KEY TO SPECIES OF PLATYPALPUS ( DIPTERA, HYBOTIDAE) FROM HUBEI, CHINA

1a Thorax yellow; antenna yellow or dark yellow........................ 2

1b Thorax black; antenna black.................... hubeiensis Yang & Yang

2a Mesonotum and scutellum partly or entirely black..................... 3

2b Mesonotum and scutellum entirely yellow............... pingqianus sp. n.

3a Mesonotum entirely yellow; scutellum black, mediotergite yellow; hind femur without ventral spines.................. guangxiensis Yang & Yang

3b Mesonotum with a black mid-longitudinal stripe; scutellum and mediotergite black; hind femur with a row of tiny, black ventral spines on apical half...................................... dalongtanus sp. n.