Taxonomy and phylogeny of the genus Gastrocentrum Gorham (Coleoptera, Cleridae, Tillinae), with the description of five new species

By

Yang, Gan-Yan
Yang, Xingke.
Shi, Hongliang

Type

Article

Date of Publication

2020

Original Publication

ZooKeys

Volume

979

Pages

99--132

Subjects

Australian Region , female , Morphology , Oriental region , systematics

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.979.53765

 

Abstract

The genusGastrocentrumGorham, 1876 is revised to include nine species. Five new species are described in this genus:G. magnumsp. nov.(NE India),G. regularesp. nov.(Cameron Highlands, Malaysia),G. xiaodongisp. nov.(Gyirong, Xizang, China),G. zayuensesp. nov.(Zayü, Xizang, China), andG. gaoligongensesp. nov.(Fugong, Yunnan, China).Gastrocentrum nitidumSchenkling, 1916 is transferred to the genusTillusas a new combination. All the species in this genus are described (exceptG. brevicolle), and a key is provided for their identification. Illustrations of male genitalia, female reproductive organs, and other important structures are provided. An interspecific phylogeny-estimate ofGastrocentrumis presented based on morphological data, with two main clades recognized: a clade containingG. unicolorandG. laterimaculatum, and a clade containing the remaining six species (the latter a polytomy consisting ofG. magnumsp. nov.,G. dux, andG. regularesp. nov., and a well-supported sub-clade representing the remaining species). Additionally, the taxonomic and phylogenetic importance of female reproductive organs is discussed.