Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Scudder's Sulphur
Colias scudderi Reakirt, 1865
Family: Pieridae
Subfamily: Coliadinae
Identification: Upper surface of male lemon yellow; dark wide border cut by yellow veins. Females often white, with small black cell spot; border incomplete or lacking. Underside of both sexes dirty green.
Wing Span: 1 1/2 - 2 inches (3.8 - 5.1 cm).
Life History: Males patrol near willows for receptive females. Females lay eggs singly on young host plant leaves. Caterpillars eat leaves. Second-, third-, and fourth-stage caterpillars hibernate.
Flight: One flight from late June-August.
Caterpillar Hosts: Willow shrubs in the willow family (Salicaceae).
Adult Food: Flower nectar.
Habitat: Mountain meadows and willow bogs.
Range: Alaska south through Rocky Mountains to northern New Mexico.
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

Verified Sightings

Displaying 25 - 48 of 67 verified sightings
Observation date: unknown
Submitted by: legacy.reporter
Region: Clear Creek County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Pitkin County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Rio Blanco County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: San Juan County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Huerfano County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Uintah County, Utah, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Douglas County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Eagle County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Delta County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Mineral County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Taos County, New Mexico, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Boulder County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Albany County, Wyoming, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Park County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Submitted by: legacy.reporter
Region: Routt County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Dolores County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Costilla County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: San Miguel County, New Mexico, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Daggett County, Utah, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Jefferson County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Chaffee County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Garfield County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: La Plata County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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Observation date: unknown
Submitted by: legacy.reporter
Region: Custer County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
  Details