Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Scudder's Duskywing
Erynnis scudderi (Skinner, 1914)

Family: Hesperiidae
Subfamily: Pyrginae
Identification: Hindwing fringes are tipped with white. Upperside is brown with small clear spots in the male, larger spots in the female. 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: Males perch to await females.
Flight: Probably two broods from May-August.
Caterpillar Hosts: Possibly oaks (Quercus species).
Adult Food: Flower nectar.
Habitat: Mountain woodland.
Range: Rare and local in southern Arizona south to Chiapas, Mexico.
Conservation: Populations and habitats in southeastern Arizona should be monitored and action taken if necessary.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: None reported.
Comments: NULL