Description of Cerochusa gesinae sp. nov. from Thailand (Coleoptera: Staphylinidae: Pselaphinae)

A second species of the genus CerochusaYin & Nomura, 2012, C. gesinae Yin & Kleeberg, sp. nov., is described and illustrated from Chiang Mai, Thailand. The new species can be easily distinguished from C. ciliocepsYin & Nomura, 2012 from China and Thailand by the less strongly modified male head, distinct discal striae of the elytra, dense pubescence along the posterior margin of the elytra, and different shape of the aedeagus.