Genus NYPLATYS Séguy

Nyplatys Séguy, 1938: 329 . Type species, Nyplatys niger Séguy, 1938, by original designation.

Himantochaeta Lindner, 1939: 10 . Type species, Himantochaeta cultellata Lindner, 1939, by monotypy. Syn. nov.

Nyplatys cultellata (Lindner) . Comb. nov.

Himantochaeta cultellata Lindner, 1939: 10 . ST 1 ♂, 1 ♀ [BMNH], 1 ♂ [SMNS]: Uganda: Ruwenzori, Namwamba Valley, 6500 feet .

We studied several syntypes [MNHN] of Nyplatys niger and a syntype of Himantochaeta cultellata [SMNS] as well as additional material of these species and came to the conclusion that both species are congeneric. Further studies are needed to determine how many species are in this genus, since from material on hand it seems that there are several different species in eastern Africa. In describing Nyplatys, Séguy (1938) compared it with Platynomyia Grünberg, which is strange, because Platynomyia is not only nearly twice the size of Nyplatys, but it has a white filiform last antennal flagellomere, while Nyplatys is characterized by its black laterally flattened last antennal flagellomere.