Sphaeromias bifidus Wirth & Grogan 1979

Wirth & Grogan 1979. Natural history of Plummers Island, Maryland. 24. Biting midges (Diptera: Ceratopogonidae) 2. The species of the tribes Heteromyiini and Sphaeromiini. Proceedings of the Biological Society of Washington, 91(4) 1979: 847-903