Revision of the genus Eotrechus Kirkaldy (Hemiptera, Heteroptera, Gerridae), with descriptions of six new species

By

Tran, Anh Duc
Zettel, Herbert, 1963-
Sites, Robert

Type

Article

Date of Publication

2023

Original Publication

Deutsche entomologische Zeitschrift

Volume

70

Series / Issue

Issue: 1

Pages

69--111

Subjects

Eotrechus , Gerridae , Gerromorpha , new species , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Berlin Nicolai'sche Verlags-Buchandlung 1881-

Identifiers

DOI: https://doi.org/10.3897/dez.70.97117

 

Abstract

Species of the Asian genus Eotrechus Kirkaldy, 1902 (Hemiptera, Heteroptera, Gerromorpha, Gerridae, Eotrechinae) are atypical water striders because they live on the near-vertical rock surfaces of waterfalls. The taxonomy of the genus is revised and six new species are described: E. steineri sp. nov., E. kerberos sp. nov., E. thai sp. nov., E. konkakinh sp. nov., E. boukali sp. nov., and E. anderseni sp. nov. Supplementary descriptions of the apterous female and macropterous male of E. fuscus Basu, Chandra & Venkatesan, 2017 are provided. Additional and updated distribution data of species of Eotrechus are reported. Eotrechus fuscus is reported from Myanmar for the first time; E. brevipes is reported from Nepal for the first time; E. hygropetricus Andersen, 1982 is reported from southern Thailand for the first time, which extends the southernmost limit of the known distribution of the genus. A revised key to the species of Eotrechus is also provided.