Key to Chinese species (males) of Sobarocephala

1. Setae black; gena more than 1/9 height of eye; prescutellar setae present; surstylus slightly arched anteriorly, and with posterobasal margin incurved and broadly lobate............................................. S. mitsuii Sasakawa

Setae pale brown; gena at least 1/6 of the eye height; prescutellar setea absent; surstylus straight and uncurved at margin... 2

2. Intra-alar seta absent; pronotum and middle of mesonotum yellow, mesonotum brown on both sides; legs light yellow; epandrium height 1.5 times width................................................................ S. luchunensis sp. nov.

Intra-alar seta present; mesonotum with 2 pale brown stripes; legs yellow with fore tibia and tarsus brown; epandrium height 1.9 times width.................................................................... S. lophacanthus sp. nov.