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 1 - 24 of 2182 verified sightings
Observation date: Jun 15, 2012
Submitted by: papilio1
Region: Sierra County, California, United States
Verified by: Ken Davenport
Verified date: Sep 03, 2024
Observation date: May 22, 2024
Submitted by: Joshua C
Region: Rio Arriba County, New Mexico, United States
Verified by: stevecary
Verified date: Aug 26, 2024
Observation date: Jun 21, 2023
Submitted by: dvollmar
Region: Lucas County, Ohio, United States
Verified by: rogerdowner
Verified date: Aug 16, 2024
Observation date: May 29, 2024
Submitted by: dvollmar
Region: Berkshire County, Massachusetts, United States
Verified by: jwileyrains
Verified date: Aug 09, 2024
Observation date: May 31, 2024
Submitted by: RNeilson
Region: Alberta, Canada
Verified by: J_Martineau
Verified date: Jul 29, 2024
Observation date: Jun 07, 2024
Submitted by: Lyle R
Region: Boulder County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 22, 2024
Observation date: May 29, 2024
Submitted by: billmaciejko
Region: Manitoba, Canada
Verified by: chalicerae
Verified date: Jul 16, 2024
Observation date: Jul 01, 2024
Submitted by: clblaney
Region: Okanogan County, Washington, United States
Verified by: davidwdroppers
Verified date: Jul 13, 2024
Observation date: Jun 15, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 04, 2024
Observation date: Jun 12, 2024
Submitted by: Cascade Colors
Region: Summit County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 02, 2024
Observation date: Jun 17, 2024
Submitted by: twofried
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 18, 2024
Observation date: Jun 07, 2024
Submitted by: dfagan746
Region: Jefferson County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jun 08, 2024
Observation date: May 26, 2024
Submitted by: tjunderwood
Region: Berks County, Pennsylvania, United States
Verified by: davidwright
Verified date: May 29, 2024
Observation date: May 26, 2024
Submitted by: DeepSkyKelly
Region: Union County, New Mexico, United States
Verified by: stevecary
Verified date: May 28, 2024
Observation date: May 20, 2024
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: May 22, 2024
Observation date: May 14, 2024
Submitted by: Allison Barta
Region: Cass County, Minnesota, United States
Verified by: jmgesell
Verified date: May 16, 2024
Observation date: Apr 29, 2024
Submitted by: gjkoppel
Region: Butler County, Pennsylvania, United States
Verified by: davidwright
Verified date: May 02, 2024
Observation date: Apr 25, 2024
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: May 01, 2024
Observation date: Apr 22, 2024
Submitted by: CincyJeff
Region: Highland County, Ohio, United States
Verified by: rogerdowner
Verified date: Apr 28, 2024
Observation date: Jun 17, 2023
Submitted by: stevecary
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Dec 03, 2023
Observation date: Jul 16, 2023
Submitted by: ezeemonee
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 20, 2023
Observation date: May 17, 2018
Submitted by: jrtindall
Region: Davis County, Utah, United States
Verified by: James Steen
Verified date: Sep 02, 2023
Observation date: Jun 07, 2017
Submitted by: bvlusa
Region: Salt Lake County, Utah, United States
Verified by: James Steen
Verified date: Sep 02, 2023
Observation date: May 23, 2023
Submitted by: bsiverhus
Region: Roseau County, Minnesota, United States
Verified by: jmgesell
Verified date: Aug 17, 2023
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