Mead's Sulphur
Colias meadii W.H. Edwards, 1871
Family: Pieridae
Subfamily: Coliadinae
Identification: Upperside of male deep reddish orange with wide, dull black border; female lighter orange, border containing orange spots. Underside of both sexes greenish-yellow, with hindwing white spot circled in red.
Wing Span: 1 1/2 - 2 inches (3.8 - 5.1 cm).
Life History: Males patrol open tundra for females. Females lay eggs singly on host plant leaves, which are then eaten by the caterpillars. Third-stage caterpillars overwinter.
Flight: One flight from July-August.
Caterpillar Hosts: Plants in the pea family (Fabaceae) including clover (Trifolium) and Astragalus species.
Adult Food: Flower nectar including alpine sunflower and asters.
Habitat: At or near treeline in high mountains, tundra, subalpine meadows.
Range: Restricted to the Rocky Mountains from Alberta south to Colorado.
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 49 - 72 of 123 verified sightings
Observation date: Aug 04, 2016
Submitted by: dkassel
Region: Yellowstone National Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 30, 2016
Observation date: Jul 24, 2013
Submitted by: J_Martineau
Region: Albany County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 12, 2014
Observation date: Jul 18, 2012
Submitted by: swimperi
Region: Colorado, United States
Verified by: mikefisher
Verified date: Oct 05, 2012
Observation date: Aug 22, 2011
Submitted by: J_Martineau
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Nov 27, 2011
Observation date: Aug 04, 2011
Submitted by: xpda
Region: Pitkin County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 22, 2011
Observation date: unknown
Submitted by: RaisingButterfl... (Todd Stout)
Region: Daggett County, Utah, United States
Verified by: BAMONA
Verified date: Aug 24, 2011
Observation date: Jul 09, 2011
Submitted by: cpcdolan
Region: Rio Grande County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 17, 2011
Observation date: unknown
Submitted by: BAMONA
Region:
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jul 24, 1987
Submitted by: legacy.reporter (K. Bagdonas)
Region: Hot Springs County, Wyoming, United States
Verified by: legacy.verifier (P.A. Opler)
Verified date: Mar 09, 2010
Observation date: Aug 19, 2000
Submitted by: legacy.reporter (Will Kerling)
Region: Missoula County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 29, 2008
Observation date: Jul 26, 2000
Submitted by: stevekohler (Steve Kohler)
Region: Deer Lodge County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 29, 2008
Observation date: Jul 29, 2005
Submitted by: stevekohler (Steve Kohler)
Region: Teton County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 29, 2008
Observation date: Jul 26, 2000
Submitted by: stevekohler (Steve Kohler)
Region: Granite County, Montana, United States
Verified by: stevekohler (Steve Kohler)
Verified date: Jan 29, 2008
Observation date: unknown
Submitted by: legacy.reporter
Region: Huerfano County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Madison County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Routt County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Colfax County, New Mexico, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Park County, Colorado, 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: Saguache County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Montezuma County, Colorado, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
Observation date: unknown
Submitted by: legacy.reporter
Region: Rio Grande County, Colorado, 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: Sweet Grass County, Montana, United States
Verified by: legacy.verifier
Verified date: Dec 31, 2004
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