Afromelittodes, a rarely encountered and unusual genus, appears to be restricted to the southern and south-western limits of the savanna biome where it has been collected only in late summer. Afromelittodesmimos is described from South Africa and Namibia (Type locality - Olifantshoek) and compared with the only other species in the genus, A. solis Oldroyd & Van Bruggen, 1963 known only from the type locality near Brits in South Africa. The male terminalia of both species are illustrated, as are the female terminalia of A. mimos (females of A. solis being unknown). Both species mimic megachilid bees. A. solis mimics Megachile (Chalicodoma) felina Gerstaecker, 1857, while A. mimos mimics M. (Pseudomegachile) sinuata Friese, 1903, a species which appears to serve as a model for at least two other Diptera belonging to two families, Syrphidae and Stratiomyidae. Brief comments on the strong resemblance to the monotypic, nearctic species Dasylechia atrox (Williston, 1883) are provided.