A key to Grouvellinus Champion, 1923 from mainland China with descriptions of two new species (Coleoptera, Elmidae)

Abstract

A key to Grouvellinus Champion from mainland China is provided. Two new species of Grouvellinus are described from Jiangxi, China, Grouvellinus orbiculatus sp. n. and Grouvellinus sagittatus sp. n. Descriptions, diagnoses, and illustrations of the new species are given. Habitus photos of the nine known species are provided including the four species from Taiwan.