Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Afranius Duskywing
Erynnis afranius (Lintner, 1878)

Family: Hesperiidae
Subfamily: Pyrginae
Identification: Hindwing fringes are pale-tipped. Upperside is dark brown; forewing has abundant pale overscaling and several clear spots. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 1/4 - 1 3/8 inches (3.2 - 3.5 cm).
Life History: To seek females, males perch in gullies and swales during the day. Females lay eggs singly under leaves of the host plant.
Flight: Several flights from March-August in southern California; two flights from May-August in the rest of the range.
Caterpillar Hosts: Various legumes including deerweed (Lotus scoparius), lupine (Lupinus species), and milkvetch (Astragalus species).
Adult Food: Flower nectar.
Habitat: Open woodlands, edges and openings in forests, prairie.
Range: Montana and North Dakota south through the mountains to southern California, Arizona, New Mexico, and Mexico.
Conservation: Not usually required.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL
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