Gonocephalum micantipenne Gonocephalum simplex aldabraense Heterophyllus atomus Mahena cuprea Microcrypticus variegatus Opatropis blairi Palorus mahenus Palorus praslinensis Platydema inaequidens seychellarum Plesioderes madagascariensis Pseudhadrus braueri

Range (km2) 150 300 100 930 5 100 300 80000 1000 100 80000 100 300 80000 920 920 1000 150 40000 150 5 100 100 2 1 5 300 80000 5

Islands 1 2 1 3 1 1 2 3 5 1 4 1 2 4 3 2 6 1 8 1 1 1 1 1 1 1 3 6 1 150 10 10 20 5 10 30 160 50 15 50 100 30 160 30 30 60 150 200 160 5 15 100 2 1 5 30 170 10

Area

500m

Habitat lowland 500m >300m 300m >300m 250m lowland

lowland lowland

Seychelles Red List EN (B1,2a,biii) (EX?) VU (D2) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) DD DD DD

Habitat >400m lowland 300m >600m >300m

239

Species Bikasha tenuipunctata Chaetocnema sundara Longitarsus gardineri Pratima costata Pratima variabilis Seychellaltica gardineri Seychellaltica krishna Seychellaltica mahensis Seychellaltica praslinensis Pachymerus gonager Spermophagus convolvuli Aspidomorpha apicalis Notosacantha lila Eka nigra Keeta aldabrana Keeta fryeri Rhyparidula insularis Rhyparida scotti Rhypardia seychellensis Diacantha unifasciata Nesohispa lambacrias Rhabdotohispa scotti

Range (km2) 80000 10 5 10 300 10 300 100 10 10 150 80000 300 10 100 150 150 300 100 300 300 30

Islands 3 1 1 1 2 1 2 1 1 1 1 2 2 1 1 1 1 2 1 1 2 1 100 5 5 5 20 5 20 15 5 10 100 100 15 10 100 100 100 20 10 20 10 10

Area

Habitat lowland lowland Tournefortia argentea 600m 600m 600m >500m >400m 250m lowland lowland 300m 300m palms >500m

Seychelles Red List LC EX? DD CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) CR (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) DD DD DD LC LC DD LC LC LC EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) EN (B1,2a,biii) (EX?) LC CR (B1a,biii) (EX?)

240

241

Index A Abacetus 38, 41, 212 abbotti 146 abdominale 12, 22, 26, 211 abnormalis 22, 23 Abraeomorphus 45, 46, 49, 213 Abraeus 48 abruptus 156 Acalles 141, 226 achardianum 73, 218 Achoragus 135, 225 aciculatus 42 acminatum 142, 226 Acritus 51, 52 Acrotona 61, 62, 215 Acrotrichis 56, 214 Actidium 56, 214 Actinopteryx 56, 214 acuminata 56, 214 acuminatus 12, 16, 17, 18, 175, 210, 235 Acupalpus 42 acutispina 20 addendus 12, 16, 18, 210 Adelocera 92, 220 Adephaga 6 Aderidae 10, 203, 239 Aderus 203, 239 Adoretus 85, 219 adspersus 146, 228 advena 168, 169, 233 aedificator 130 Aeletes 45, 46, 51, 53, 213 aenescens 84, 85, 219 Aeoloides 92, 220 aepyornithidorum 62 aequalis 66, 92, 93, 98, 162, 216, 220, 222, 232

aethiops 136, 176, 180, 225, 235 Aethriostoma 97

affinis 155 africanus 12, 14, 15, 18, 64, 155, 210, 215 Agrilus 88 Agrypninae 91 Agrypnus 92, 93, 220 Ahasverus 168, 169, 233 alacteus 38, 41, 212 alatus 148, 229 Alaus 93, 221 albofasciatus 183, 184 albopubens 128, 224 albosetosus 148, 229 albosignata 125, 224 aldabraensis 161, 232 aldabrana 150, 200, 207, 208, 230, 240 aldabrensis 83, 92, 94, 129, 219, 221, 224 aldabrica 39, 57, 214 Aldabrica 87, 220 aldabricus 12, 14, 15, 17, 210 aldabrum 144, 227 Aleochara 61, 62, 215 Aleocharinae 61, 78 Aleocharini 61 algarum 45, 52, 53, 213 Alindra 158, 231 allacteus 38, 41, 212 Alleculinae 192 Allochotes 159, 232 alloeus 135, 136, 137, 226 Allotrochus 65, 216 alluaudi 38, 42, 47, 49, 65, 67, 72, 77, 87, 88, 91, 95, 99, 100, 131, 173, 174, 213, 216, 218, 220, 221, 222, 224, 234 alluaudianus 12, 24, 26, 211 Alphitobius 192, 193, 194, 237 Alticinae 204 alticola 193, 196, 238 amabilis 63 Amarodytes 17 Amarygmini 193

242

Amarygmus 193, 194, 237 ambiguus 45, 48, 51, 213 Amblysterna 87, 88 amitina 138, 226 amphora 112 ampliatus 147, 229 Anagaricophilus 109, 110, 111, 113, 223 Anamorphinae 109 Ananca 200, 201, 239 Ancaeus 66 Anchomenus 43 andrewesi 155 androyanus 40, 213 angulicaput 106, 107, 223 angustatus 162, 163, 232 Anillina 38 Anillus 40 Anisodactylus 42 annulipes 193, 195, 238 Anobiidae 8, 9, 99, 102, 157, 222 Anobiinae 99, 101 Anomoderus 129, 224 Anotylus 67, 216 antennalis 92, 95, 221 Anthicidae 10, 35, 201, 202, 239 Anthicinae 201 anthicopsis 135, 225 anthonomoides 151, 230 Anthribidae 10, 37, 134, 135, 137, 138, 139 156, 157 Anthriboclerus 159, 232 Apate 98, 222 Apatini 98 Aphanocephalus 175, 176, 235 Apheloplectus 71, 217 Aphodiinae 80, 81 Aphthona 204, 239 apicalis 207, 240 Apomecyna 131, 132 Apoplectus 71, 217 apricarius 52, 54 apterus 185, 187, 237 aquilinus 182, 236 Araecerus 135, 225 Arganus 90, 220 Argiloborus 38, 40, 212 argutula 116, 122, 123, 224 armatus 58, 59, 214

Arpagonus 65, 216 arrowi 177, 179, 235 Arthrolips 181, 182, 235 ascendens 38, 40, 212 asperata 64, 215 aspericollis 193, 194, 195, 238 Aspidiphorus 103, 104, 223 Aspidomorpha 207, 240 Astenus 68, 69, 216 Astigis 41 astovensis 84, 219 Ataenius 81, 82, 219 Atanygnathus 74, 75, 218 ater 96, 97, 222 Atheta 62, 63, 215 Athetini 62 atomarius 45, 46, 49, 213 atomus 13, 24, 25, 76, 194, 197, 211, 218, 238

atricapillus 21 Attagenus 96, 97, 221 Attelabidae 10, 37, 134, 137 attenuata 196 attenuatus 199, 239 Augasmus 106, 108, 223 Aulacodytes 16 Aulacoryssus 38, 42, 43 Aulonothroscus 91, 220 aurichalcea 83, 84, 219 aurostriatus 146, 228 Axiocerylon 173, 174, 234 B Bacanius 45, 46, 48, 49, 51, 213 badius 156 barbatum 127, 224 Barianus 146, 228 Baridinae 140 Baridomorpha 140, 226 Baris 140, 226 basicollis 42 Batraxis 71, 217 Batrisitae 70 Batrisodes 70, 72, 217 Belionota 87, 220 Bembediini 38

