angustifrons (Wulp), 1903: 430, pl. 13, fig. 3. (Olfersia). Type locality: Mexico, Tabasco, Teapa and Costa Rica, Río Sucio. LT M, PL F (BMNH). Distr.: Colombia (Bolivar (Norosi)), Canada, U.S.A., Mexico, Honduras, Belize, Guatemala, Costa Rica, Panama, Venezuela, Guiana, Brazil. Refs.: Bequaert, 1955: 305; Maa, 1963: 15, 1969b: 55; Guimarães, 1968: 5 (cat.).