Nausigaster geminata Townsend, 1897.
Townsend, C.H.T. (1897) Contributions from the New Mexico Biological Station. No. II (continued). On a collection of Diptera from the lowlands of the Rio Nautla, in the state of Vera Cruz. II. Annals and Magazine of Natural History (6) 20, 19-33, 272-291.
Species known from Arizona, Texas and Mexico (Thompson 2010).
unless otherwise stated