Hesperiidae of Rondônia, Brazil: Taxonomic comments on “ night ” skippers, with descriptions of new genera and species (Lepidoptera: Eudaminae) Author Austin, George T. McGuire Center for Lepidoptera and Biodiversity Florida Museum of Natural History, University of Florida P. O. Box 112710, Gainesville, Florida 32611 text Insecta Mundi 2008 2008-03-03 2008 29 1 36 journal article 10.5281/zenodo.4532815 1942-1354 4532815 Dyscophellus erythras (Mabille, 1888) ( Fig. 50-55 , 99 , 108 , 127 ) No appreciable variation is seen among males of D. erythras from Rondônia (mean FW length = 24.1 mm [23.7-24.8, n = 4]). Of the two females examined (FW length = 27.2, 29.1 mm ), one is pale fulvous and the other is considerably darker red-brown. Genitalia of males from Rondônia ( Fig. 99 ) are as illustrated by Bell (1940 , as Discophellus tarquinius Bell, 1940 ), but exhibit a longer and narrower harpe with a shorter dorsal lobe than those illustrated by Evans (1952) . From their original descriptions (Mabille 1888, Bell 1940 ), Telegonus erythras and Discophellus tarquinius seem to be synonymous. The differences in their genitalia as illustrated by Bell (1940) and Evans (1952) apparently are a function of Evans’ diagrammatic figure. Female genitalia ( Fig. 108 ) (based on the two females from Rondônia ) are typical overall for the genus. The lamella postvaginalis slopes laterad from a shallow U-shaped central indentation. The lamella antevaginalis is represented by two large lateral plates without serrations or spines and a central portion that is rectangular. The sclerotized antrum narrows abruptly to a membranous tube that has a pair of small and weakly sclerotized plates just before opening into the side of a moderately broad ductus bursae leading to a bulbous corpus bursae. Dyscophellus erythras is uncommon near Cacaulândia, with records in August, October, and November ( Fig. 127 ). The species is known from northern South America to Peru and western Brazil ( Evans 1952 , Lamas 1994).