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Three new species of Hesperiidae from French Guiana are described. Emmelus benmesbahi Shuey, n. sp. (Eudaminae) represents an eastern extension of this previously monotypic genus. It looks very similar to Emmelus purpurascens but has distinctive genitalia. Damas woldi Shuey, n. sp. (Hesperiinae) is closely related to the widespread neotropical "Damas clavus", a species concept that likely includes other cryptic species across its expansive range. The new species differs consistently in wing pattern and genitalic characters with neighboring populations in the Amazon basin. Metrocles nigroalbum Shuey, n. sp. (Hesperiinae) is a uniquely patterned species that can be confused with no others. All three new species are from the Kaw Mountains and coastal areas of the country. [ABSTRACT FROM AUTHOR]

Talides basistrigata Eaton, 1932, originally described from Peru, was subsequently transferred to the genus Hylephila Billberg, 1820 by Evans (1955) and considered a subspecies of H. phyleus (Drury, 1773), arguing that basistrigata inhabits drier environments than phyleus. Currently, the taxonomic status proposed by Evans is retained. The aim of this study is to reinstate the taxonomic status of valid species for basistrigata based on an integrative analysis considering morphological, ecological, and genetic aspects. Genitalic structures were examined in specimens of both basistrigata and phyleus, mitochondrial COI gene sequences were obtained for both species, and field data were collected to understand their oviposition behaviour in the vicinity of Arequipa city, southwestern Peru. As a result of the morphological examination, notable differences were found between the male genitalia structures of both species, primarily in the caudal processes of the valvae, the arrangement of the pectines, and the shape of the uncus. Regarding the genetic analysis, a genetic distance of greater than 3% was observed between the two species, thus supporting the taxonomic status of species for basistrigata. Additionally, from an ecological perspective, it was recorded that both species employ distinct oviposition mechanisms and different host plants, exhibiting spatial sympatry and temporal synchrony on the western slope of the Andes in Peru. Male and female adults of basistrigata are redescribed, and a lectotype is designated. [ABSTRACT FROM AUTHOR]

Talides basistrigata Eaton, 1932, originalmente descrita de Perú, posteriormente fue transferida por Evans (1955) al género Hylephila Billberg, 1820, y considerada como una subespecie de H. phyleus (Drury, 1773), argumentando que basistrigata ocurre en ambientes más secos que los que habita phyleus. Actualmente se mantiene el rango taxonómico propuesto por Evans. El objetivo del presente trabajo es restituir el estatus taxonómico de especie válida para basistrigata con base en un análisis integrativo considerando aspectos morfológicos, ecológicos y genéticos. Se examinó las estructuras genitálicas en ejemplares de basistrigata y phyleus, se obtuvo secuencias del gen mitocondrial COI para ambas especies y se recopiló datos en campo para conocer su comportamiento de oviposición en los alrededores de Arequipa, suroeste de Perú. Como resultado del examen morfológico se halló diferencias notorias entre las estructuras genitálicas de ambas especies, principalmente en los procesos caudales de las valvas, la disposición de las pectinas y la forma del uncus en los machos. Con relación al análisis genético, se halló una distancia genética mayor a 3% entre ambas especies, apoyando así el estatus taxonómico de especie para basistrigata. Adicionalmente, desde una perspectiva ecológica, se registró que ambas especies utilizan distintos mecanismos de oviposición y diferentes plantas hospederas, exhibiendo además simpatría espacial y sincronía temporal en la vertiente occidental de los Andes en Perú. Se redescribe el macho y hembra adultos de basistrigata y se designa su lectotipo.