Juvenal's Duskywing
Common NameJuvenal's Duskywing
Scientific NameErynnis juvenalis
FamilyHesperiidae
SubfamilyPyrginae
Wingspan (mm)32
Wing Patternsolid
Primary Colorsdark brown, gray, white
HabitatDeciduous woodlands, forest edges, clearings, oak savannas
Geographic RangeEastern North America, from southern Canada south to Florida and west to eastern Texas and Nebraska
Host Plantsvarious oak species (Quercus spp.)
Flight PeriodApril to June (univoltine)
Flight Stylegliding
Conservation Statusleast-concern
Lifecycle NotesEggs are laid singly on oak leaves. Larvae feed on oak, creating leaf shelters, and overwinter as mature larvae or pupae within these shelters. Adults emerge in early spring.
Identification TipsDistinguished from similar duskywings by the presence of two distinct white spots on the forewing underside (postmedian band) and the overall mottled appearance. Males possess a prominent costal fold on the forewing.
Description
A medium-sized duskywing with dark brown, mottled wings. The ventral side, as shown, reveals a purplish-brown hindwing with a row of indistinct dark spots, and the forewing has several small, translucent white spots.