243

Bembedinia 38 Bembibium 40 bergrothi 12, 19, 210 Berosus 12, 19, 20, 26, 34, 210, 211 biacutus 185, 186, 236 Bibloporina 71 bibula 38, 40, 213 bibulus 38, 40 bicolor 71, 72, 153, 155, 217, 230 bicoloripes 119 bidenticulatus 12, 20, 211 Bidessus 15, 16, 17 bifasciata 126, 224 biformis 144, 228 biguttatus 27, 163 Bikasha 204, 205, 239, 240 biloba 130 bilobus 130, 224 bilunatus 44, 213 binotatus 175, 176, 235 Biophytus 106, 108, 223 biperforatus 13, 27, 28, 29, 212 bipustulatus 167 birmanus 154 bisignatus 38, 41, 76, 212 bistrigifrons 52 blairi 193, 198, 238 Blapimorpha 193 Bledius 67, 155, 167 Bolitochara 62, 63, 215 Bolitocharina 62 bolus 135, 225 Bostrichidae 8, 9, 67, 97, 99, 147, 157, 160, 175, 184, 216, 222, 229 Bostrichiformia 67, 147, 216, 229 Bostrichinae 97 Bostrichini 97 Bostrichioformia 8, 9, 96 Bostrichoidea 8, 67, 96, 147, 216, 229 Bostrichus 155 Bostrychidae 37, 60, 108, 171, 172, 184 Bothrideres 157, 231 Bothrideridae 8, 9, 67, 147, 157, 216, 229, 231

Bourdonnaisia 12, 20, 26, 29, 30, 31, 211 Brachininae 39 Brachinini 38 Brachycyclus 146, 228

Brachyglutini 71 Brachypeplus 161, 162, 232 Bradymerus 193, 194, 238 brasiliensis 47, 52, 53, 54, 213 braueri 115, 116, 117, 139, 193, 195, 198, 223, 226, 238 Brentidae 10, 35, 37, 134, 137, 156 brevicarinatus 185, 188, 237 brevicornis 40, 96, 97, 213, 222 brevipennis 71, 72, 217 brevis 165, 233 breviusculum 143, 227 breviusculus 162, 166, 233 Brontinae 168, 169 Bruchinae 204, 206 brullei 141, 226 Brumoides 177 Brundinia 62, 63, 215 brunnea 56, 214 brunneum 57, 214 brunneus 97, 98, 222 bucco 155 Buprestidae 6, 7, 35, 86, 88, 220 Buprestoidea 6, 86 Byrroidea 8, 89 Bythinoplectini 71 C Caccodes 96, 221 Cacoplesia 193, 195, 238 cacuminum 185, 187, 236 Cadandra 139 cadaverinus 97 caecus 67, 147, 216, 229 Caenocara 100, 222 Cafius 74, 75, 76, 218 calciger 46, 50, 213 Caldanra 138, 139 caliculus 152 caliginosa 144, 228 Callida 38, 44 Callidia 44 Callidium 127, 128 Callirhipidae 7, 8, 37, 89, 220 Callirrhipis 89, 220 Camarothelops 192, 193, 195, 238

244

Camptorrhinus 141, 226 canaliculatus 147, 229 Cantharidae 7, 8, 32, 89, 95, 96, 160, 161, 201, 221 Canthariidae 35 Canthydrus 13, 27, 211 capitatus 12, 15, 18, 210 capito 190, 191, 237 capreolus 192, 195, 238 capucinus 98 Carabidae 6, 7, 35, 37, 38, 44, 45, 89, 91, 97, 105, 212 Carabinae 35 Carcinops 47, 49, 50, 213 cardamomi 153, 231 cardinalis 177, 179 Cardiotarsus 92, 93, 221 Cardiphorus 93, 221 Caricus 38, 41 carinata 71, 72, 217 carinatus 13, 24, 25, 30, 211 carinifer 147, 229 carpophagus 153, 231 Carpophilinae 161 Carpophilus 161, 162, 163, 164, 232 Casnoidea 38, 43, 44, 212 Cassida 207 Cassidinae 204, 207, 209 castanaeum 193 castaneum 56, 193, 199 castaneus 66, 216 casteum 56, 214 caudatus 70, 72, 217 cavicolle 173, 174, 234 cavicollis 190, 191, 237 cavifrons 192, 199, 239 cephalotes 69 Cephenniini 57 Cephennium 58, 214 Cerambycidae 10, 35, 125, 128, 133, 134, 157, 224, 241 Cerambycinae 127 Cerambyx 127, 130 Ceratus 90, 220 Cercyon 12, 19, 21, 26, 29, 30, 31, 32, 211 Cerennea 71, 72, 217 Ceresium 128, 224 Cermabycidae 36

cervinus 136, 158, 225 Cerylon 173, 174, 234 Cerylonidae 8, 9, 172, 175, 234 Ceryloninae 172 Cetonia 84 Cetoniinae 80, 81, 83 ceylanensis 68, 70, 217 Chaerorrhinodes 142, 226 Chaetocnema 204, 205, 206, 209, 240 chalceus 24 championi 172, 234 Chasmogenus 12, 22, 26, 32, 211 chatayi 193, 196, 238 Cheilomenes 177, 235 chermesina 177, 179, 235 Chilocorus 176, 177, 178 Chiridopsis 207 Chlaeniini 38 Chlaenites 41, 212 Chlaenius 38, 41, 212 Choragus 135, 225 Chrysobothrix 87, 220 Chrysomelidae 10, 36, 203, 209, 239 Chrysomeloidea 10 chrysopyga 61, 63, 215 Cicindela 39 Cicindelinae 37, 39, 45 Cicindellinae 35, 37, 39 Cicones 190, 237 Ciidae 8, 10, 34, 36, 184, 188, 236 Cilea 77 Cillaeus 161, 165, 232 cinctus 14 cinnamomi 153 cioides 160, 232 circumductus 28 Cis 185, 186, 187, 236 Cistelidae 35, 192 clavicornis 203, 239 clavigera 143, 227 Clavilispinina 65 Clavispinus 66, 216 Cleranthribus 135, 225 Cleridae 8, 9, 32, 36, 89, 95, 96, 158, 160, 161, 201, 231 Cleroidea 8 Clinocercyon 21 Cnodaloninae 193

245

coarcticollis 61, 63, 215 Coccinellidae 8, 9, 36, 176, 181, 235 coccinelloides 109, 110, 111, 223 Coccotrypes 153, 154, 230, 231 Coelostoma 12, 19, 22, 26, 33, 211 Coenonica 62, 63, 215 cognata 99, 101, 222 coleae 114, 115, 116, 120, 121, 123, 223 Colobicones 190, 237 Colydidae 36 Colydiidae 10, 96, 157, 158, 168, 175, 176, 184, 190, 191, 200, 237 Colydiinae 190 colydiopsis 135, 225 Comaserica 85, 219 communis 100, 101, 154, 222 compactus 156, 190, 237 compressicollis 144, 227 Conarthrus 142 concinna 57, 214 concinnulus 169, 233 concinuum 41, 212 concinuus 41, 212 confertus 190, 191, 237 confinis 13, 28, 29, 204, 205, 212 confluum 143, 227 confragosus 155, 231 confusus 155, 161, 165, 232 congener 98, 222 congestus 13 conicicephala 144, 228 conicicolle 144, 227 conigerum 97, 98, 222 Conipora 103 conjiciens 12, 21, 30, 211 Conoderinae 92, 140, 141 Conoderus 92, 93, 221 Conosmoa 77 constrictus 177, 179, 235 Contexta 136, 225 contingens 164 Conurus 77 convexicollis 202, 239 convexiuscula 144, 171, 228, 234 convolvuli 206, 240 Copelatus 12, 14, 17, 29, 30, 33, 210 Coproporus 76, 77, 218 Coptops 130, 224, 241

