title: A new species of Cogia from Oaxaca, Mexico (Lepidoptera: Hesperiidae: Eudaminae).
abstract: A new species of Cogia A. Butler, 1870, is described from two localities ranging from 1470 to 2000 m elevation in the Sierra Madre del Sur of Oaxaca, Mexico; it occurs in cloud forest habitats and appears to be endemic to Mexico. Cogia buena, n. sp., is closely related to C. mala Evans, 1953 and C. aventinus (Godman & Salvin, 1894); these three species are the only known Cogia taxa whose males lack a hair tuft on the dorsal hindwing, and all have similar genitalia.
authors.affiliation: McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, SW 34th Street and Hull Road, P. O. Box 112710, Gainesville, Florida 32611-2710 U.S.A.; Email: andy@butterfliesofamerica.com.
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Warren
authors.affiliation: Laboratório de Estudos de Lepidoptera Neotropical, Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81531-980, Curitiba, Paraná, Brasil.; Email: dirodrido@hotmail.com.
authors.forename: Diego R
authors.initials: DR
authors.lastname: Dolibaina
authors.affiliation: Museo de Zoología (Entomología), Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, Apdo. Postal 70-399, México, D.F. 04510, México.; Email: claudia_hernandezm@hotmail.com.
authors.forename: Claudia
authors.initials: C
authors.lastname: Hernández-Mejía
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D017753:Ecosystem; D005260:Female; D008297:Male; D008800:Mexico; D009036:Moths / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size