The genus Platypalpus Macquart (Diptera, Hybotidae, Tachydromiinae) from Inner Mongolia, China, with the description of four new species.

Platypalpus Macquart is reported in Inner Mongolia, China for the first time. Four new species are found: P.flavipilosussp. nov., P.longussp. nov., P.shengisp. nov. and P.shuimogouanussp. nov. This paper provides a description of the four species and a key to the genus in Inner Mongolia.