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.
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Verified Sightings
Displaying 73 - 96 of 4288 verified sightings
Observation date: May 24, 2022
Submitted by: Bob Jacobson
Region: Chippewa County, Wisconsin, United States
Verified by: jmgesell
Verified date: Jan 20, 2023
Observation date: Mar 25, 2020
Submitted by: Ritaclements
Region: Bastrop County, Texas, United States
Verified by: jwileyrains
Verified date: Oct 12, 2022
Observation date: Mar 14, 2020
Submitted by: cosmic_cat
Region: Texas, United States
Verified by: jwileyrains
Verified date: Oct 12, 2022
Observation date: Mar 20, 2020
Submitted by: Susan McSwain
Region: Nelson County, Virginia, United States
Verified by: drerbium
Verified date: Sep 28, 2022
Observation date: May 28, 2022
Submitted by: beastbreath
Region: Livingston County, Michigan, United States
Verified by: jwileyrains
Verified date: Sep 06, 2022
Observation date: May 28, 2022
Submitted by: beastbreath
Region: Washtenaw County, Michigan, United States
Verified by: jwileyrains
Verified date: Sep 02, 2022
Observation date: May 24, 2022
Submitted by: Ed Rothwell
Region: Baraga County, Michigan, United States
Verified by: jwileyrains
Verified date: Sep 01, 2022
Observation date: Mar 23, 2022
Submitted by: twofried
Region: Fort Bend County, Texas, United States
Verified by: jwileyrains
Verified date: Aug 23, 2022
Observation date: Apr 16, 2022
Submitted by: Cascade Colors
Region: Cumberland County, Tennessee, United States
Verified by: James Steen
Verified date: Aug 21, 2022
Observation date: May 01, 2021
Submitted by: chherrmann
Region: Virginia, United States
Verified by: drerbium
Verified date: Aug 07, 2022
Observation date: Jun 10, 2022
Submitted by: Bob Jacobson
Region: Chippewa County, Wisconsin, United States
Verified by: jmgesell
Verified date: Aug 02, 2022
Observation date: May 24, 2022
Submitted by: Bob Jacobson
Region: Chippewa County, Wisconsin, United States
Verified by: jmgesell
Verified date: Jul 20, 2022
Observation date: Jun 01, 2022
Submitted by: 185degWest
Region: Beltrami County, Minnesota, United States
Verified by: jmgesell
Verified date: Jul 20, 2022
Observation date: Jul 01, 2022
Submitted by: Tom Wiseman
Region: Champaign County, Illinois, United States
Verified by: rogerdowner
Verified date: Jul 18, 2022
Observation date: Jul 04, 2021
Submitted by: John LeBlanc
Region: Chesterfield County, Virginia, United States
Verified by: drerbium
Verified date: Jun 30, 2022
Observation date: Apr 04, 2022
Submitted by: annegp
Region: Lancaster County, Virginia, United States
Verified by: drerbium
Verified date: Jun 27, 2022
Observation date: Apr 04, 2022
Submitted by: annegp
Region: Lancaster County, Virginia, United States
Verified by: drerbium
Verified date: Jun 27, 2022
Observation date: Apr 29, 2012
Submitted by: K Stilwell
Region: Tazewell County, Virginia, United States
Verified by: drerbium
Verified date: Jun 25, 2022
Observation date: Apr 07, 2021
Submitted by: John LeBlanc
Region: Chesterfield County, Virginia, United States
Verified by: drerbium
Verified date: Jun 25, 2022
Observation date: Jun 11, 2022
Submitted by: Rjfischer
Region: Wayne County, Pennsylvania, United States
Verified by: davidwright
Verified date: Jun 22, 2022
Observation date: Apr 04, 2022
Submitted by: annegp
Region: Lancaster County, Virginia, United States
Verified by: drerbium
Verified date: Jun 21, 2022
Observation date: Apr 08, 2022
Submitted by: annegp
Region: Lancaster County, Virginia, United States
Verified by: drerbium
Verified date: Jun 21, 2022
Observation date: Jun 12, 2022
Submitted by: Team-Chick
Region: Virginia, York County, United States
Verified by: drerbium
Verified date: Jun 21, 2022
Observation date: Mar 27, 2022
Submitted by: Jay Brasher
Region: Lincoln County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 14, 2022
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