Two new species of the megadiverse lentic diving-beetle genus Hydrovatus (Coleoptera, Dytiscidae) described from NE Thailand

Here we describe two new Hydrovatus species (Coleoptera: Dytiscidae: Hydroporinae: Hydrovatini) from the province of Khon Kaen, Isan region in NE Thailand. Hydrovatus is the third most species rich genus of diving beetles (Dytiscidae). It occurs on all continents except Antarctica and now numbers 21...

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Bibliographic Details
Published in:ZooKeys
Main Authors: Bistrom, Olof, Bergsten, Johannes
Other Authors: Finnish Museum of Natural History, Zoology, Olof Biström / Principal Investigator
Format: Article in Journal/Newspaper
Language:English
Published: Pensoft Publishers 2016
Subjects:
Hydrovatus
Coleoptera
Dytiscidae
taxonomy
new species
keys to species
Thailand
AQUATIC BEETLES
HABITAT TYPE
Lacciphilus
WESTERN CAPE
HALIPLIDAE
Gyrinidae
Africa
Madagascar
ADEPHAGOUS WATER BEETLES
1181 Ecology
evolutionary biology
Antarc*
Antarctica
Online Access:http://hdl.handle.net/10138/170375
Description
Summary:Here we describe two new Hydrovatus species (Coleoptera: Dytiscidae: Hydroporinae: Hydrovatini) from the province of Khon Kaen, Isan region in NE Thailand. Hydrovatus is the third most species rich genus of diving beetles (Dytiscidae). It occurs on all continents except Antarctica and now numbers 210 currently recognized species. Both new species, H. diversipunctatus sp. n. and H. globosus sp. n., were collected at lights and are only known from the type locality "Khon Kaen" (a city and province). Diagnoses based on morphology for the separation from closely related species are given together with illustrations of male genitalia and habitus photos. We provide a determination key to Old World species of the pustulatus species group and to Oriental species of the oblongipennis species group. Peer reviewed

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