Erynnis tristis

Similar to Erynnis funeralis (funereal duskywing), but more frequently encountered in urban and suburban settings. The white hindwing fringe is a key visual marker. Definitive separation from closely related Erynnis species may require examination of genitalia or detailed wing pattern analysis.

Mottled brown wings with a white fringe on the hindwings. As a spread-wing skipper, it perches with wings held partially open rather than folded vertically.

Occurs in diverse environments including oak woodlands, scrublands, and notably urban and suburban areas. Shows greater tolerance for developed landscapes than some congeners.

Documented from North America, Central America, and South America. GBIF records confirm presence across Middle America, North America, and South America.

Larvae feed on young oak leaves (Quercus spp.). Adults nectar from a variety of wild and cultivated flowers.

• Quercus - larval hostyoung foliage

Adults are active nectarers at flowers. Urban populations demonstrate behavioral flexibility in utilizing anthropogenic resources.

Adults serve as pollinators through nectar-feeding activities. Larvae function as herbivores on oak foliage.

Frequently observed in gardens and urban green spaces, making it one of the more accessible duskywing species for butterfly watchers. No documented economic or agricultural significance.

• Erynnis funeralisNearly identical wing pattern; distinguished by habitat preference (E. tristis more urban) and subtle wing markings

• urban-adapted
• oak-associated
• skipper

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life