Pink-edged Sulphur
Colias interior Scudder, 1862
Family: Pieridae
Subfamily: Coliadinae
Identification: Both sexes with conspicuous pink wing edges. Male yellow; female yellow or white (very rarely). Upperside of male with black border; border on female may be incomplete or only seen at tip of wing. Underside of hindwing clear yellow with single silver cell spot circled in pink.
Wing Span: 1 1/2 - 2 5/8 inches (3.9 - 6.6 cm).
Life History: Males patrol with a slow flight for females. Eggs are laid in midsummer on blueberry leaves, and young caterpillars overwinter. Most feeding occurs the following spring.
Flight: One flight from June-August.
Caterpillar Hosts: Various blueberry plants (Vaccinium species) in the heath family (Ericaceae).
Adult Food: Nectar from flowers of bristly sarsaparilla and orange hawkweed.
Habitat: Shrubby openings in woods, bogs, or scrub areas where Ericaceae grows; often in burned or logged sites.
Range: From British Columbia and eastern Oregon east through the Great Lakes area to northern New England. Isolated population in central Appalachians of northeast Pennsylvania, western Maryland, eastern West Virginia, and northwest Virginia.
Conservation: Mountain populations of southern Appalachians should be monitored.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: Investigate habitat management needs,if any, in southern Appalachian habitats.
Comments: NULL
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Verified Sightings
Displaying 121 - 144 of 380 verified sightings
Observation date: Aug 05, 2014
Submitted by: dpgbfly1
Region: Roseau County, Minnesota, United States
Verified by: Tom Middagh
Verified date: Mar 15, 2015
Observation date: Jun 26, 2014
Submitted by: webielenberg
Region: Bayfield County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Sep 04, 2014
Observation date: Jul 03, 2014
Submitted by: Robert Morin
Region: Quebec, Canada
Verified by: Jim Edsall
Verified date: Jul 17, 2014
Observation date: Jul 03, 2014
Submitted by: Robert Morin
Region: Quebec, Canada
Verified by: Jim Edsall
Verified date: Jul 17, 2014
Observation date: Jul 27, 2013
Submitted by: ellenjones6
Region: Franklin County, New York, United States
Verified by: rosslayberry
Verified date: Mar 25, 2014
Observation date: Jul 12, 2013
Submitted by: ellenjones6
Region: Franklin County, New York, United States
Verified by: rosslayberry
Verified date: Mar 25, 2014
Observation date: Jul 06, 2013
Submitted by: ellenjones6
Region: Franklin County, New York, United States
Verified by: rosslayberry
Verified date: Mar 22, 2014
Observation date: Jul 12, 2013
Submitted by: ellenjones6
Region: Franklin County, New York, United States
Verified by: rosslayberry
Verified date: Mar 22, 2014
Observation date: Aug 13, 2013
Submitted by: jim8435wisc
Region: Clark County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Sep 19, 2013
Observation date: Aug 04, 2013
Submitted by: MTmariposa
Region: Missoula County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 13, 2013
Observation date: Jul 05, 2011
Submitted by: WestCoastLady
Region: Missoula County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 04, 2013
Observation date: Jul 21, 2013
Submitted by: David Trently
Region: Newfoundland and Labrador, Canada
Verified by: rosslayberry
Verified date: Jul 30, 2013
Observation date: Jun 27, 2013
Submitted by: Jody
Region: Ontario, Canada
Verified by: rosslayberry
Verified date: Jun 27, 2013
Observation date: Jul 27, 2012
Submitted by: plex1ppus
Region: Lincoln County, Montana, United States
Verified by: stevekohler
Verified date: Sep 17, 2012
Observation date: Jun 21, 2012
Submitted by: Jdammarell
Region: Pend Oreille County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 22, 2012
Observation date: May 29, 2012
Submitted by: jim8435wisc
Region: Jackson County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: May 31, 2012
Observation date: May 26, 2012
Submitted by: butterflygirl_1026
Region: St. Louis County, Minnesota, United States
Verified by: Tom Middagh
Verified date: May 31, 2012
Observation date: Jun 29, 2009
Submitted by: pcastrovillo
Region: Valley County, Idaho, United States
Verified by: kent
Verified date: Feb 03, 2012
Observation date: Jun 05, 2009
Submitted by: jim8435wisc
Region: Jackson County, Wisconsin, United States
Verified by: Tom Middagh
Verified date: Nov 25, 2011
Observation date: Jun 15, 2011
Submitted by: franpope
Region: Tucker County, West Virginia, United States
Verified by: curtis.lehman
Verified date: Jun 24, 2011
Observation date: Jun 15, 2011
Submitted by: franpope
Region: Tucker County, West Virginia, United States
Verified by: curtis.lehman
Verified date: Jun 24, 2011
Observation date: Jun 13, 2011
Submitted by: Cheryl Jennings
Region: Tucker County, West Virginia, United States
Verified by: curtis.lehman
Verified date: Jun 23, 2011
Observation date: May 14, 2000
Submitted by: legacy.reporter (Moran, Michael)
Region: Muskegon County, Michigan, United States
Verified by: Ranger Steve Mueller (Steven J. Mueller)
Verified date: May 01, 2011
Observation date: Jul 18, 2006
Submitted by: legacy.reporter (Pfeiffer, Bryan)
Region: Essex County, Vermont, United States
Verified by: legacy.verifier (VBS staff)
Verified date: May 01, 2011
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