An aberrant species of Nipponocercyon from Sichuan, China (Coleoptera, Hydrophilidae, Sphaeridiinae)

By

Fikáček, Martin
Ryndevich, Sergey
Jia, Fenglong

Type

Article

Date of Publication

2012

Original Publication

ZooKeys

Volume

214

Pages

13-27

Subjects

China , Hydrophilidae , Morphology , Nipponocercyon , Oriental region , Palaearctic region , Sphaeridiinae , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.214.3437

 

Abstract

A detailed examination of specimens of Cryptopleurum sichuanicum Ryndevich, 2005 from high altitudes of Sichuan Province, China, revealed that the species belongs in the genus Nipponocercyon Satô, 1963 previously endemic to Japan. The species is here transferred in Nipponocercyon, and N. sichuanicus (Ryndevich, 2005), comb. n. is redescribed and compared with N. shibatai Satô, 1963. The male genitalia of N. sichuanicus is described for the first time. An adapted diagnosis of Nipponocercyon is provided, and reasons for the inclusion of N. sichuanicus into Nipponocercyon and the general distribution of the genus are discussed.