Genus Nagehana Özdikmen, 2009

Nagehana Özdikmen, 2009: 114 .

Type-species: Retha rustica Clarke, 1978: 58, fig. 45, pl. 4h; by original designation and monotypy.

The genus Nagehana Özdikmen, 2009 includes four known species, N. rustica (Clarke, 1978), N. chagualphaga (Beéche, 2003), N. equiensis (Beéche, 2003) and N. minuscula Urra, 2018 . These species share the following characters: scape of antenna with a pecten; labial palpus recurved, second segment exceeding vertex; FW with apex not falcate, vein R 4+5 stalked, R 5 to costa, CuP present, 1A+2A simple; HW with veins M 3 and CuA 1 shortstalked; hindtibia with raised piliform scales; terga with deciduous spiniform setae arranged in wide patches, second abdominal sternum with apodemes and venulae; uncus and gnathos subtriangular; valva entire, with process; juxta with lateral lobes. Only females of N. chagualphaga and N. equiensis are known; their genitalia have a sclerotized antrum and long apophyses. The two new species share these features, which is why we place them in this genus.