Melander, A.L. (1902). American Diptera. A monograph of the North American Empididae. Pt. 1. Transactions of the American Entomological Society,. 28, 195–367.
199584
Melander, A.L.
1902
American Diptera. A monograph of the North American Empididae. Pt. 1.
Transactions of the American Entomological Society,