Coptus 142, 227 coquereli 6, 85, 86, 129, 220 corallicola 75, 76, 218 cordithorax 58, 59, 214 coriaria 61, 63, 215 cornuta 58, 59, 214 Corthylini 153 Corylophidae 8, 9, 36, 105, 181, 183, 235 Corynaecia 136, 225 Cosmopolites 138, 226 Cossonus 142, 227 costata 204, 205, 240 costulata 158, 231 costulatus 167 crassifrons 145, 228 crassipes 144, 228 crassiusculus 156 Cratopus 146, 147, 228 crenata 58, 59, 214 crenatostiata 193 crenatostriatus 19 crenatus 155, 193, 194, 231, 237 crenulata 38 cribricollis 94, 221 Crossotarsus 152, 230 crowsoni 13, 27, 29, 211 Cryphaeus 192, 195, 238 Cryphalomorphus 155 Cryphalus 154, 231 Crypticini 193 cryptogonoides 177, 180, 235 Cryptolestes 170 Cryptomorpha 168 Cryptophagidae 8, 9, 37, 45, 89, 91, 97, 105, 170, 171, 172, 234 Cryptorhynchinae 140, 141, 147 Cryptorrhynchideus 141, 142, 226 Cryptorrhynchus 142, 226 Cucujidae 8, 9, 36, 60, 99, 105, 108, 170, 171, 172, 175, 184 Cucujiformia 8, 102, 157 Cucujoidea 8 cucullatum 185, 187, 237 cuprea 25, 193, 197, 238 cupreus 25 Curculionidae 10, 37, 134, 135, 138, 139, 140, 146, 152, 156, 157 Curculioninae 140, 151

246

Curculionoidea 10, 36, 134, 139, 156, 225, 241 curticollis 65, 216 curtipenne 157 curtulum 173, 174, 234 curtus 92, 94, 221 curvimanus 152, 230 curvipes 148, 229 cuspidatus 12, 20, 148, 211, 229 Cyathigerini 71 Cybister 12, 14, 15, 18, 210 Cybisteter 15 Cybocephalinae 161, 165 Cybocephalus 161, 165, 167, 233 Cycloterinus 147, 148, 229 Cylas 138 cylindricus 149, 229 Cylindrosia 193, 195, 238 Cylistolister 47 Cylistosoma 45, 46, 47, 213 cyperi 153, 231 Cyphagogini 137 Cyphogogus 138, 226 Cyphon 13, 27, 28, 29, 30, 212 Cyrtomychus 109, 110, 111, 223 Cyrtoscydmini 58 D dactyliperda 153 Dactylosimus 92, 94, 221 Dactylosternum 12, 19, 22, 23, 26, 30, 31, 211

Dalotia 61, 63, 215 daubani 46, 51, 53, 213 Daubania 181, 182, 236 davidsoni 46, 51, 53, 213 debilicornis 68, 70, 217 declivis 153, 231 decoratus 166 degayanum 13, 25, 26, 211 degressa 114, 115, 116, 120, 224 dejeani 126 delicatus 152, 230 demelti 133, 225 Dendroctonomorphus 142, 227 Dendrophilus 49 dentatus 132, 225

denticulata 25 denticulatus 169, 233 dentipes 52 depressipennis 68, 69, 216 depressirostris 149, 229 depressus 167 Dermestes 96, 97, 222 Dermestidae 8, 9, 37, 45, 89, 91, 96, 97, 105, 221 desjardinsi 109, 111, 112, 114, 168, 169, 223 Diacantha 208, 240 Diaperinae 192 Diaperini 194 Diatypus 38, 41 Dibelonetes 68, 69, 216 Dicercomorpha 88 Dichiropsis 38, 41 Dicrepidiinae 91 diegensis 152 Diestota 62, 63, 215 difformis 92, 94, 221 diffusa 38, 41, 212 diffusus 38, 41, 212 dilatus 155 dilutipennis 62, 215 dilutipes 75, 218 Dimerapterocis 185, 187, 237 Dimerini 71 dimidiaticollis 92, 93, 221 dimidiatus 136, 159, 160, 162, 163, 164, 225, 232 Dineutus 12, 18, 210 Dinoderinae 97 Dinoderus 98, 222 Diocalandra 139, 226 Diochus 75, 218 dionysia 179 Dioryche 42 Diphyrrhynchus 193, 195, 196, 238 Diplolophtus 87 Diplotoma 190, 191, 237 dirempta 114, 115, 116, 121, 224 Discoblax 126, 224 Discolomatidae 8, 9, 175, 235 discretus 154, 231 disjunctus 45, 47, 53, 54 dispar 167 disparilis 114, 115, 116, 118, 119, 223

247

Disteninae 125 distigma 176, 178 distinctus 90, 220 Ditoma 190, 191, 237 Dorcatoma 100, 222 Dorcatominae 99, 100 dorsalis 92, 94, 221 dorsata 87, 220 Dropoidea 89 Drosophila 2 Dryocaetes 154 Dryophthoridae 37, 134, 135, 138 Dryophthorus 139, 226 Dryopidae 8 Dryopoidea 8 Dryotribus 142, 143, 227 dubium 144, 227 dumetorum 144, 228 duplicatus 68, 69, 216 duplovestitus 149, 229 Dynastinae 80, 81, 84 Dysantini 193 Dysceladus 198 Dysnos 136, 225 Dytiscidae 6, 12, 13, 210 Dytiscus 15 E ecarinatus 139, 226 Eccoptopterus 154, 231 echinatus 150, 230 Edaphus 64, 78, 215, 216 Egadroma 38, 41, 42 Egaploa 38, 42 egregia 71, 217 Eidoreus 109, 111, 112, 114, 223 Eka 207, 208, 240 Elaphropus 38, 40, 212, 213 Elassochiton 83 Elastrus 92, 94, 221 Elateridae 7, 8, 36, 91, 192, 220 Elateriformia 6, 86 Elaterinae 91 Elateroidea 8, 90 elegans 71, 72, 217 Eleusinini 65

Eleusis 65, 66, 216 Elmidae 8, 12, 13, 18, 210 elongatulus 45, 46, 48 Endaeus 151, 152, 230 Endomychidae 8, 9, 36, 105, 109, 111, 113, 114, 223 Enicmosoma 193, 196, 238 Enicmus 183, 184, 236 Ennearthron 185, 187, 237 Enochrus 12, 23, 26, 32, 211 Enoplurus 20, 26, 34 Entiminae 140, 146 Eotachys 38, 41, 212 Epierus 49 Epiphaleria 193, 196, 238 Epitaphius 136, 225 Eretes 12, 15, 18, 33, 210 erichsoni 45, 47, 52, 53, 213 erosus 147, 229 erratus 142, 226 eruditus 154, 231 Espeson 65, 66, 78, 216 Esthesopinae 91 Euaesthetinae 61, 64, 78 Euchionellus 183, 184 Eucnemidae 7, 8, 90, 220 Eucneminae 90 Euconnus 58, 214 Eucycloteres 148, 229 Eugnoristus 139, 226 Euiridotaenia 87, 88, 220 Eulomalus 46, 50, 54, 213 eumelas 136, 225 Eumolpinae 204, 207, 209 Euops 137, 226 Euplectitae 70 Eupsasalis 138, 226 Eupsilobiinae 112, 113 Eurycratus 172, 234 Eurygeniinae 201 Eurygenius 201, 202, 239 euryphacus 41, 212 Eutochia 193, 196, 238 Euxestinae 173 Euxestus 173, 234 exarata 139, 226 excavatus 153, 231 excisipalpis 99, 100, 222

