Venation:
- both cells divided
- FW quadrifid
- three anal veins on HW
- FW (R5, (R4, R3)) staked, sometimes from cell, sometimes as (R2 (R5, (R4, R3))).
- FW A1 forked at base
- HW M1 and R stalked

Male antennae usually bipectinate only over the basal half to 2/3

Tympanum absent