Attributes of Erynnis juvenalis

Juvenal's Duskywing
Erynnis juvenalis (Fabricius, 1793)

Family: Hesperiidae
Subfamily: Pyrginae
Identification: Upperside of male is brown with clear spots, indistinct dark markings, and scattered white hairs; female has larger markings and spots. Underside of hindwing has 2 round pale spots below the apex. 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 15/16 inches (3.2 - 4.9 cm).
Life History: To wait for females, males perch in forest clearings or edges on bare twigs about 3-12 feet above the ground; they will often patrol from these perches. Females lay eggs singly on young leaves and seedlings of the host plants. Caterpillars feed on leaves and rest in nests of rolled or tied leaves; fully-grown caterpillars hibernate.
Flight: One brood from April-June, emerging as early as late January in peninsular Florida.
Caterpillar Hosts: Tree and shrub oaks (Quercus species).
Adult Food: Nectar from flowers of winter cress, dandelion, wild plum, wisteria, blueberry, Carolina vetch, redbud, and lilac.
Habitat: Oak woods or scrub and associated edges or fields.
Range: Nova Scotia and central New England west through southern Manitoba to the Dakotas and northeastern Wyoming; south through most of the eastern United States to Florida, the Gulf states, and Texas. White-fringed populations occur in west Texas, New Mexico, and central Arizona south to central Mexico.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Taxonomy Notes:

Images of Erynnis juvenalis

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Erynnis juvenalis - Erynnis_juvenalis.jpg

Erynnis juvenalis - Erynnis_juvenalis.jpg
Erynnis juvenalis - Erynnis_juvenalis2.jpg

Erynnis juvenalis - Erynnis_juvenalis2.jpg

The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

There are also three base layers: 1. Satellite    2. Normal   3. Hybrid

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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.

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Observation Date Submitter Region Verified Datesort icon
January 01, 1950 legacy.reporter Hidalgo County, New Mexico, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Luna County, New Mexico, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Union County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Warren County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Sussex County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Somerset County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Passaic County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Salem County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Ocean County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Morris County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Monmouth County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Mercer County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Middlesex County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Hunterdon County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Gloucester County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cape May County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cumberland County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Essex County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Camden County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Burlington County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Atlantic County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Bergen County, New Jersey, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Strafford County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Rockingham County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Merrimack County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Hillsborough County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cheshire County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Grafton County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Carroll County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Belknap County, New Hampshire, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Washington County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Sarpy County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Rock County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Nemaha County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cass County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Colfax County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Douglas County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Dodge County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Knox County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Keya Paha County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cherry County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Brown County, Nebraska, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Winston County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Tuscaloosa County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Jackson County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Madison County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Coosa County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter DeKalb County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cleburne County, Alabama, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Cherokee County, Alabama, United States December 31, 2004 Details