Ivalomyia limbata Tiensuu, 1938
Fannia limbata (Tiensuu, 1938)
Fannia berolinensis Hennig, 1955

Gregor and Rozkosny (1993) have studied the type material of the taxa limbata and berolinensis and found them to be identical. They write that the alleged differences in genital morphology between the two taxa actually was caused by different preparation methods in the two original descriptions: in the case of limbata these were studied in situ, whereas in the case of berolinensis they have been macerated in a hot solution of potassium hydroxide that leads to a flattening of the male hypopygium and thus to an artificially modified morphology (Gregor and Rozkosny 1993).