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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The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
Instructions: Click on the map and move your mouse to pan.
Zoom by using the plus [+] and minus [-] on the left side of the map.
To change which map layers are displayed, click on the plus sign [+] on the right side of the map.
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.
| Observation Date | Submitter | Region |
Verified Date |
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June 12, 2013 | doris potter | Quebec, Canada | June 17, 2013 | Details |
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June 10, 2013 | Crystal Boyd | Sherburne County, Minnesota, United States | June 15, 2013 | Details |
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June 12, 2013 | David Allen Jones | Sawyer County, Wisconsin, United States | June 15, 2013 | Details |
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June 02, 2013 | BeaLaporte | Ontario, Canada | June 03, 2013 | Details |
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June 02, 2013 | BeaLaporte | Ontario, Canada | June 03, 2013 | Details |
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May 25, 2013 | soluslupus13 | Ontario, Canada | June 01, 2013 | Details |
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May 26, 2013 | Dave Kinney | Wexford County, Michigan, United States | May 31, 2013 | Details |
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May 30, 2013 | beastbreath | Ingham County, Michigan, United States | May 31, 2013 | Details |
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May 31, 2013 | mrcnaturally | Rockland County, New York, United States | May 31, 2013 | Details |
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April 28, 2013 | TSims | Lancaster County, Pennsylvania, United States | May 29, 2013 | Details |
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May 06, 2013 | AngelaCoco | Luzerne County, Pennsylvania, United States | May 29, 2013 | Details |
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May 05, 2013 | TSims | Lancaster County, Pennsylvania, United States | May 29, 2013 | Details |
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May 05, 2013 | TSims | Lancaster County, Pennsylvania, United States | May 29, 2013 | Details |
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May 06, 2013 | BigMcC62 | Westmoreland County, Pennsylvania, United States | May 29, 2013 | Details |
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May 18, 2013 | von40827 | Leslie County, Kentucky, United States | May 19, 2013 | Details |
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March 17, 2013 | Lois Stacey | Georgia, United States, Wilkes County | May 13, 2013 | Details |
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February 27, 2013 | agjackson1 | Muscogee County, Georgia, United States | May 13, 2013 | Details |
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May 13, 2013 | von40827 | Leslie County, Kentucky, United States | May 13, 2013 | Details |
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May 12, 2013 | Doug Bruce | Bledsoe County, Tennessee, United States | May 12, 2013 | Details |
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May 08, 2013 | BSaylor | Stark County, Ohio, United States | May 11, 2013 | Details |
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April 27, 2013 | mrcnaturally | Westchester County, New York, United States | May 10, 2013 | Details |
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April 26, 2013 | tomfishburn | Hocking County, Ohio, United States | May 01, 2013 | Details |
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April 25, 2013 | Axarus | Franklin County, Massachusetts, United States | April 30, 2013 | Details |
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April 27, 2013 | cobal2913 | Ross County, Ohio, United States | April 29, 2013 | Details |
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March 17, 2013 | Ken Cheeks | Aiken County, South Carolina, United States | April 23, 2013 | Details |
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April 15, 2013 | Doug Bruce | Hardin County, Tennessee, United States | April 23, 2013 | Details |
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April 17, 2013 | Doug Bruce | Benton County, Tennessee, United States | April 22, 2013 | Details |
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April 20, 2013 | CA Ivy | Adair County, Oklahoma, United States | April 21, 2013 | Details |
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April 06, 2013 | Nancee Cobb | Washington County, Florida, United States | April 17, 2013 | Details |
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April 16, 2013 | Doug Bruce | Houston County, Tennessee, United States | April 17, 2013 | Details |
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April 12, 2013 | CA Ivy | Sebastian County, Arkansas, United States | April 16, 2013 | Details |
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April 12, 2013 | CA Ivy | Sebastian County, Arkansas, United States | April 16, 2013 | Details |
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April 13, 2013 | dspicer | Hamilton County, Tennessee, United States | April 16, 2013 | Details |
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April 13, 2013 | CA Ivy | Adair County, Oklahoma, United States | April 16, 2013 | Details |
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April 13, 2013 | Brett Budach | Benton County, Missouri, United States | April 15, 2013 | Details |
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April 07, 2013 | Nymphalis antiopa | Cumberland County, Virginia, United States | April 14, 2013 | Details |
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March 28, 2013 | Mike Dillon | Ouachita County, Arkansas, United States | April 07, 2013 | Details |
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April 20, 2012 | K Stilwell | Russell County, Virginia, United States | April 05, 2013 | Details |
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November 22, 2012 | jeffmci9 | Texas, Travis County, United States | March 21, 2013 | Details |
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April 14, 2010 | gunhilda | Osage County, Oklahoma, United States | March 12, 2013 | Details |
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April 20, 2012 | K Stilwell | Tazewell County, Virginia, United States | February 04, 2013 | Details |
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June 19, 2012 | adamschaffer | Garland County, Arkansas, United States | January 03, 2013 | Details |
| March 04, 2012 | vitaly charny (Vitaly Charny) | Shelby County, Alabama, United States | December 01, 2012 | Details | |
| March 04, 2012 | legacy.reporter (Kazuo Inagaki) | Bibb County, Alabama, United States | December 01, 2012 | Details | |
| March 06, 2012 | vitaly charny (Vitaly Charny) | Bibb County, Alabama, United States | December 01, 2012 | Details | |
| March 06, 2012 | vitaly charny (Vitaly Charny) | Perry County, Alabama, United States | December 01, 2012 | Details | |
| March 07, 2012 | vitaly charny (Vitaly Charny) | Monroe County, Alabama, United States | December 01, 2012 | Details | |
| March 10, 2012 | vitaly charny (Vitaly Charny) | Tuscaloosa County, Alabama, United States | December 01, 2012 | Details | |
| March 17, 2012 | vitaly charny (Vitaly Charny) | Colbert County, Alabama, United States | December 01, 2012 | Details | |
| March 18, 2012 | vitaly charny (Vitaly Charny) | Colbert County, Alabama, United States | December 01, 2012 | Details |
