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:
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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
March 23, 2017 Jonathan Clark La Salle Parish, Louisiana, United States March 28, 2017 Details
March 25, 2017 Jonathan Clark La Salle Parish, Louisiana, United States March 28, 2017 Details
March 26, 2017 Jeff Trahan McIntosh County, Oklahoma, United States March 27, 2017 Details
March 25, 2017 StaceyWhetstone Knox County, Tennessee, United States March 26, 2017 Details
February 05, 2017 kchiasson Baldwin County, Alabama, United States March 13, 2017 Details
February 18, 2017 cosmic_cat Texas, Smith County, United States March 13, 2017 Details
February 25, 2017 cosmic_cat Harrison County, Texas, United States March 13, 2017 Details
February 23, 2017 Jonathan Clark La Salle Parish, Louisiana, United States March 13, 2017 Details
March 01, 2017 gpstewart Texas, Travis County, United States March 13, 2017 Details
March 04, 2017 jrrigby Lafayette County, Mississippi, United States March 13, 2017 Details
March 10, 2017 cosmic_cat Texas, United States, Upshur County March 13, 2017 Details
March 12, 2017 cosmic_cat Harrison County, Texas, United States March 13, 2017 Details
March 10, 2017 CA Ivy Sebastian County, Arkansas, United States March 11, 2017 Details
May 24, 2016 scwilso35 Preston County, West Virginia, United States March 10, 2017 Details
April 30, 2016 JohnBoback Preston County, West Virginia, United States February 28, 2017 Details
March 12, 2016 gpstewart Texas, McCulloch County, United States January 08, 2017 Details
March 12, 2016 Laurie Sheppard Grayson County, Texas, United States January 08, 2017 Details
March 26, 2016 cosmic_cat Hunt County, Texas, United States January 08, 2017 Details
April 16, 2016 hiker96 Leavenworth County, Kansas, United States January 08, 2017 Details
May 14, 2016 D. Dodd Texas, United States, Val Verde County January 08, 2017 Details
May 30, 2016 cosmic_cat Texas, United States, Wood County January 08, 2017 Details
May 19, 2013 jjweber Texas, San Jacinto County, United States January 08, 2017 Details
May 12, 2015 sh11 Ontario, Canada November 22, 2016 Details
April 29, 2015 birder89 Lawrence County, Ohio, United States September 18, 2016 Details
April 23, 2015 birder89 Lawrence County, Ohio, United States September 18, 2016 Details
June 04, 2016 johngor Ontario, Canada September 03, 2016 Details
May 23, 2016 BeaLaporte Ontario, Canada June 24, 2016 Details
June 11, 2016 BeaLaporte Ontario, Canada June 24, 2016 Details
June 13, 2016 sh11 Ontario, Canada June 20, 2016 Details
June 17, 2016 jvkopple2 Kalkaska County, Michigan, United States June 18, 2016 Details
May 30, 2016 TPeterson Oscoda County, Michigan, United States June 13, 2016 Details
June 02, 2016 TPeterson Benzie County, Michigan, United States June 13, 2016 Details
April 29, 2016 K Stilwell Tazewell County, Virginia, United States June 12, 2016 Details
May 26, 2016 Sue Orlowski Botetourt County, Virginia, United States June 12, 2016 Details
April 02, 2016 ncrosbyrd Rockdale County, Georgia, United States June 11, 2016 Details
April 02, 2016 ncrosbyrd Rockdale County, Georgia, United States June 11, 2016 Details
June 06, 2016 rocksnstars Oxford County, Maine, United States June 07, 2016 Details
June 01, 2016 cblazo Franklin County, Pennsylvania, United States June 02, 2016 Details
May 31, 2016 whhowe Ontario County, New York, United States June 02, 2016 Details
May 26, 2016 Chet Gottfried Centre County, Pennsylvania, United States May 28, 2016 Details
May 27, 2016 jvkopple2 Kalkaska County, Michigan, United States May 28, 2016 Details
July 26, 2015 sh11 Ontario, Canada May 20, 2016 Details
April 29, 2016 sas27397 Tazewell County, Virginia, United States May 11, 2016 Details
April 26, 2016 jtylerbell Anne Arundel County, Maryland, United States May 11, 2016 Details
April 24, 2016 Saturn Middlesex County, Massachusetts, United States May 04, 2016 Details
May 02, 2016 Paul Kipling Berkeley County, West Virginia, United States May 04, 2016 Details
April 23, 2016 cblazo Franklin County, Pennsylvania, United States April 30, 2016 Details
April 04, 2016 wjshawiii Greene County, Virginia, United States April 27, 2016 Details
April 10, 2016 John LeBlanc Chesterfield County, Virginia, United States April 27, 2016 Details
April 18, 2016 jwilkinson Carroll County, Maryland, United States April 27, 2016 Details