Discovery of Cymatopus Kertész (Diptera: Dolichopodidae) on African continent with description of two new species from Tanzania

Two new species of the genus Cymatopus Kertész from coastal Tanzania are described, and an identification key to males of Afrotropical species is provided. Cymatopus mtwara sp. nov. and C. vikhrevi sp. nov. are associated with the Australasian and Oriental Cymatopus tibialis group of species, particularly the C. thaicus subgroup, differing from other species in ornamentations of male fore legs and shape and setation of hypopygial structures. An identification key to males of the four known Afrotropical species is compiled for the first time. The World fauna of the genus contains now 25 Afrotropical, Australasian, Neotropical and Oriental species.