Raysymmela erwini is a species of beetle of the family Scarabaeidae. It is found in Bolivia.
Adults reach a length of about 4.2 mm. The head is black, dull and iridescent, with upright sparse setae. The labroclypeus has a rim of dense short setae behind anterior margin. The antennal club is blackish. The pronotum is iridescent and black, while the elytra are black with the posterior half dark.
The species is named after the entomologist Terry Erwin.