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)

Erynnis juvenalis, the Juvenal's duskywing, is a butterfly of the family Hesperiidae.

Appearance and distribution

Underside view

It is 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 grayer 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 food plant: oaks

Similar species

References

  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
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