Key to the species of Trachystolodes

1. Male............................................................................................... 2

- Female............................................................................................. 3

2. Black setal spots near elytral middle mushroom-shaped or securiform, apex (except venter) of femora and basal dorsum of tibiae densely covered with short brown setae................................ Trachystolodes huangjianbini sp. nov.

- Black setal spots near elytral middle not mushroom-shaped or securiform, apex (except venter) of femora and basal dorsum of tibiae densely covered with short golden yellow setae........................................................ 4

3. Black setal spots near elytral middle converse “V” shaped, apex (except venter) of femora and basal dorsum of tibiae densely covered with short brown setae...................................................... T. huangjianbini sp. nov.

- Black setal spots near elytral middle sub-rectangular, apex (except venter) of femora and basal dorsum of tibiae densely covered with short golden yellow setae....................................................... T. tonkinensis Breuning

4. Black setal spots near elytral middle drop-shaped........................................ T. bimaculatus Kriesche

- Black setal spots near elytral middle sub-rectangular...................................... T. tonkinensis Breuning