Insect Fauna of Korea Fauna Insect Insect Fauna of Korea Volume 12, Number 26 Aquatic Coleoptera II Arthropoda: Insecta: Coleoptera: Gyrinidae, Haliplidae, Noteridae, Hydrophilidae Flora and Fauna of Korea National Institute of Biological Resources Ministry of Environment Insect Fauna of Korea Volume 12, Number 26 Aquatic Coleoptera II Arthropoda: Insecta: Coleoptera: Gyrinidae, Haliplidae, Noteridae, Hydrophilidae 2019 National Institute of Biological Resources Ministry of Environment Insect Fauna of Korea Volume 12, Number 26 Aquatic Coleoptera II Arthropoda: Insecta: Coleoptera: Gyrinidae, Haliplidae, Noteridae, Hydrophilidae Copyright © 2019 by the National Institute of Biological Resources Published by the National Institute of Biological Resources Environmental Research Complex, 42, Hwangyeong-ro, Seo-gu Incheon 22689, Republic of Korea www.nibr.go.kr All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of the National Institute of Biological Resources. ISBN: 978-89-6811-413-7(96470), 978-89-94555-00-3(Set) Government Publications Registration Number: 11-1480592-001631-01 Printed by Junghaengsa, Inc. in Korea on acid-free paper Publisher: National Institute of Biological Resources Authors: Dea-Hyun Lee (Dasari Research Institute of BioResources, Inc.), Kee-Jeong Ahn (Chungnam National University) Project Staff: Jinwhoa YUM, Junmi Hur, Seon-Yi Kim Published on November 30, 2019 Insect Fauna of Korea Volume 12, Number 26 Aquatic Coleoptera II Arthropoda: Insecta: Coleoptera: Gyrinidae, Haliplidae, Noteridae, Hydrophilidae Dea-Hyun Lee and Kee-Jeong Ahn1 Dasari Research Institute of BioResources, Inc. 1Chungnam National University Chung Ja Sim and Kyung Jin Lee1 Soon Chun Hyang University 1National Institute of Biological Resources The Flora and Fauna of Korea logo was designed to represent six major target groups of the project including vertebrates, invertebrates, insects, algae, fungi, and bacteria. PREFACE Biological resources include all organisms and their genetic characteristics. Conservation and utiliza- tion of these resources have the capacity to improve human life and to enhance the world. Therefore it is required that the practical and potential values of these organisms are conserved and used wisely. The first step towards this goal is to document our biological diversity and to investigate them in detail. Biological resources increase the competitiveness of a nation through their use as fundamental resources for making highly valued products, such as new lines of cultivar, materials, and drugs. Many countries in the world are responsible for preserving their biodiversity and using the sustainable ways. The Ministry of Environment (MOE) of Korea has established “CBD-CHM Korea” to share of infor- mation of biodiversity. Each nation in the world is investigating and clearing information of native species within its territory. The National Institute of Biological Resources (NIBR) of MOE has published the ‘Flora and Fauna of Korea’ since 2009 to manage biological resources in comprehensive ways and to enhance national compe- titiveness by building up the foundation for the