Giant Sulphur
Colias gigantea Strecker, 1900
Family: Pieridae
Subfamily: Coliadinae
Identification: Upper surface of male yellow with narrow black borders; lower surface without submarginal black spots. Female with 2 forms, yellow or white; both may have black border reduced or lacking.
Wing Span: 2 - 2 3/4 inches (5.1 - 7 cm).
Life History: Third-stage caterpillars overwinter.
Flight: One flight from June-July.
Caterpillar Hosts: Dwarf willow (Salix reticulata).
Adult Food: Flower nectar.
Habitat: Willow bogs.
Range: Alaska south along Rocky Mountains to Wyoming.
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: Not reported.
Comments: NULL
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Verified Sightings
Displaying 25 - 37 of 37 verified sightings
Observation date: unknown
Submitted by: legacy.reporter
Region: Park County, Wyoming, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Latah County, Idaho, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Lake County, Minnesota, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Beaverhead County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Fremont County, Wyoming, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Missoula County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Lewis And Clark County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Gallatin County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Teton County, Wyoming, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Lemhi County, Idaho, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Flathead County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Deer Lodge County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Johnson County, Wyoming, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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