Abstract: | Abstract This paper describes four new species of the genus Tachytrechus Haliday 1851, from Guizhou in southwestern China, namely, T. absarista Wei, sp. nov., T. crysus Wei, sp. nov, T. crypsusoideus Wei, sp. nov. and T. modestus Wei, sp. nov. A key to all 9 named species is given. The type specimens are deposited in the author's collection. |