248

exiguus 40, 65, 66, 106, 107, 216, 223 eximius 96, 221 Exocentrus 132, 225 Exochomus 177, 178, 235 explanata 161, 167, 233 externedentatus 152, 230 exul 77, 218 F fairmairei 119 Falagria 61, 63, 215 Falagriini 61 Falsogastallus 99, 101, 222 Falsomordellistena 114, 115, 116, 119, 223 farquharensis 12, 16, 18, 210 fasciata 119 fasciculata 71, 72, 217 fasciculatus 135, 225 fauveli 132, 225 felicitas 58, 185, 186, 214, 236 femoratum 129, 224 ferrugineus 67, 155, 167 Figulus 79, 219 filiformis 90, 143, 220, 227 filum 145, 228 fimbriolatus 75, 218 flavescens 92, 94, 221 flavipes 98, 99, 119, 128, 177, 178, 222, 224, 235 flavocephala 62, 215 flavohumeralis 11, 13, 28, 29, 212 flexicarinatus 185, 188, 237 flexirostris 149, 229 formicarius 138 Fornax 90, 220 fortipunctata 204, 205, 239 fortirostris 149, 229 foveatus 147, 229 foveicollis 162, 164, 232 foveifrons 193, 195, 238 foveiventris 149, 229 fragilicornis 202, 239 frater 81, 219 frivolus 92, 94, 221 fructicola 12, 21, 211 frumenti 139, 226

fryeri 51, 87, 157, 196, 207, 208, 213, 220, 231, 238, 240 fulvipes 38, 42, 43, 212 fumata 184 fumator 66 funesta 61, 62, 215 furvus 154, 231 fusciceps 162, 164, 232 fuscipes 92, 93, 220 fuscovittatus 127, 224 fuscus 130, 147, 229 fusiforme 143, 227 G Gabrius 74, 75, 218 Gabronthus 75 gahani 177, 181, 235 Galerucinae 204, 208, 209 gardineri 12, 14, 17, 46, 47, 50, 92, 93, 173, 174, 190, 191, 204, 205, 206, 210, 213, 221, 234, 237, 240 Gastraulacinae 90 geminata 131, 132, 225 geminatus 16 Geoendomychus 109, 111, 112, 223 gerlachi 126, 224 germana 99, 101, 222 gibbirostris 149, 229 gigas 136, 225 glaber 159, 160, 232 glauca 125, 126, 224 Glaucytes 129 Glipa 114, 115, 116, 117, 123, 124, 223 Glipostenoda 114, 115, 116, 120, 121, 123, 223, 224 globosa 127 globosus 127, 173, 234 Glycyphana 83 Glyptomina 65 Gnathelops 193, 196, 238 Gnathidiini 194 gomyi 173, 175, 235 gonager 206, 240 gondati 38, 41, 212 Goniaceritae 70 Gonocephalum 193, 196, 197, 238

249

Gonodyrus 92, 94, 221 Gonotrachelus 148, 229 gothicus 99, 101, 222 goudoti 38, 41, 82, 212, 219 gracilipes 92, 93, 221 grande 84, 85, 219 graniger 141, 142, 226 granocostatus 141, 142, 226 granulipennis 85, 219 Graphelocharus 23 grinerae 180 griseoapicalis 119 griseolineata 119 griseovittatus 146, 228 grisescens 200, 201, 239 griseus 12, 15, 18, 210 grossinium 181, 183, 236 Gryphaenina 61 Gschwendtnerhydrus 15 Guignotites 15 Guignotus 15, 16 Gyrinidae 6, 12, 13, 18, 210 Gyrophaena 61, 63, 215 H Halacritus 45, 52, 53, 55, 213 Hapalips 172, 234 Haptoncus 162, 166, 233 Harpalinae 41 Harpalini 38 Harpalus 41 Helochares 12, 19, 22, 23, 24, 26, 32, 33, 211 hemipterus 162, 164, 232 Hemirhipinae 91 herculeanus 6, 192, 198, 239 Heterobostrychus 98, 222 Heteroceridae 8, 12, 13, 19, 210 heterocerus 77, 218 Heterocerus 12, 19, 210 Heterodes 92 Heterolitus 108 Heterophyllus 194, 197, 238 Himatinum 143, 227 hintzi 152, 230 hispidulus 149, 229 hispidus 193, 194, 238

Hispinae 204, 209 Hister 48, 49, 52 Histeridae 6, 7, 34, 37, 45, 54, 55, 86, 213 Holobus 61, 63, 215 Holotrochus 65 Homalorrhynchus 148, 229 Homalotini 62 Hormiscops 135, 136, 225 Hoshihananomia 114, 115, 116, 117, 118, 223 Hovatoma 126, 127 Hughia 71, 72, 217 humeralis 38, 39, 125, 162, 164, 212, 232 humeroalatus 148, 229 humerosa 130, 224 humilis 16 Hybosoridae 79, 80, 219 Hydraena 12, 19, 29, 30, 33, 210 Hydraenidae 6, 12, 13, 19, 210 Hydraenopsis 19 Hydrobaticus 23, 24, 33 Hydrocaticus 23 Hydroglyphus 12, 15, 16, 18, 210 Hydrophilidae 6, 12, 13, 19, 210 Hydrophiloidea 6, 31, 32, 45 Hydrovatus 12, 16, 17, 18, 31, 210 Hyllisia 133, 225, 241 Hyphalus 13, 27, 29, 32, 211 Hyphydrus 12, 16, 18, 31, 210 Hypocaccus 45, 47, 52, 53, 54, 213 Hypocyphtii 61 Hypolithus 42, 43 Hypopentathrum 143, 227 Hypothenemus 154, 155, 231 I Idiomelas 38, 42, 212 Idobrium 128, 129, 224 immaculatus 93 impressicollis 57, 66, 214 impressipennis 40, 213 impressus 12, 16, 18, 210 inaequidens 194, 198, 238 inarmatus 169, 233 incivilis 142, 227 incrustatus 143, 227 inermis 12, 20, 150, 211, 230

250

inflata 13, 25, 26, 211 Iniocyphini 71 Inopeplus 171, 234 inopinatus 48 insignis 185, 186, 236 instabilis 131, 224 insulaelongae 182, 235 insulana 63, 100, 215, 222 insulare 22, 157, 158, 231 insularis 38, 39, 61, 63, 64, 65, 71, 80, 85, 92, 94, 175, 176, 188, 189, 200, 207, 208, 213, 215, 216, 217, 221, 235, 237, 239, 240 insularius 13, 27, 28, 29, 212 insularum 58, 60, 214 interpunctatus 38, 42, 213 Iresiodes 129, 224, 241 irroreus 76, 218 Isocheilus 68, 69, 216 J Jacobsoniidae 8, 36, 96, 221 janaki 70 javanus 154, 231 johnstoni 87 jucundulus 38, 40, 41, 213 K Keeta 207, 208, 240 kraatzi 66, 155 krishna 204, 206, 240 Kuijtenous 80, 219 L Labarrus 81, 219 Laccophilus 12, 16, 17, 18, 210 lacteoguttatus 130 lacustris 75, 218 Laemophloeidae 8, 9, 170, 234 Laemophloeus 170, 234 laeta 95, 221 laeticollis 63, 215

laetulus 168, 169, 233 laetus 136, 225 laeviceps 80, 219 laevigatus 66, 193, 194, 237 laeviusculus 177, 178, 235 Lagriinae 192 Laius 11, 160, 232 lambacrias 209, 240 Lamia 130, 132 Lamiinae 130 Lampetis 87, 88, 220 Lampyridae 7, 8, 32, 35, 89, 95, 96, 160, 161, 201, 221 lareyniei 103 lareynii 103, 104, 223 Lascotonus 190, 191, 237 Lasiodactylus 162, 166, 167, 233 Lasioderma 99, 101 Lasiotrupis 143, 227 lateoblonga 99, 101, 222 laterisignatus 159, 232 Lathrididae 37 laticaput 172, 234 laticeps 81, 82, 219 laticolle 41, 42, 212 laticollis 12, 21, 41, 42, 154, 211, 231 latirostris 145, 228 latiusculus 142, 227 Latridiidae 8, 9, 183, 236 laxatus 52 leander 15 Lebiinae 43 Lebiini 38 leopardina 207 lepidus 152, 230 Leptacinus 74, 75, 218 Leptocera 129 Leptusa 62 Lepydnus 147, 228 Leucocelis 83 lewisi 52 Lewisium 181, 182, 236 Liagonum 38, 43, 212 licheneus 136, 225 Licininae 41 lila 207, 240 liliputianum 174 limbatus 70, 78, 217

