Erynnis juvenalis

Juvenal's Duskywing
Ottawa, Ontario
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Hesperiidae
Genus: Erynnis
Species: E. juvenalis
Binomial name
Erynnis juvenalis
(Fabricius, 1793)

The Juvenal's Duskywing (Erynnis juvenalis) is a butterfly of the Hesperiidae family.

Appearance and distribution

Underside view

Common in eastern North American oak woods from southern Manitoba to southern Quebec and Nova Scotia southward to Texas and Florida. This dark brown skipper is larger than most eastern Duskywings (wingspan: 30 to 37 mm). It has one brood in the spring (May to late June) in the east but two broods in spring and summer in the southwest. Both sexes have two to four white spots on the forewing. The females have greyer forewings and are more boldly marked. Both sexes have two spots near the upper margins of the ventral side of hindwings that are diagnostic of the species.[1][2] Larval foodplant: Oaks

Similar species

References and external links

Wikimedia Commons has media related to Erynnis juvenalis.
  1. Jim P. Brock and K. Kaufman. Kaufman Field Guide to Butterflies of North America, New York, NY:Houghton Mifflin, 2003.
  2. Juvenal's Duskywing, Butterflies of Canada