[1]
A. G. Scarbrough and D. E. Perez-Gelabert, “Review of the West Indian species of Efferia Coquillett (Diptera: Asilidae) with 13 new species and checklist: Part II. Hispaniola, Puerto Rico, and Lesser Antilles including Tobago and Trinidad”, Zootaxa, vol. 1994, no. 1, pp. 1–66, Feb. 2009.