Dreamy Duskywing
Erynnis icelus (Scudder & Burgess, 1870)
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Long labial palpi point forward; antennal clubs are pointed. Wings are black; forewing has no transparent spots but is dusted with gray scales and has bands of dark spots. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Wing Span: 1 1/8 - 1 1/2 inches (2.9 - 3.8 cm).
Life History: To seek females, males perch in openings, flats or depressions near woods. Females lay eggs singly on host plant leaves. Caterpillars feed on leaves and rest in leaf nests. Fully-grown caterpillars hibernate in leaf shelters.
Flight: One brood from April to early July; perhaps a rare second brood in the southern Appalachian Mountains.
Caterpillar Hosts: Willows (Salix), poplars, aspens (Populus), and occasionally birch (Betula).
Adult Food: Nectar from flowers of blueberry, wild strawberry, blackberry, Labrador tea, dogbane, New Jersey tea, winter cress, purple vetch, and lupine.
Habitat: Woodland openings or edges.
Range: Boreal North America from the Northwest Territories east across southern Canada to Nova Scotia; south in the western mountains to southern Arizona and southern New Mexico; south in the east to Arkansas, northeastern Alabama, and northern Georgia.
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 49 - 72 of 2182 verified sightings
Observation date: May 26, 2022
Submitted by: hasfitz5
Region: White Pine County, Nevada, United States
Verified by: Ken Davenport
Verified date: Jul 27, 2022
Observation date: May 27, 2022
Submitted by: hasfitz5
Region: White Pine County, Nevada, United States
Verified by: Ken Davenport
Verified date: Jul 25, 2022
Observation date: May 25, 2022
Submitted by: hasfitz5
Region: White Pine County, Nevada, United States
Verified by: Ken Davenport
Verified date: Jul 25, 2022
Observation date: May 28, 2021
Submitted by: Bob Jacobson
Region: Sawyer County, Wisconsin, United States
Verified by: jmgesell
Verified date: Jul 20, 2022
Observation date: Jul 14, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: davidwdroppers
Verified date: Jul 18, 2022
Observation date: Jul 02, 2022
Submitted by: cklindsey
Region: Wallowa County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 05, 2022
Observation date: Jun 22, 2022
Submitted by: pgrew1@unl.edu
Region: Penobscot County, Maine, United States
Verified by: John Calhoun
Verified date: Jun 26, 2022
Observation date: Jun 22, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: davidwdroppers
Verified date: Jun 26, 2022
Observation date: Jun 09, 2022
Submitted by: cklindsey
Region: Garfield County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 13, 2022
Observation date: Jun 10, 2022
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: davidwdroppers
Verified date: Jun 13, 2022
Observation date: Jun 10, 2022
Submitted by: rhedden
Region: Rensselaer County, New York, United States
Verified by: jmgesell
Verified date: Jun 11, 2022
Observation date: May 31, 2022
Submitted by: hiker96
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 03, 2022
Observation date: Jul 10, 2011
Submitted by: Tommie Rogers
Region: Polk County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 10, 2019
Submitted by: ChrissyL
Region: Unicoi County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 08, 2019
Submitted by: ChrissyL
Region: Sullivan County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 08, 2019
Submitted by: ChrissyL
Region: Sullivan County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 08, 2019
Submitted by: ChrissyL
Region: Sullivan County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 04, 2019
Submitted by: ChrissyL
Region: Sullivan County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 29, 2020
Submitted by: webielenberg
Region: Blount County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Mar 28, 2019
Submitted by: ChrissyL
Region: Sullivan County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: Apr 14, 2018
Submitted by: webielenberg
Region: Blount County, Tennessee, United States
Verified by: James Steen
Verified date: Jun 01, 2022
Observation date: May 31, 2022
Submitted by: Eric Hartshaw
Region: Lycoming County, Pennsylvania, United States
Verified by: davidwright
Verified date: Jun 01, 2022
Observation date: Apr 09, 2017
Submitted by: webielenberg
Region: Blount County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: Apr 26, 2017
Submitted by: webielenberg
Region: Sevier County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
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