Oecetis houghtoni Blahnik & Holzenthal 2014

Figure 10.Oecetis houghtoni sp. n., male genitalia: A lateral B phallic apparatus, lateral C phallic apparatus, caudal D phallic apparatus, ventral E inferior appendage, caudal F inferior appendage, ventral G segment IX and tergum X, dorsal.

Figures 11–14.Variation in Minnesota specimens of Oecetis houghtoni sp. n., and Oecetis avara (Banks). 11–12 Oecetis houghtoni 13–14 Oecetis avara: a inferior appendage, lateral b phallobase, lateral c preanal appendage, dorsal d phallobase, caudal e phallobase, ventral f mesal process of tergum X, lateral.

Figures 33–34.Wings of Oecetis avara group species. 33 Oecetis angularis sp. n. 34 Oecetis houghtoni sp. n.: A forewing B hind wing.

Figures 35–45.Oecetis avara group species – lateral habitus (male). 35 Oecetis uncata sp. n. 36 Oecetis metlacensis Bueno-Soria 37 Oecetis apache sp. n. 38 Oecetis sordida sp. n. 39 Oecetis disjuncta (Banks) 40 Oecetis avara (Banks) – Florida 41 Oecetis avara (Banks) – Minnesota 42 Oecetis houghtoni sp. n. 43 Oecetis elata Denning & Sykora 44 Oecetis verrucula sp. n. 45 Oecetis species nr. houghtoni – Tennessee.

Figure 58.NJ phylogram of COI barcode sequences for Oecetis avara group species.

Figure 28.Oecetis avara group variant, nr. Oecetis houghtoni, Tennessee specimen: A lateral B phallic apparatus, lateral C phallic apparatus, caudal D phallic apparatus, ventral E inferior appendage, caudal F inferior appendage, ventral G segment IX and tergum X, dorsal.