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

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Bistrom , O & Bergsten , J 2016 , ' Two new species of the megadiverse lentic diving-beetle genus Hydrovatus (Coleoptera, Dytiscidae) described from NE Thailand ' ZooKeys , no. 632 , pp. 57-66 . DOI: 10.3897/zookeys.632.10483

Title: Two new species of the megadiverse lentic diving-beetle genus Hydrovatus (Coleoptera, Dytiscidae) described from NE Thailand
Author: Bistrom, Olof; Bergsten, Johannes
Contributor: University of Helsinki, Zoology
Date: 2016-11-16
Language: eng
Number of pages: 10
Belongs to series: ZooKeys
ISSN: 1313-2989
URI: http://hdl.handle.net/10138/170375
Abstract: 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.
Subject: 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
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