Thicket Hairstreak
Callophrys spinetorum (Hewitson, 1867)
Family: Lycaenidae
Subfamily: Theclinae
Identification: Tailed. Upperside steel-blue. Underside reddish brown; hindwing with white postmedian band which forms a W near tails.
Wing Span: 1 - 1 1/4 inches (2.5 - 3.2 cm).
Life History: Males perch in tall trees to find receptive females. Eggs are laid singly on mistletoe and caterpillars eat all external parts of it. Chrysalids hibernate in the mistletoe mass.
Flight: One flight from May-August.
Caterpillar Hosts: Dwarf mistletoes (Arceuthobium species), in the Loranthaceae family, which grow on juniper, pine, and fir trees.
Adult Food: Flower nectar.
Habitat: Pinyon-juniper forest, mixed woodland, coniferous forest.
Range: Usually local and rare. British Columbia southeast through Rocky Mountains to New Mexico and into Mexico; south through California into Baja California.
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: Not reported.
Comments: NULL
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Verified Sightings
Displaying 1 - 24 of 544 verified sightings
Observation date: May 25, 2026
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jun 04, 2026
Observation date: May 22, 2026
Submitted by: jrmbutterfly
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: May 25, 2026
Observation date: May 14, 2026
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: May 16, 2026
Observation date: May 11, 2026
Submitted by: Marta Reece
Region: Sierra County, New Mexico, United States
Verified by: stevecary
Verified date: May 11, 2026
Observation date: Apr 20, 2026
Submitted by: topper72
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 22, 2026
Observation date: Apr 17, 2026
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 18, 2026
Observation date: Mar 21, 2026
Submitted by: Robert Gorman
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Apr 12, 2026
Observation date: Apr 03, 2026
Submitted by: DeepSkyKelly
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 04, 2026
Observation date: Jun 11, 2025
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 15, 2025
Observation date: Jun 09, 2025
Submitted by: ezeemonee
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 15, 2025
Observation date: Apr 09, 2025
Submitted by: sausubel
Region: Pima County, Arizona, United States
Verified by: John Saba
Verified date: May 19, 2025
Observation date: Apr 14, 2025
Submitted by: Dogoszhi
Region: Bernalillo County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 14, 2025
Observation date: Apr 08, 2025
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 14, 2025
Observation date: Apr 11, 2025
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 14, 2025
Observation date: Mar 29, 2025
Submitted by: bonfrey
Region: Socorro County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 14, 2025
Observation date: Jun 29, 1988
Submitted by: papilio1
Region: Lyon County, Nevada, United States
Verified by: Ken Davenport
Verified date: Mar 10, 2025
Observation date: Aug 04, 2024
Submitted by: ezeemonee
Region: Kern County, California, United States
Verified by: Ken Davenport
Verified date: Aug 05, 2024
Observation date: Jun 30, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 25, 2024
Observation date: Jun 26, 2024
Submitted by: k.d.stutzman
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jul 18, 2024
Observation date: Jun 06, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 01, 2024
Observation date: May 23, 2024
Submitted by: MaryAnn Friedman
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 30, 2024
Observation date: Jun 26, 2023
Submitted by: MaryAnn Friedman
Region: Park County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 30, 2024
Observation date: May 11, 2022
Submitted by: MaryAnn Friedman
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 30, 2024
Observation date: Jun 06, 2021
Submitted by: MaryAnn Friedman
Region: El Paso County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 30, 2024
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