251

Limnichidae 8, 13, 27, 211 lineare 56, 214 linearis 138, 139, 226 lineola 201 lineolatus 141, 226 Liopterus 14 Lispinina 65 Lispinodes 65, 66, 216 Lispinus 65, 66, 67, 216 litoralis 146, 228 lividus 81, 219 livornicus 22 lodoiceae 58, 60, 81, 82, 149, 215, 219, 230 lodoiceicola 145, 228 lodoiceivorus 143, 227 Lonchotus 84, 86, 219 longicolle 143, 227 longicollis 62, 71, 215, 217 longicornis 90, 220 longipennis 143, 188, 189, 227, 237 Longitarsus 204, 205, 240 longuis 173, 174, 234 Lophocateres 158 Lucanidae 6, 7, 37, 79, 80, 219 Luciola 95, 221 lunulatus 177, 180, 235 lutea 207 luteipes 136, 225 luteolus 162, 166, 233 lutosus 92, 93, 221 Lyctinae 97 Lyctus 97, 98, 222 Lymexylidae 8 lymexylon 139, 226 Lymexylonidae 36, 45, 89, 91, 97, 105, 157, 158, 231 Lymexyloniodea 8 Lymexylonoidea 67, 155, 167 M Macrotoma 126 maculata 84 madagascariensis 155, 167, 168, 193, 198, 231, 233, 238 madagassa 177, 180, 235 madecassa 119

madli 13, 27, 32, 125, 211 magdaloides 150, 230 magniceps 74, 75, 218 magnus 79, 219 maheana 64, 215 mahena 38, 43, 44, 87, 88, 114, 115, 116, 120, 220, 224 Mahena 193, 197, 238 Mahenes 132, 133, 225 mahense 73, 74, 96, 97, 218, 221 mahensis 12, 13, 18, 19, 20, 26, 27, 28, 29, 30, 33, 165, 185, 186, 204, 206, 210, 211, 212, 233, 236, 240 mahenus 90, 91, 92, 93, 198, 220, 221, 238 Malachiidae 11, 161 Malachiinae 160 Malthacodes 160, 232 mancus 156 marinus 67, 77, 216, 218 mascarensis 155 Mausoleopsis 83, 219 maxima 99, 102, 222 Mecedanum 190, 191, 237 medius 154, 231 Medon 68, 69, 70, 216 megacephalus 161, 165, 232 Megapenthes 92, 94, 221 Meioderus 182, 236 melanarius 68 melancholica 38, 39, 212 Melandryidae 36, 188, 189, 237 melanocephalus 92, 94, 221 melanophthalmus 19, 23, 24, 33 Melanoxanthus 92, 94, 221 Melarhinus 143, 227 Melasidae 36, 90, 91, 95 Melasinae 90 Melittoma 157, 158 Melittomma 157, 158 mellerborgi 139, 226 Melolontha 85 Melolonthinae 81, 84 Melyridae 8, 9, 32, 35, 89, 95, 96, 160, 161, 201, 232 Melyris 160 Mesocoelopsis 99, 101, 222 Mesothes 100, 222 Metadorcatoma 100, 222

252

Metatheca 100, 101, 222 Metaxya 63 Methydrus 23, 32 Metophthalmus 183, 184 micantipenne 193, 197, 238 Micracantha 132 microcephalum 143, 227 Microcrypticus 193, 197, 238 Microhimatium 143, 227 Microlara 12, 18, 29, 30, 31, 33, 210 Micronoemia 125, 126, 224 microphthalmus 148, 229 Microplatymerus 143, 157, 227 micros 161, 165, 232 microthorax 68, 69, 216 Microthyrea 83 Microtrupis 143, 227 mimetes 171, 234 mimeticus 143, 227 Mimogonus 65, 66 minimus 77, 165, 218, 233 minor 58, 59, 109, 110, 111, 146, 204, 205, 214, 223, 228, 239 minutissima 62, 215 minutissimus 182, 236 minutus 49, 98, 109, 111, 112, 162, 165, 166, 183, 184, 222, 223, 233, 236 Mirosternus 99, 100, 222 mixta 117 modesta 92, 220 mollis 12, 22, 26, 211 Molytinae 140, 147 Monanops 169 Monanus 168, 169, 233 monoceros 84, 219 Monomma 192, 237 Monommatidae 10, 191 Monommidae 191, 237 Monotoma 167, 168, 233 Monotomidae 8, 9, 36, 96, 157, 158, 167, 168, 175, 176, 191, 200, 233 monstrosus 112 montanum 60 monticola 100, 222 Mordella 114, 115, 117, 118, 119 Mordellaria 114, 115, 116, 118, 223 Mordellidae 10, 35, 114, 119, 122, 123, 124, 223

Mordellina 114, 115, 116, 121, 122, 224 Mordellini 114, 115, 116, 124 Mordellistena 114, 115, 116, 119, 120, 121, 122, 123, 124, 224 Mordellistenini 114, 115, 116, 121, 122, 124

morigerus 156 morstatti 156 motoensis 119 multifasciatus 133, 225 multivaga 140, 226 muriceus 142, 227 murina 136, 225 musae 138, 139, 226 muticus 146, 228 Mycetophagidae 8, 10, 37, 60, 99, 108, 171, 172, 175, 184, 236 Mychocerus 173, 174, 234 Mycterinae 188, 189 Mycteromimus 188, 189, 237 Mycterus 189 Myocaldanra 139, 226 Myothorax 162, 163, 164 Myriochila 38, 39, 212 Myriochile 39, 212 N Nacaeus 65, 66, 67, 216 natalensis 12, 23, 26, 32, 87, 211 nauticus 74, 75, 218 Necrobia 159, 232 neglectus 68, 216 nemoralis 145, 228 Neohydrocoptus 13, 27, 29, 212 Neosilusa 62, 63, 215 Neothesiastes 71, 72, 217 Neotrichus 173, 190, 191, 237 nepenthicola 147, 228 Nephus 180 Neseuthia 58, 59, 214 Nesiotus 106, 107, 223 Nesohispa 209, 240 Nesohoplias 85, 219 Nesolathrus 183, 184, 236 Nesotheca 99, 100, 101, 102, 222, 223 Nesotoxidium 73

253

Nethinius 125 nigra 207, 208, 240 nigriceps 12, 21, 30, 34, 38, 43, 211, 212 nigrifrons 12, 19, 23, 26, 211 nigripennis 68, 69, 71, 72, 217 nigritus 81, 82, 177, 178, 219 nigrofasciatum 73, 74, 218 nigrolimbatus 149, 230 nigromaculatus 178 nigroungulatus 136 Nilaphodius 81, 82, 219 nitescens 168, 170, 234 nitidicolle 129, 224 nitidifrons 67, 216 nitidior 161, 167, 233 nitidula 145, 228 Nitidulidae 8, 9, 32, 37, 161, 163, 167, 232 Nitidulinae 161, 166 nitidum 173, 174, 234 notatus 162, 232 Noteridae 6, 13, 27, 211 Notiobia 38, 41, 212 Notiophygidae 96, 157, 158, 168, 175, 176, 191, 200 Notophygidae 37 Notosacantha 207, 240 notula 13, 27, 211 nudicollis 12, 20, 211 O obesus 71, 217 obliquata 132 oblongosignatus 177, 180, 235 oblongus 155, 231 Obrium 129, 224 obscurellus 66, 216 obscurus 162, 166, 233 oceaniae 96, 221 oceanicus 75, 202, 218, 239 ocellaris 98 ochropezus 42 ochropterus 164 Octomicrus 71, 72, 217 ocularis 162, 166, 233 oculatus 109, 111, 112, 223 Odacanthini 38

