Three new species of the genus Zaitzevia Champion, 1923 (Coleoptera, Elmidae) from China

Abstract

Three new riffle beetles of the genus Zaitzevia Champion, 1923 are described from China, namely Zaitzevia sichuanensis sp. nov. and Zaitzevia fengtongzhaiensis sp. nov. from Sichuan Province, and Zaitzevia yingzuijieensis sp. nov. from Hunan Province. Habitus and diagnostic features of the new species are illustrated. A checklist of all known Chinese Zaitzevia species is given, and a key and distributional map of Zaitzevia species from the Chinese mainland are provided.