Edwards' Hairstreak
Satyrium edwardsii (Grote and Robinson, 1867)
Family: Lycaenidae
Subfamily: Theclinae
Identification: One tail on the hindwing. Underside of hindwing pale brown, with postmedian band of dark brown oval spots; blue tail-spot not topped with orange.
Wing Span: 1 1/8 - 1 1/2 inches (3 - 3.8 cm).
Life History: Males perch on trees to watch for females. Eggs are laid in bark crevices of young hosts. Young caterpillars eat buds during the day. Older caterpillars eat leaves at night and hide during the day in ant nests at the base of the host tree. In return for protection, the ants feed on honeydew produced by the caterpillars.
Flight: One flight from June-July in the north, May-July in the south.
Caterpillar Hosts: Scrub oak (Quercus ilicifolia) and occasionally black oak (Q. velutina).
Adult Food: Nectar from various flowers including dogbane, goldenrod, meadowsweet, milkweeds, New Jersey tea, staghorn sumac, and white sweet clover.
Habitat: Oak thickets in rocky open habitats including sand barrens, shale barrens, and limestone ridges.
Range: Eastern United States from southern Canada and southern Maine south to northeast Texas, central Missouri, and northern Georgia.
Conservation: Not usually required.
NCGR: G4 - Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Comments: NULL
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Verified Sightings
Displaying 1 - 24 of 859 verified sightings
Observation date: Jul 15, 2024
Submitted by: chirpus
Region: Albany County, New York, United States
Verified by: jmgesell
Verified date: Dec 11, 2024
Observation date: Jul 07, 2024
Submitted by: dvollmar
Region: Wright County, Minnesota, United States
Verified by: jmgesell
Verified date: Aug 07, 2024
Observation date: Jul 08, 2024
Submitted by: cblazo
Region: Sullivan County, Pennsylvania, United States
Verified by: davidwright
Verified date: Jul 13, 2024
Observation date: Jun 24, 2024
Submitted by: Benjamin Miller
Region: Knox County, Ohio, United States
Verified by: rogerdowner
Verified date: Jun 29, 2024
Observation date: Jun 01, 2024
Submitted by: NaturallyWade
Region: Aiken County, South Carolina, United States
Verified by: Dennis Forsythe
Verified date: Jun 03, 2024
Observation date: Jun 01, 2024
Submitted by: bekkfree
Region: Cowley County, Kansas, United States
Verified by: James Steen
Verified date: Jun 03, 2024
Observation date: May 30, 2024
Submitted by: bekkfree
Region: Cowley County, Kansas, United States
Verified by: James Steen
Verified date: May 30, 2024
Observation date: Jul 26, 2022
Submitted by: hockeybruce7
Region: Monroe County, Pennsylvania, United States
Verified by: davidwright
Verified date: Dec 22, 2022
Observation date: Jun 11, 2022
Submitted by: Shirley Devan
Region: James City County, Virginia, United States
Verified by: drerbium
Verified date: Aug 07, 2022
Observation date: Jun 28, 2022
Submitted by: CincyJeff
Region: Adams County, Ohio, United States
Verified by: rogerdowner
Verified date: Jul 18, 2022
Observation date: Jul 08, 2022
Submitted by: rhedden
Region: Albany County, New York, United States
Verified by: jmgesell
Verified date: Jul 12, 2022
Observation date: Jul 10, 2022
Submitted by: rapids
Region: Ontario, Canada
Verified by: jmgesell
Verified date: Jul 11, 2022
Observation date: Jun 12, 2020
Submitted by: AJ Trently
Region: Davidson County, Tennessee, United States
Verified by: James Steen
Verified date: May 30, 2022
Observation date: Jul 05, 2021
Submitted by: jhdwelly
Region: Barnstable County, Massachusetts, United States
Verified by: jwileyrains
Verified date: Jan 24, 2022
Observation date: Jul 05, 2021
Submitted by: BarbSendelbach
Region: Albany County, New York, United States
Verified by: BarbSendelbach
Verified date: Nov 16, 2021
Observation date: Jul 17, 2021
Submitted by: Ed Rothwell
Region: Allegan County, Michigan, United States
Verified by: rosslayberry
Verified date: Jul 21, 2021
Observation date: Jul 17, 2021
Submitted by: Ed Rothwell
Region: Allegan County, Michigan, United States
Verified by: rosslayberry
Verified date: Jul 21, 2021
Observation date: Jul 15, 2016
Submitted by: bshettler
Region: Manitoba, Canada
Verified by: chalicerae
Verified date: Jul 18, 2021
Observation date: Jul 15, 2016
Submitted by: bshettler
Region: Manitoba, Canada
Verified by: chalicerae
Verified date: Jul 18, 2021
Observation date: Jul 03, 2020
Submitted by: terrymortier
Region: Burnett County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Mar 27, 2021
Observation date: Jul 06, 2019
Submitted by: cyric
Region: Washington County, Rhode Island, United States
Verified by: Harry Pavulaan
Verified date: Mar 06, 2021
Observation date: Jul 11, 2020
Submitted by: rhedden
Region: Albany County, New York, United States
Verified by: rosslayberry
Verified date: Mar 06, 2021
Observation date: Jul 13, 2020
Submitted by: aarongunnar
Region: Juneau County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Feb 27, 2021
Observation date: Jul 17, 2020
Submitted by: Susan McSwain
Region: Nelson County, Virginia, United States
Verified by: drerbium
Verified date: Jan 09, 2021
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