Erynnis funeralis, commonly known as the funereal duskywing, is a species of butterfly of the family Hesperiidae.

It is found from southern United States (California, Arizona, New Mexico and Texas), south to Argentina and Chile.

Strays can be found north up to northern Illinois, north-eastern Nebraska, central Colorado, southern Nevada and central California.

They are very similar to the mournful duskywing, but can be distinguished by narrower fore wing with a light brown patch along outer edge.

[2] Larvae feed on various plants, including Robinia neomexicana, Medicago hispida, Lotus scoparius, Olneya tesota, Vicia, and Acmispon.