sovereignty rights over biological resources. Professional research groups, consisting of professors and other taxonomic experts, have systematically examined 15,545 species of vascular plants, animals and other organisms over the past 10 years and have published their find- ings in 191 volumes in Korean and 196 volumes in English, and two volumes of monographs covering 216 species of invertebrates. This year, 21 volumes of the Flora and Fauna of Korea in both Korean and English versions including 704 species of vascular plants, invertebrates and insects are additionally published. The NIBR will continue to publish and research of flora and fauna of Korea that contribute conserva- tion and sustainable use of biological resources. Finally, I would like to express my sincere appreciation to authors who made efforts in writing the manuscripts of the Flora and Fauna of Korea. Prof. Dr. Yeon Jae Bae President National Institute of Biological Resources CONTENTS CONTENTS List of Taxa 5 Introduction 9 Materials and Methods 12 Acknowledgements 13 Taxonomic Notes 14 Family Gyrinidae Latreille 14 Genus Dineutus MacLeay 14 Subgenus Spinosodineutes Hatch 15 1. Dineutus (Spinosodineutes) orientalis (Modeer) 15 Genus Gyrinus Geoffroy 16 Subgenus Gyrinus Geoffroy 17 2. Gyrinus (Gyrinus) gestroi Régimbart 17 3. Gyrinus (Gyrinus) japonicus Sharp 18 4. Gyrinus (Gyrinus) pullatus Zaitzev 20 Genus Orectochilus Dejean 21 5. Orectochilus punctipennis Sharp 22 6. Orectochilus regimbarti Sharp 23 7. Orectochilus villosus (Müller) 24 Family Haliplidae Kirby 25 Genus Haliplus Latreille 25 Subgenus Haliplus Latreille 25 8. Haliplus (Haliplus) simplex Clark 25 Subgenus Liaphlus Guignot 28 9. Haliplus (Liaphlus) basinotatus Zimmermann 28 10. Haliplus (Liaphlus) chinensis Falkenström 30 11. Haliplus (Liaphlus) diruptus Balfour-Browne 32 12. Haliplus (Liaphlus) eximius Clark 34 13. Haliplus (Liaphlus) sharpi Wehncke 36 Genus Peltodytes Régimbart 38 14. Peltodytes intermedius (Sharp) 38 15. Peltodytes sinensis (Hope) 40 Family Noteridae Thomson 44 1 INSECT FAUNA OF KOREA Aquatic Coleoptera II Genus Canthydrus Sharp 44 Subgenus Canthydrus Sharp 44 16. Canthydrus (Canthydrus) politus (Sharp) 44 Genus Noterus Clairville 46 17. Noterus angustulus Zaitzev 46 18. Noterus japonicus Sharp 47 Family Hydrophilidae Latreille 50 Subfamily Hydrophilinae Latreille 51 Tribe Amphionini Kuwert 51 Genus Amphiops Erichson 51 19. Amphiops mater Sharp 51 Tribe Berosini Mulsant 53 Genus Berosus Leach 53 Subgenus Berosus Leach 54 20. Berosus (Berosus) japonicus Sharp 54 21. Berosus (Berosus) punctipennis Harold 56 Subgenus Enoplurus Hope 58 22. Berosus (Enoplurus) lewisius Sharp 58 23. Berosus (Enoplurus) spinosus (Steven) 61 Genus Regimbartia Zaitzev 62 24. Regimbartia attenuata (Fabricius) 63 Tribe Laccobiini Bertrand 63 Genus Laccobius Erichson 65 Subgenus Laccobius Erichson 65 25. Laccobius (Laccobius) bedeli Sharp 65 26. Laccobius (Laccobius) binotatus Orchymont 67 Subgenus Microlaccobius Gentili 69 27. Laccobius (Microlaccobius) formosus Gentili 69 28. Laccobius (Microlaccobius) oscillans Sharp 70 Genus Paracymus Thomson 72 29. Paracymus