Descriptions of four new Afrotropical muscid species confusingly similar to Dichaetomyia ovata (Stein) (Diptera: Muscidae)

Four new Dichaetomyia species of the subgenus Panaga are described as Dichaetomyia congoa sp. n., Dichaetomyia ghanuga sp. n., Dichaetomyia kenyana sp. n. and Dichaetomyia nigeriana sp. n. Because of a certain similarity with Dichaetomyia ovata all four species had been wrongly assigned to this species in the past. The comparison of these specimens with the existing syntype of D. ovata revealed the taxonomic differences between the representatives of the different new species.