Oedemeridae 10, 200, 239 Oedmeridae 36 Olenecamptus 130, 224, 241 Olibrus 108 Oligota 63 Omaliinae 61, 64 Omobathus 71, 72, 217 omostigma 39 Oochlaenius 38, 41 Oochleanius 41 opaculus 161, 165, 232 Opatropis 198, 238 Ophionea 43 orientalis 144, 227 ornatus 135, 169, 225, 233 Orphilus 96, 222 Orphininae 81 Orthoperus 182, 236 Orthotemnus 143, 227 Oryctes 84, 219 oryzae 138 Oryzaephilus 168, 169 Osoriinae 61, 65, 78 Osoriini 65 Osorius 65, 67, 216 Ostomidae 36, 96, 157, 158, 168, 175, 176, 191, 200 Ostomopsis 173, 234 Otomopsinae 173 ovatula 56, 214 owas 87, 88, 220 Oxacis 200, 201, 239 Oxycetonia 83, 219 Oxydema 143, 227 Oxyomus 82 Oxytelinae 61, 67 Oxythyrea 83, 219 P Pachmerus 206 Pachycallida 38, 44, 212 Pachyderinae 91 Pachydinodes 38, 41 Pachyebaeus 160, 161, 232 Pactolinus 48, 54, 55 Paederinae 61, 68, 78

254

Palaminus 68, 70, 217 palans 49 Pallenis 159, 232 pallida 193, 196, 238 pallidus 154, 196, 231 palmarum 81, 82, 219 palmicola 151, 230 Palorus 193, 198, 238 palustris 67, 68, 216 Panaphantina 71 pandanae 144, 227 pandanicola 149 pandanorum 12, 14, 17, 30, 210 pandicola 149, 230 Paracymus 12, 24, 26, 35, 211 Paracynus 24 Paracyphea 61, 62, 64, 215 Paradandamis 127, 224 Paragonus 65 parallelocollis 173, 190, 191, 237 parallelus 48, 130, 145, 149, 152, 185, 186, 228, 230, 236 Paralocus 127, 224 Paralyreus 190, 191, 237 Paranillus 38, 39, 213 Paraphloeostiba 65, 216 Parastasia 6, 85, 86, 220 Paratrichapus 185, 188, 237 Paratrogoderma 96, 97, 221 parcesquamosus 146 Parischius 108 parki 173, 234 Paromalus 49, 50, 54 Paroosternum 13, 25, 26, 31, 32, 211 particularis 112 partilis 114, 115, 116, 119, 223 parvulus 23 parvus 154, 231 patruelis 162 pavoninus 38, 42, 213 peculiaris 100, 222 pedestris 196 pedicularius 77, 218 Pedilidae 35 Pedini 193 peliomerus 76, 218 Pelocatus 14 Pelochrus 160, 161, 232

pennifer 68, 70, 217 Pentagonica 38, 43, 212 Pentagonicini 38 Pentarthrum 143, 144, 227 peregrinum 193, 197, 238 peregrinus 76, 218 perexigua 58, 59, 214 perexiguus 103, 104, 223 perforans 155, 231 Perigona 38, 43, 212 Perigonini 38 perigrinator 114, 115, 116, 117, 223 peringueyi 17 Perissosoma 84, 85, 219 permixtus 52 peropacus 149, 230 perparvulum 174, 234 perplexa 39, 212 perrieri 38, 43, 44, 212 Petalium 100, 102, 223 peyrierasi 66, 67, 174, 216 Phaenicobates 148, 149, 150, 229, 230 Phaenicobatopsis 150, 230 Phaenocephalinae 106, 107 Phaenocephalus 107 Phaenomerus 141, 226 Phaeocrous 80 Phalacratomus 106, 107, 223 Phalacridae 8, 9, 36, 37, 60, 99, 106, 108, 171, 172, 175, 184, 223 Phalacrinae 106 phalacrodies 173, 234 Phaleria 196 Phaleriini 193 phantasma 71, 72, 217 Pheropsophus 38, 39, 212, 213 Philhydrus 22, 23 philiberti 89, 220 Philonthus 74, 75, 76, 78, 218 Philothermus 173, 174, 175, 235 Philydrus 22, 23 Phlaeobius 136, 225 Phlaeophagosoma 144, 227 Phloeonomus 65, 78 Phlyctenolotis 177, 179, 235 Phoenicobates 148, 149, 229 Phoenicogenus 150, 230 Phrenapatinae 192

255

Physorhininae 92 picaultium 181, 183, 236 picea 71, 73, 98, 217, 222 piceus 74, 75, 136, 155, 218, 226 pictum 74 pictus 162, 167, 233 pilicornis 150, 230 piligera 143, 227 pilosellus 87, 88, 220 piscarius 52 Placonotus 170, 234 Placusa 61, 64, 215 Placusini 61 planatus 159, 232 Platyclerus 159, 232 Platydema 194, 198, 238 Platygnathus 126, 224 Platylister 46, 47, 213 Platylomalus 46, 47, 49, 50, 213 Platymetopus 38, 42, 213 Platyninae 43 Platypodinae 134, 137, 140, 152 Platypus 152, 230 Platysoma 47, 55 Pleganophorinae 112 Plesioderes 193, 198, 238 plicata 61, 63, 215 plutonus 177, 179, 235 polita 58, 59, 145, 167, 168, 214, 228, 233 politissimus 170, 234 politulus 66, 216 Polyderis 40 Polyphaga 6, 45, 78 Polytus 139, 226 Porthmidius 92, 94, 95, 221 posticus 12, 17, 18, 210 Potergus 90, 220 prasina 87, 220 praslinense 73, 74, 218 praslinensis 100, 102, 150, 159, 185, 186, 198, 204, 206, 223, 230, 232, 236, 238, 240 Praslinia 174 Praslirylon 173, 174, 234 Pratima 204, 205, 240 Pria 161, 167, 233 Prioninae 126 Proeces 144, 227

prolongatus 20 Prolycaon 90, 220 Propalticidae 8, 9, 171, 234 Propalticus 60, 99, 108, 171, 172, 175, 184, 234

proprior 170, 234 Propsephus 91, 95, 221 Prosoplus 132, 225 Prostominia 171, 234 Protaetia 83, 84, 219 Protomelittomma 157, 231 providenciae 83 pruinosum 192, 237 pruinosus 56, 214 Psammoecus 168, 170, 234 Pselaphiinae 61 Pselaphinae 37, 70 Psephus 95 Pseudalexia 112 Pseudespeson 66, 78 Pseudhadrus 193, 198, 238, 239 Pseudocastalia 87 Pseudocentrus 132 Pseudomordellistena 122 Pseudopaussus 112 Pseudosiopelus 38, 43 Ptenidium 56, 57, 214 Pterolophia 131, 224 Pterostichinae 41 Pterostichini 38 Ptiliidae 6, 7, 36, 56, 57, 214 Ptiliodes 56, 214 Ptiliolum 56, 57, 214 Ptilodactyla 11, 89, 220 Ptilodactylidae 7, 8, 11, 37, 89, 220 Ptinella 57, 214 Ptinellodes 57, 214 Ptinidae 36, 102, 113 Ptininae 99, 100 Ptinus 99, 100, 101, 222 puberulus 92, 94 pubescens 143, 227 pulchellum 185, 187, 237 pulchellus 14, 38, 43, 109, 111, 213, 223 pulla 193, 196, 238 Pullus 177, 179, 235 Pulposipes 6, 192, 198, 239 punctatellus 70, 217

