Juvenal's Duskywing (Erynnis juvenalis)
Detailing the physical features, habits, territorial reach and other identifying qualities of the Juvenal's Duskywing.
Updated: 2/13/2018; Authored By Staff Writer; Content ©www.InsectIdentification.org
Common Name: Juvenal's Duskywing
Scientific Name: Erynnis juvenalis
Category: Butterfly or Moth
Size (Adult; Length): 35mm to 50mm (1.37in to 1.95in)
Identifying Colors: brown, white, ivory
Additional Identifiers: flying
One of many Duskywings, the Juvenal's Duskywing is a larger yet more varied species that is commonly found in eastern and southwestern states.
A fast flier, Juvenal's Duskywing is hard to identify the moment its spotted. It resembles other Duskywings and a careful study of its color and pattern are needed to get a correct identification. One version looks a lot like Horace's Duskywing. Add to that, Juvenal's Duskywing individuals have variations in colors and pattern based on what region they are in. To make it even more interesting, males and females are different in color and pattern!
Males perch on plants low to the ground and scan for females. They may return to a familiar perch if frightened away. Adults drink nectar from dandelions as well as plum, blueberry, lilac, wisteria and Carolina vetch blossoms. Caterpillars eat oak tree leaves. Two generations a year is typical in warmer south and southwestern states; one generation is the norm in cooler states. They can be found mainly in the spring in oak woodlands, forests, parks, gardens,