Oecetis avara Banks

Oecetis avara (Banks) Fig. 2 Setodes avara Banks 1895: 316 (sex not stated, original description); Banks 1899: 214 (in Oecetina); Ulmer 1907: 129 (in Oecetodes); Sibley 1926:105; Ross 1944: 240 (male, female, distribution); Smith & Lehmkuhl 1980: 641 (male, female, larva, pupa, differentiation from O. disjuncta); Bueno & Flint 1980: 213 (distribution); Flint 1991a: 96 (distribution); Flint 1996: 423 (distribution); Botosaneanu & Alkins-Koo 1993: 35 (distribution). Oecetis avara is a widespread species, with records from Bolivia to the northern United States and Canada. This species belongs to the O. avara Complex with O. disjuncta (Banks 1920) and O. metlacensis Bueno-Soria (1981). Oecetis marquezi and O. elata Denning & Sykora (1966) are also similar and could belong to the same group of species. Oecetis avara can be distinguished by the narrow segment IX, the small preanal appendages, the inferior appendages each having a big and broad dorsal process and small apical process. The specimen found in the study area has tergum X basally membranous and forewings bearing the typical spots in the membrane. Material examined. BOLIVIA: Cochabamba: Small tributary of the Río Espiritu Santo, Chipiriri, near Villa Tunari, 16°50'45''S, 65°25'33''W, 25.ix.2003, (CBF-UMSA) ― 1 male. Distribution. Belize, Bolivia, Brazil, Canada, Colombia, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Peru, Trinidad, U.S.A., Venezuela.