256

punctatissimum 143, 227 puncticeps 90, 143, 220, 227 puncticollis 63, 215 punctipennis 71, 73, 75, 217, 218 punctulatum 12, 22, 211 punctum 193, 196, 238 pusilloides 170 pusillus 158 pustulosus 136, 225 Pycnomerinae 190 Pycnomerus 190, 191, 237 pygmaeum 12, 23, 26, 211 pygmaeus 81, 83, 153, 219 Pyrochroidae 10 Q quadricollis 133, 225 quadriplagiatus 175, 176, 235 quattuordecimstriata 49 quinquecarinatus 148, 229 quinssyanus 182, 236 R Regimbartia 13, 25, 26, 211 Remus 75, 76, 218 reticulatum 56, 214 reticulatus 76, 218 retithorax 185, 187, 236 Rhabdotohispa 209, 240 Rhamphini 151 Rhantaticus 13 Rhetogenes 142, 226 Rhipidandrini 194 Rhipidandrus 194, 199, 239 Rhizophagidae 167 Rhizophagus 167 rhombophorus 48 Rhynchaenus 151, 230 Rhyncolosoma 144, 227 Rhyparida 207, 208, 240 Rhyparidula 207, 208, 240 Rhypobius 182, 236 Rhyssemus 81, 82, 219 richteri 45, 46, 47, 213

ritsemae 81, 82, 219 rivulorum 12, 17, 18, 31, 210 robusticollis 66, 216 rochonianum 181, 183, 236 Rodolia 177, 179, 235 rombophorus 45, 46, 48, 213 Ropica 131, 225 roslanium 181, 183, 236 rouyeri 112 rubricatus 148, 229 rubripes 49 rudepunctata 62, 215 rufescens 56, 214 rufipes 145, 159, 228, 232 rufitarse 22 rufitarsis 150, 230 rufiventris 77, 218 rufoplagiata 38, 44, 212 rufotestaceum 57, 214 rugicollis 137, 226 Rugilus 68, 70, 217 rugipenne 143, 227 rugosicollis 129, 224 rugulosa 100, 101, 222 rusticum 12, 22, 211 Rutelinae 80, 81, 85 S Sacium 181, 183, 236 Salpingidae 9, 171, 234 Santalus 45, 46, 48 Saperda 130, 131 Sapintus 202, 239 Saprinus 45, 47, 52, 53, 213 Saprosites 81, 82, 83, 219 Sarothrias 96, 221 scabripennis 200, 239 scabrosa 11, 89, 220 Scaphididae 35 Scaphidiinae 61 Scaphobaeocera 73, 218 Scaphosoma 73, 74, 218 Scarabaeidae 6, 7, 37, 79, 80, 219 Scarabaeiformia 6, 7, 79 Scarabaeoidea 6, 79 Sciatrophus 147, 229

257

Sciretinus 136, 225 Scirtes 11, 13, 27, 28, 29, 212 Scirtidae 6, 13, 27, 212 Scirtoidea 6 scita 193, 199, 239 Scolytinae 134, 137, 140, 152 Scolytogenes 155, 231 Scopaeus 68, 70, 78, 217 scotti 38, 40, 66, 69, 71, 72, 90, 92, 93, 136, 144, 159, 161, 162, 164, 167, 171, 172, 177, 179, 190, 191, 193, 194, 195, 207, 208, 209, 212, 216, 217, 220, 221, 225, 227, 232, 233, 234, 235, 237, 238, 240 sculpticollis 173, 175, 235 scuticollis 169, 233 Scydmaeidae 37 Scydmaenidae 6, 7, 36, 57, 60, 99, 108, 171, 172, 175, 184, 214 Scydmaenini 58 Scydmaenus 58, 59, 214, 215 Scymnus 177, 179, 180, 235 Scytha 150, 230 sebertensis 150, 230 sechellarum 14, 21, 30, 42, 62, 64, 67, 73, 78, 82, 101, 112, 128, 131, 139, 146, 148, 171, 185, 188, 215, 216, 222, 224, 225, 228, 229, 234, 237 sechellensis 12, 17, 23, 24, 26, 85, 210, 211 segregatus 147, 228 selika 83 semifasciatus 132, 133, 225 semigranosus 156 semipunctatus 71, 72, 217 semitibialis 127, 224 senecionis 85, 219 senex 58, 92, 214, 220 Sepedophilus 76, 77, 218 septemcarinata 114, 115, 116, 121, 122, 224

septiceps 150, 230 seriatus 154, 155, 198, 239 Serica 85 sericata 145, 228 sericatus 11, 160, 232 Sericoderus 181, 183, 236 serricorne 99, 101 serripes 148, 229

servillianus 12, 15, 17, 18, 210 sexcristatus 142, 226 sexmaculata 177, 235 sexspinosus 154 Seychellaltica 204, 206, 240 seychellarum 20, 30, 40, 126, 128, 144, 164, 166, 179, 181, 182, 198, 199, 203, 224, 227, 236, 238, 239 seychellensis 13, 27, 28, 29, 39, 58, 60, 65, 71, 73, 79, 82, 85, 99, 101, 108, 125, 140, 141, 165, 180, 181, 183, 185, 188, 193, 194, 207, 208, 212, 214, 215, 216, 217, 219, 222, 226, 233, 236, 237, 238, 240 Shoguna 167, 168, 233 Shutea 142, 226 sicana 190, 191, 237 silhouettae 12, 20, 26, 30, 73, 74, 99, 101, 211, 218, 222 silhouettensis 12, 20, 26, 30, 73, 74, 99, 101, 145, 211, 218, 222, 228 Silvanidae 8, 9, 36, 168, 170, 233 Silvaninae 168, 169 Silvanoprus 169, 233 Silvanus 169, 170, 233 silvestris 144, 227 silvicola 76, 145, 185, 187, 218, 228, 236 similis 106, 107, 155, 156, 223, 231 simillima 100, 102, 223 simoni 168, 170, 234 simplex 150, 193, 196, 197, 230, 238 singularis 65, 190, 194, 199, 237, 239 Sinoxylon 97, 98, 222 Siopelus 38, 42, 43, 213 Sitophilus 138, 139, 226 sobrinus 162, 166, 233 solitaria 173, 234 solitarius 92, 95, 221 sorbrinus 136, 225 sordidus 16, 138, 226 sparsutus 146 spectabilis 64, 216 specularis 67, 216 speculifrons 194, 199, 239 Spermophagus 206, 240 Sphadasmus 141, 142, 226 sphaeropterus 148, 229 Sphindidae 8, 9, 37, 45, 89, 91, 97, 102,

258 103, 105, 223 Sphodrias 150, 230 Spinosodineutus 18 spinosus 154, 231 spissus 151, 230 Sponsor 87, 88, 220 spurcus 142, 226 stagnicola 25 Staphylinidae 6, 7, 35, 37, 60, 77, 78, 215 Staphyliniformia 6, 45 Staphylininae 61, 74 Staphylinoidea 6, 56, 78, 214 3Stelidota 161, 167, 233 Stenaptinus 38, 39 Stenichnoteras 58, 60, 215 Steninae 61, 76 Stenociniinae 193 Stenocylidrus 159, 160, 232 Stenoglipa 117, 124, 223 Stenolophidius 38, 42, 213 Stenolophina 38 Stenolophus 38, 41, 42, 212 Stenomimus 144, 227 Stenommatus 138, 139, 226 Stenomorda 114, 115, 116, 118, 119, 223 Stenopentarthrum 144, 227 Stenoscelis 145, 228 Stenotrupis 144, 145, 228 Stenus 76, 78, 218 Steocylidrus 159, 160, 232 Stephanoderes 154 stercorea 184, 236 sternalis 90, 220 Stethorus 176, 180, 235 stevensoniae 150, 185, 187, 230, 236 Sticholotis 177, 180, 235 sticticus 15 Stictodrya 188, 189, 237 stigmaticollis 139 Stilboides 107 Stilbus 106, 107, 108, 223 Stilicus 70 strangulatus 139, 226 striatus 79, 219 stricticollis 150, 230 strigosus 68, 69, 217 striola 200, 201, 239 Stromatium 127, 224

subcincuts 147 subdepressa 99, 102, 223 subdepressus 175, 176, 235 subeuropaea 207 sublacernatus 185, 186, 236 submaculatus 93 submarginata 200, 201, 239 subpallipes 165, 233 subplagiatus 161, 165, 232 subplana 100, 222 subreticulatus 132, 225 subspinosus 12, 18, 210 subsquamosus 185, 186, 236 subunifasciata 119 subvittulus 13, 27, 29, 212 Sulcoptinus 99, 101, 222 sulphurea 177, 235 sundaensis 70 sundara 204, 205, 240 Sunius 68, 70, 217 Sunorfa 71, 72, 73, 217 Sunorfoides 72, 73 surinamensis 168, 169 suturalis 142, 177, 227 Sybra 131, 132, 225 Sycites 150, 230 T Tachura 38, 40 Tachyphanes 40 Tachyporinae 61, 76 tachyporoides 77, 218 Tachys 38, 40, 41, 213 Tachyura 38, 40 Tagalus 192, 199, 239 takamakaensis 161 tantillum 173, 174, 234 tantillus 165, 233 Tanygnathus 75 Tanyomus 151, 230 tarsalis 92, 94, 145, 221, 228 Tarsostenus 159, 160, 232 Telopes 97 Temnorrhamphus 145, 228 Temnorrhynchus 84, 219 Tenebrionidae 10, 36, 123, 189, 192, 199,

