Gillette's Checkerspot
Euphydryas gillettii (Barnes, 1897)
Family: Nymphalidae
Subfamily: Nymphalinae
Identification: Upperside of both wings is dark brown with a wide orange-red submarginal band; other spots are orange-red and white.
Wing Span: 1 1/2 - 1 7/8 inches (3.8 - 4.8 cm).
Life History: Adults fly slowly and roost singly in conifers. Males patrol around tops of trees or tall flowers for females. Eggs are laid in batches on undersides of sunlit leaves so that the warmth helps the eggs develop faster. Young caterpillars live together in a silk nest, feeding on leaves and leaf buds. At low elevations, fourth-stage caterpillars hibernate. Populations at higher elevations require two years to complete development; during the first winter, young caterpillars hibernate after feeding for two weeks; during the second winter, fifth-stage caterpillars hibernate.
Flight: One brood from June-August.
Caterpillar Hosts: Plants of the honeysuckle family (Caprifoliaceae) including twin-berry honeysuckle (Lonicera involucrata) and snowberry (Symphoricarpus albus); and the figwort family (Scrophulariaceae) including speedwell (Veronica wormskjoldii).
Adult Food: Flower nectar.
Habitat: Open, moist conifer forests; moist meadows; streamsides.
Range: Very local in southwest Alberta, eastern Idaho, Montana, and western Wyoming.
Conservation: All populations should be monitored and conserved.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Ensure presence of sufficient habitats in appropriate successional condition. Some captive propagation and reintroduction may be necessary.
Comments: NULL
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Verified Sightings
Displaying 1 - 24 of 68 verified sightings
Observation date: Jul 20, 2024
Submitted by: Robert Gorman
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 21, 2024
Observation date: Jul 17, 2020
Submitted by: ASchmierer
Region: Lincoln County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 15, 2020
Observation date: Jul 04, 2020
Submitted by: dsperanza
Region: Powell County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 06, 2020
Observation date: Jul 13, 2019
Submitted by: jimbois
Region: Boise County, Idaho, United States
Verified by: stevekohler
Verified date: Nov 05, 2019
Observation date: Jul 13, 2019
Submitted by: jimbois
Region: Boise County, Idaho, United States
Verified by: stevekohler
Verified date: Nov 05, 2019
Observation date: Jul 25, 2019
Submitted by: ncrosbyrd
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 26, 2019
Observation date: Jul 24, 2019
Submitted by: ncrosbyrd
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 26, 2019
Observation date: Jul 07, 2007
Submitted by: hydapse
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 04, 2019
Observation date: Jun 25, 2016
Submitted by: richtrebbien
Region: Custer County, Idaho, United States
Verified by: stevekohler
Verified date: Sep 20, 2016
Observation date: Jul 01, 2015
Submitted by: cliffweisse
Region: Fremont County, Idaho, United States
Verified by: stevekohler
Verified date: Jul 27, 2015
Observation date: Jul 19, 2014
Submitted by: Hoshaw
Region: Boise County, Idaho, United States
Verified by: J_Martineau
Verified date: Mar 12, 2015
Observation date: Jul 09, 2012
Submitted by: kent
Region: Boise County, Idaho, United States
Verified by: kent
Verified date: Jul 11, 2012
Observation date: Jul 12, 2011
Submitted by: pcastrovillo
Region: Valley County, Idaho, United States
Verified by: kent
Verified date: Mar 19, 2012
Observation date: Jul 12, 2009
Submitted by: pcastrovillo
Region: Valley County, Idaho, United States
Verified by: kent
Verified date: Jan 28, 2012
Observation date: Jul 28, 2011
Submitted by: Christopher Christie
Region: Washington County, Idaho, United States
Verified by: davidwdroppers
Verified date: Jan 09, 2012
Observation date: Jul 28, 2011
Submitted by: Christopher Christie
Region: Washington County, Idaho, United States
Verified by: davidwdroppers
Verified date: Jan 09, 2012
Observation date: Jul 19, 2011
Submitted by: Roland
Region: Alberta, Canada
Verified by: Norbert Kondla
Verified date: Dec 08, 2011
Observation date: unknown
Submitted by: BAMONA (Evi Buckner)
Region: United States
Verified by: BAMONA
Verified date: Oct 03, 2011
Observation date: unknown
Submitted by: BAMONA (Evi Buckner)
Region: United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jun 25, 1931
Submitted by: legacy.reporter
Region: Teton County, Wyoming, United States
Verified by: legacy.verifier (P.A. Opler)
Verified date: Mar 09, 2010
Observation date: Jun 14, 1941
Submitted by: legacy.reporter (E. Lumley)
Region: Cascade County, Montana, United States
Verified by: legacy.verifier (P.A. Opler)
Verified date: Oct 29, 2008
Observation date: Jun 25, 1931
Submitted by: legacy.reporter
Region: Teton County, Wyoming, United States
Verified by: legacy.verifier (P.A. Opler)
Verified date: Oct 29, 2008
Observation date: Jun 24, 1986
Submitted by: legacy.reporter (S.J. Kohler)
Region: Flathead County, Montana, United States
Verified by: legacy.verifier (S.J. Kohler)
Verified date: Oct 29, 2008
Observation date: Jun 14, 2008
Submitted by: legacy.reporter
Region: Bonner County, Idaho, United States
Verified by: legacy.verifier (P.A. Opler)
Verified date: Oct 29, 2008
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