perdita (Malloch), 1912: 459 (Aphiochaeta). Type locality: USA, Plummers Island. HT F (USNM). Distr.: Brazil, Colombia, Ecuador, Mexico, USA. Refs.: Brues, 1915a: 126 (Aphiocaeta); Brues, 1950: 68; Borgmeier, 1962a: 293; 1964: 262; 1968: 199 (cat.).