Key to the species of Neolycaena (Rhymnaria) davidi (Oberthür, 1881) species group

1. Dorsal side of wings black, ventral side dark brown. Male forewing with reduced androconia. Female abdomen with blackishgrey anal tuft............................................................................. N. (R.) tangutica

- Dorsal side of wings grey or brown, ventral side light brown or grey. Male forewing with distinct androconia. Female abdomen with black, grey or pale anal tuft......................................................................... 2

2. Male androconia narrow, linear, light brown. Female with pale anal tuft. Female genitalia with narrow lamella postvaginalis nearly as broad as base of ductus..................................................... N. (R.) kozlovi stat. rev.

- Male androconia broadened distally, brown or grey. Female with black or grey anal tuft. Female genitalia with lamella postvaginalis broader than base of ductus.................................................................. 3

3. Wings greyish. Orange elements of submarginal pattern nearly reduced. Male androconia wedge-shaped, grey. Female with grey anal tuft..................................................................... N. (R.) markhasiovi sp. n.

- Wings brown. Orange elements of submarginal pattern well-developed, vivid. Male androconia arrow-shaped, brown. Female with black anal tuft.......................................................................... N. (R.) davidi