Atomosia Macquart

Atomosia Macquart, 1838: 73 .

Species found in Wyoming: Atomosia puella and A. sayii .

Key to Species [adapted from Barnes (2008)]

1 Femora and tibiae largely black or dark brown; femora often pale at extreme apex, tibiae often pale at extreme base; wing cell r 5 usually broadly open at wing margin........................................................ Atomosia puella

- Femora and tibiae all or mostly yellow; wing cell r 5 narrowly open at wing margin, closed at wing margin, or closed and petiolate at wing margin........................................................................ Atomosia sayii