Pelidne Sulphur
Colias pelidne Boisduval & Leconte, [1830]
Family: Pieridae
Subfamily: Coliadinae
Identification: Upperside of male pale yellow with wide black border and small black cell spot. Female white (most common) or yellow; dark border may be incomplete. Underside of hindwing of both sexes with dense black scales.
Wing Span: 1 1/4 - 1 3/4 inches (3.2 - 4.4 cm).
Life History: Males patrol near blueberry and willows for females.
Flight: One flight from late June-July.
Caterpillar Hosts: Blueberry (Vaccinium species) and wintergreen (Gaultheria humifusa) in the heath family (Ericaceae).
Adult Food: Flower nectar.
Habitat: Arctic tundra, subarctic forest openings and meadows.
Range: Northern Rocky Mountains from Alberta south to Wyoming.
Conservation: Not usually required.
NCGR: G5 - Demonstrably secure globally, though it may 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 1 - 24 of 76 verified sightings
Observation date: Jul 01, 2012
Submitted by: RobSimpson
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Mar 17, 2025
Observation date: Aug 30, 2024
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Oct 21, 2024
Observation date: Sep 02, 2023
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Oct 23, 2023
Observation date: Aug 14, 2023
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Aug 25, 2023
Observation date: Aug 12, 2023
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 25, 2023
Observation date: Jul 17, 2021
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: stevekohler
Verified date: Apr 24, 2023
Observation date: Aug 03, 2021
Submitted by: NikkiM
Region: Sublette County, Wyoming, United States
Verified by: James Steen
Verified date: Apr 07, 2023
Observation date: Aug 12, 2022
Submitted by: NikkiM
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Mar 14, 2023
Observation date: Aug 18, 2021
Submitted by: Todd Boland
Region: Newfoundland and Labrador, Canada
Verified by: jmgesell
Verified date: Feb 14, 2023
Observation date: Jul 19, 2020
Submitted by: Todd Boland
Region: Newfoundland and Labrador, Canada
Verified by: jmgesell
Verified date: Feb 14, 2023
Observation date: Aug 16, 2022
Submitted by: Bob Patton
Region: Johnson County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 06, 2023
Observation date: Aug 19, 2022
Submitted by: J_Martineau
Region:
Verified by: J_Martineau
Verified date: Jan 05, 2023
Observation date: Aug 10, 2022
Submitted by: J_Martineau
Region:
Verified by: J_Martineau
Verified date: Dec 16, 2022
Observation date: Aug 14, 2021
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 20, 2021
Observation date: Jul 30, 2021
Submitted by: bjones7777
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Sep 08, 2021
Observation date: Jul 31, 2021
Submitted by: bjones7777
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Sep 08, 2021
Observation date: Jul 10, 2021
Submitted by: NikkiM
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 25, 2021
Observation date: Jul 21, 2020
Submitted by: gasigr
Region: Wallowa County, Oregon, United States
Verified by: Ken Davenport
Verified date: Mar 16, 2021
Observation date: Aug 15, 2020
Submitted by: bellhanley
Region: Big Horn County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 30, 2020
Observation date: Aug 27, 2019
Submitted by: dsperanza
Region: Montana, United States
Verified by: J_Martineau
Verified date: Jan 13, 2020
Observation date: Jul 20, 2019
Submitted by: ncrosbyrd
Region: Fremont County, Wyoming, United States
Verified by: J_Martineau
Verified date: Sep 13, 2019
Observation date: Aug 02, 2004
Submitted by: hydapse
Region: Carbon County, Montana, United States
Verified by: J_Martineau
Verified date: Feb 25, 2019
Observation date: May 31, 2012
Submitted by: Nancy Lea Sandy
Region: Natrona County, Wyoming, United States
Verified by: kent
Verified date: Nov 26, 2012
Observation date: Aug 01, 2010
Submitted by: J_Martineau
Region: Sheridan County, Wyoming, United States
Verified by: stevekohler
Verified date: Feb 10, 2011
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