Key to genera of Entomobryidae with dorsal body scales and dental spines

(modified from Zhang et al. 2009)

1 Dental scales absent.................................................................................. 2

- Dental scales present................................................................................... 3

2 Prelabral chaetae smooth, simple (not bifurcate); cephalic groove without scale-like chaetae; anterior central region of the Abd. IV with one transverse row of mac.......................................................... Sinhomidia

- Prelabral chaetae bifurcate; cephalic groove with scale-like chaetae; anterior central region of the Abd. IV with two transverse rows of mac (Figs 14, 20, 27).......................................................... Amazhomidia gen. nov.

3 Body with faintly striate, apically rounded or truncate scales and few dorsal mac, except on mesothoracic collar..................................................................................................... Acanthurella

- Body with heavily striate apically pointed or rounded scales and numerous dorsal mac.................... Acanthocyrtus