Erynnis tristis

Erynnis tristis, commonly known as the mournful duskywing, is a species of spread-wing skipper in the butterfly family Hesperiidae. It is found in Central America, North America, and South America.^[1][2][3] It is mottled brown with a white fringe on the hind wings. It appears similar to the funereal duskywing, but the mournful duskywing is more likely to appear in urban areas. The larva feeds on young oaks while adults nectar from a variety of wild and garden flowers.^[4][5]

Mournful duskywing, Erynnis tristis

Mournful duskywing
Erynnis tristis tatius Panama
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Hesperiidae
Genus:	Erynnis
Species:	E. tristis
Binomial name
Erynnis tristis (Boisduval, 1852)

Subspecies

These three subspecies belong to the species Erynnis tristis:

• Erynnis tristis pattersoni Burns, 1964
• Erynnis tristis tatius (W. H. Edwards, 1883)
• Erynnis tristis tristis (Boisduval, 1852)