A new species and an additional record of Pseudotachinus Cameron from China (Coleoptera: Staphylinidae: Tachyporinae).

Pseudotachinus bilobus Yin and Li, new species, is described from the border of Guizhou and Guangxi, southern China, with habitus and diagnostic features illustrated. The new species is distinct, and can be readily separated from all other congeners by the complete lack of microsculpture on the dorsal surface of the body, strongly transverse elytra, and unique forms of male and female sternites VIII. In addition, P. assingi Schülke is recorded from a new locality in Yunnan. The latest identification key and distributional map of Pseudotachinus are modified to include the new data.