Margined White
Pieris marginalis Scudder, 1861
Family: Pieridae
Subfamily: Pierinae
Identification: Summer form is pure white above and below; spring form has black-tipped upper forewing. Underside of hindwing and apex of forewing have veins edged with yellow-green or gray-green.
Wing Span: 1 1/2 - 2 1/4 inches (3.8 - 5.7 cm).
Life History: Males patrol for receptive females. Eggs are laid singly on underside of host plant leaves on which the caterpillars feed. Chrysalis hibernates.
Flight: Two flights from February-September in the West.
Caterpillar Hosts: Various native plants in the mustard (Brassicaceae) family.
Adult Food: Nectar from flowers of the mustard family and other plants.
Habitat: Forests, meadows, deciduous woods, streamsides.
Range: Southern British Columbia and Alberta south to central California and southern New Mexico; east to eastern Wyoming and eastern Colorado.
Conservation: Not usually required.
NCGR:
Management Needs: Study effects of logging and grazing.
Comments: NULL
Verified Sightings
Displaying 1 - 24 of 632 verified sightings
Observation date: Jul 27, 2022
Submitted by: topper72
Region: Sandoval County, New Mexico, United States
Verified by: stevecary
Verified date: Feb 03, 2023
Observation date: May 18, 2022
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 16, 2023
Observation date: Jul 04, 2022
Submitted by: J_Martineau
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Dec 05, 2022
Observation date: Jul 28, 2022
Submitted by: Dobber31
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: Oct 22, 2022
Observation date: Jun 11, 2019
Submitted by: Liz Osborn
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 16, 2022
Observation date: Jul 06, 2019
Submitted by: Liz Osborn
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 14, 2022
Observation date: Jul 22, 2019
Submitted by: Liz Osborn
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 14, 2022
Observation date: Aug 08, 2022
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Sep 10, 2022
Observation date: Aug 05, 2020
Submitted by: Idalgit
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Sep 10, 2022
Observation date: Jun 21, 2022
Submitted by: LesMor702
Region: Fremont County, Idaho, United States
Verified by: stevekohler
Verified date: Aug 10, 2022
Observation date: Jul 20, 2022
Submitted by: tjunderwood
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Aug 09, 2022
Observation date: Jul 12, 2022
Submitted by: cindi
Region: Gallatin County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 23, 2022
Observation date: Jul 11, 2022
Submitted by: sandyleapt
Region: Benton County, Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 15, 2022
Observation date: Jul 04, 2022
Submitted by: Jon Kindschy
Region: Gunnison County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 11, 2022
Observation date: Jul 09, 2022
Submitted by: Pheasantboy77
Region: Gallatin County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 11, 2022
Observation date: Jul 09, 2022
Submitted by: Pheasantboy77
Region: Gallatin County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 11, 2022
Observation date: Jul 09, 2022
Submitted by: Pheasantboy77
Region: Gallatin County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 11, 2022
Observation date: Jun 28, 2022
Submitted by: Cascade Colors
Region: Boulder County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 08, 2022
Observation date: Jul 05, 2022
Submitted by: twofried
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 08, 2022
Observation date: Jun 22, 2022
Submitted by: Cascade Colors
Region: Park County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 06, 2022
Observation date: Jul 03, 2022
Submitted by: tjay13
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 06, 2022
Observation date: Jul 04, 2022
Submitted by: Joshua C
Region: Bernalillo County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 05, 2022
Observation date: Jun 07, 2022
Submitted by: hiker96
Region: Thurston County, Washington, United States
Verified by: davidwdroppers
Verified date: Jun 09, 2022
Observation date: May 29, 2022
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: May 30, 2022
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