Key to species (males) of Heleodromia from China

1. Tergite 8 without processes at posterior margin; fore femur with short av shorter than femur thickness; epandrial lobe not finger-like but furcated in H. immaculata or nearly finger-like but relatively thick in H. helanshana; surstylus without acute tip.................................................................................................... 2

- Tergite 8 with 2 short processes at posterior margin; fore femur with long av slightly longer than femur thickness; epandrial lobe long, thin, finger-like; surstylus with acute tip............................................. H. didyma sp. nov.

2. Epandrial lobe long, thin, but not furcated; surstylus nearly straight, distinctly thickened basally; fore coxa and all femora dark brownish yellow; all femora with distinct av.............................................. H. helanshana sp. nov.

- Epandrial lobe bifurcated with short thick anterior process and long finger-like posterior process; surstylus strongly curved forward, not thickened basally; legs nearly entirely black; av on mid and hind femora indistinct..... H. immaculata Haliday