Two new species of Astenus Dejean, 1833 (Coleoptera: Staphylinidae: Paederinae) from Mêdog, China

Two new species of the paederine rove beetle genus Astenus Dejean, 1833 are described: A. medogensis sp. nov. and A. yarangensis sp. nov., both collected from Mêdog County, Xizang, China. Color plates of the habitus, antennae, abdominal segments VII–IX of the males, as well as the aedeagal structures are provided. In addition, a checklist of all known 30 species (including the two new species) of the genus Astenus from China is included.