aeneus (Germar) 73 30. Paracymus zaitzevi Shatrovskiy 75 Tribe Hydrobiusini Mulsant 76 Genus Ametor Semenov 76 31. Ametor scabrosus (Horn) 76 2 CONTENTS Genus Hydrobius Leach 78 32. Hydrobius fuscipes (Linnaeus) 78 Tribe Hydrophilini Latreille 79 Genus Hydrochara Berthold 79 33. Hydrochara affinis (Sharp) 79 34. Hydrochara libera (Sharp) 81 35. Hydrochara vicina Bameul 83 Genus Hydrophilus Geoffroy 83 36. Hydrophilus acuminatus Motschulsky 84 37. Hydrophilus bilineatus cashimirensis Kolla and Redtenbacher 86 Genus Sternolophus Solier 87 38. Sternolophus rufipes (Fabricius) 87 Subfamily Chaetarthriinae Bedel 89 Tribe Anacaenini Thomson 90 Genus Crenitis Bedel 90 Subgenus Acrenitis Matsui and Nakane 90 39. Crenitis (Acrenitis) formosana Hebauer 90 40. Crenitis (Acrenitis) primorica Hebauer 91 Subgenus Crenitis Bedel 92 41. Crenitis (Crenitis) apicalis (Reitter) 92 Subfamily Enochrinae Short and Fikáček 94 Genus Enochrus Thomson 94 Subgenus Holcophilydrus Knisch 95 42. Enochrus (Holcophilydrus) simulans (Sharp) 95 Subgenus Lumetus Zaitzev 101 43. Enochrus (Lumetus) bicolor (Fabricius) 101 44. Enochrus (Lumetus) subsignatus (Harold) 103 Subgenus Methydrus Rey 105 45. Enochrus (Methydrus) esuriens (Walker) 105 46. Enochrus (Methydrus) uniformis (Sharp) 107 Subfamily Acidocerinae Zaitzev 109 Genus Agraphydrus Régimbart 110 Subgenus Agraphydrus Régimbart 110 47. Agraphydrus (Agraphydrus) ishiharai (Matsui) 110 48. Agraphydrus (Agraphydrus) narusei (Satô) 112 3 INSECT FAUNA OF KOREA Aquatic Coleoptera II Genus Helochares Mulsant 114 Subgenus Helochares Mulsant 114 49. Helochares (Helochares) pallens (MacLeay) 114 Subgenus Hydrobaticus MacLeay 116 50. Helochares (Hydrobaticus) nipponicus Hebauer 116 Subfamily Sphaeridiinae Latreille 118 Tribe Coelostomatini L. Heyden 118 Genus Coelostoma Brullé 118 Subgenus Holocoelostoma Mouchamps 118 51. Coelostoma (Holocoelostoma) stultum (Walker) 118 Subgenus Lachnocoelostoma Mouchamps 120 52. Coelostoma (Lachnocoelostoma) wui Orchymont 120 Literature Cited 121 Plates 137 Index to Scientific Names 153 4 LIST OF TAXA LIST OF TAXA Class Insecta Linnaeus, 1758 Order Coleoptera Linnaeus, 1758 Suborder Adephaga Schellenberg, 1806 Family Gyrinidae Latreille, 1810 Genus Dineutus MacLeay, 1825 Subgenus Spinosodineutes Hatch, 1926 Dineutus (Spinosodineutes) orientalis (Modeer, 1776) Genus Gyrinus Geoffroy, 1762 Subgenus Gyrinus Geoffroy, 1762 Gyrinus (Gyrinus) gestroi Régimbart, 1883 Gyrinus (Gyrinus) japonicus Sharp, 1873 Gyrinus (Gyrinus) pullatus Zaitzev, 1908 Genus Orectochilus Dejean, 1833 Orectochilus punctipennis Sharp, 1884 Orectochilus regimbarti Sharp, 1884 Orectochilus villosus (Müller, 1776) Family Haliplidae Kirby, 1837 Genus Haliplus Latreille, 1802 Subgenus Haliplus Latreille, 1802 Haliplus (Haliplus) simplex Clark, 1863 Subgenus Liaphlus Guignot, 1928 Haliplus (Liaphlus) basinotatus Zimmermann, 1924 Haliplus (Liaphlus) chinensis Falkenström, 1932 Haliplus (Liaphlus) diruptus Balfour-Browne, 1947 Haliplus (Liaphlus) eximius Clark, 1863 Haliplus (Liaphlus) sharpi Wehncke, 1880 Genus Peltodytes Régimbart, 1879 Peltodytes intermedius (Sharp, 1873) Peltodytes