259 200, 201, 202, 203, 237 Tenebrioninae 192 Tenebrionini 193 Tenebrionoidea 8 tener 135, 225 tenuibrachium 100, 222 tenuiculus 142, 226 tenuilineata 39 tenuimargo 46, 47, 213 tenuipunctata 62, 204, 205, 215, 240 tenuis 150, 230 tenuitarse 85 terminata 65, 66, 216 termitophilus 112, 114 terreus 148, 229 tesselatus 136, 225 testacea 63, 215 testaceomarginatus 68, 69, 217 testaceorufus 68, 70, 217 testaceum 57, 214 Tetragonoderus 44, 213 Tetragonorrhamphus 145, 228 Thea 177, 181, 235 thermarum 75 Thinodromus 67, 68, 216 Thisias 189 thomasseti 13, 25, 30, 100, 102, 211, 223 thoracicus 93, 106, 108, 223 Thoracogonus 65, 67, 216 Thoracophorini 65, 78 Thorcophorina 65 Throscidae 7, 8, 37, 45, 89, 91, 97, 105, 220 Throscidium 57, 214 Thyroderus 173, 175, 235 tibialis 136, 225 Tinodemus 106, 107, 108, 223 torquatus 156 torticornis 203, 239 Toxicinae 192 Toxidium 73, 74, 218 Tragocephala 131, 224 trapeziformis 68, 69, 217 Trapezirrhynchus 145, 228 Trechicus 38, 43 Trechinae 39 Trelasus 92, 95, 221 Triboliini 193 Tribolium 193, 199

Trichonychini 71 tricolor 115, 117 trilunaris 39, 212 trimaculatus 93, 130 Triomicrus 71, 73, 217 triplaris 140, 226 tripunctatus 12, 14, 15, 18, 210 trivitte 42, 212 trivittis 41 Trixagus 91, 220 Trochoideus 109, 111, 112, 113, 114, 223 Trochorhopalus 139, 226 troglodytes 47, 49, 50, 213 Trogoderma 97 Trogossitidae 8, 9, 158, 231 tropica 62, 63, 215 Tropicis 185, 188, 237 tropicus 106, 107, 223 truncatus 84, 219 trypanus 154, 231 tuberculatus 198 tuberculirostirs 145, 228 Tychiini 151 Typhaea 184, 236 typica 58, 59, 73, 99, 102, 214, 218, 223 typicus 183, 184, 236 Tyrtaeus 194, 199, 239 U Uloma 193, 199, 239 Ulomini 193 umbrosa 85 undulatus 96, 97, 221 unicolor 97 unicristatus 148, 229 unifasciata 208, 240 uniformis 21 univittatus 159, 160, 232 Urophorus 161, 162, 164, 232 Uvarus 12, 17, 18, 31, 210 V valens 154 validus 154

260

variabilis 154, 204, 205, 231, 240 variegata 177, 181, 235 variegates 193 variipennis 68, 69, 217 Vathydrus 16 velutinus 70 ventralis 177, 178 verschaffeltiae 148, 229 versicolor 83, 219 versutus 85, 219 viridisparsus 147, 228 viriditincta 193, 195, 238 viriditinctus 137, 226 vitellinus 92, 93, 221 vittatipenis 119 vittatus 150, 230 voeltzkowi 128, 177, 180, 224, 235 volvulus 156 Volvulus 25 vulgaris 154 vulpes 12, 19, 210 vulpinus 96, 97, 222

X Xamerpillus 177, 181, 235 Xamerpus 160 xantholoma 38, 43 Xenotropis 137, 226 Xuthia 190, 191, 237 Xyleborinus 155 Xyleborus 155, 156, 231 Xylobius 90, 91, 220 Xylographus 185, 188, 237 Xyloperthella 98, 222 Xyloperthini 98 Xylophilidae 36, 203 Xylophilus 203 Xylopsocus 98 Xylosandrus 156 Xylothrips 98, 99, 222 Xystrocera 127 Z Zidalus 193, 199, 200, 239

W wrighti 126, 224

261

Colour plates

262

Plate 1. Water beetles, scale bars 0.5 cm. Photos: M.A. Jäch & M. Madl Plate 2. Water beetles, scale bar 0.1 cm. Photos: M.A. Jäch & M. Madl Plate 3. Cerambycidae, scale bar 1 cm. Photos: E. Vives except Coptops, Hyllisia, Iresiodes and Olenecamptus (J. Gerlach) Plate 4. Curculionoidea. Photos: F. Pelsue & C. O’Brien

Captions for Plates 1-2 Figs. 1-6: 1) Dineutus subspinosus, 2) Copelatus aldabricus, 3) C. gardineri, 4) Cybister tripunctatus africanus, 5) Hydaticus servillianus, 6) Eretes griseus. Scales: 0.5 cm, a: Fig. 4, b: Figs. 1-3, c: Figs. 5, 6. Figs. 7-14: 7) Laccophilus addendus, 8) Hyphydrus impressus, 9) Hydroglyphus farquharensis, 10) Uvarus sechellensis, 11) U. rivulorum, 12) Hydrovatus acuminatus, 13) Canthydrus notula, 14) Neohydrocoptus subvittulus seychellensis. Scales: 0.1 cm, d: Figs. 7, 8, e: Figs. 9-14. Figs. 15-24: 15) Hydraena mahensis, 16) Paroosternum degayanum, 17) Paromicrus atomus, 18) P. carinatus, 19) P. thomasseti, 20) Bourdonnaisia mahensis, 21) B. silhouettae, 22) Cercyon fructicola, 23) C. conjiciens, 24) Paracymus alluaudianus. Scale: 0.1 cm. Figs. 25-32: 25) Helochares sechellensis, 26) Chasmogenus mollis, 27) Enochrus natalensis, 28) Regimbartia inflata, 29) Berosus cuspidatus, 30) Dactylosternum pygmaeum, 31) D. abdominale, 32) Coelostoma punctulatum. Scale: 0.1 cm. Figs. 33-38: 33) Microlara mahensis, 34) Heterocerus vulpes, 35) Hyphalus madli, 36) Cyphon insularius, 37) Scirtes mahensis, 38) S. flavohumeralis. Scale: 0.1 cm.

Plate 1.

263 2

1

4 9

3

12

6

5

13

10

7

8

14 11

Plate 2

264

16

17 18

15

33

34 19

20 21

35

22

23 36 24

25

26 37 27

32

38 28

29 30

31

Plate 3 Ceresium albopubens

265

Dyscoblax wrighti female male

Mahenes multifasciatus

Mahenes semifasciatus Paradandamis fuscovittata Micronoemia gerlachei

Pterolophia instabilis Coptops humerosa

Tragocephala alluaudi

Olenecamptus bilobus

Iresiodes aldabrensis

Hyllisia quadricollis

Plate 4

266

Euops viriditinctus

Sintrops alloeus

Cleranthribus colydiopsis

Phaenomerus lineolatus Dryophthorus ecarinatus Dryotribus mimeticus

Acalles seychellensis

Cryptorhynchidius graniger Cossonus suturalis

Barianus litoralis

Cycloternius ampliatus

Cycloternius humerolatus

Rhynchaemus spissus

Phoenicobates flexirostris

Cratopus griseovittatus

Endaeus curvimanus

Platypus sp.

Scolytinae