A Redescription of Bioramix aenescens (Blair, 1923) (Coleoptera:Tenbrionidae:Platyscelidini)

Platyscelidini is a very important group and normally the dominant group in desert and semi-desert areas, which plays a significant role to maintain the stability of ecosystem. Specimens (5 males and 5 females) of Bioramix aenescens were collected from Tibet, China in 2012, which was a relatively rare species in China. The original description of B. aenescens was very simply and without line drawings and photographs. In this paper, detailed description, line drawings and photographs of the species are given. Those specimens are deposited in the Museum of China West Normal University, Nanchong (MCWNU) and Museum of Russia Chuvash State Pedagogical University, Cheboksary (MRCSPU).