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 548 verified sightings
Observation date: Mar 19, 2020
Submitted by: alicecas
Region: Contra Costa County, California, United States
Verified by: Ken Davenport
Verified date: Mar 21, 2020
Observation date: Feb 28, 2020
Submitted by: cevmendo
Region: Mendocino County, California, United States
Verified by: Ken Davenport
Verified date: Feb 29, 2020
Observation date: Jul 28, 2019
Submitted by: A_baldini
Region: Larimer County, Colorado, United States
Verified by: A_baldini
Verified date: Feb 24, 2020
Observation date: Feb 07, 2020
Submitted by: sarabseth
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: Feb 09, 2020
Observation date: May 02, 2019
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Feb 02, 2020
Observation date: Aug 21, 2019
Submitted by: stevecary
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 31, 2020
Observation date: Jul 07, 2011
Submitted by: Dwaine Wagoner
Region: Natrona County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jan 17, 2020
Observation date: Aug 25, 2019
Submitted by: tirvine2020
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Dec 02, 2019
Observation date: Aug 16, 2019
Submitted by: pnesterenko
Region: Chaffee County, Colorado, United States
Verified by: A_baldini
Verified date: Oct 20, 2019
Observation date: Jul 22, 2019
Submitted by: Christian.Nunes
Region: Colorado, United States
Verified by: mikefisher
Verified date: Oct 05, 2019
Observation date: Aug 03, 2019
Submitted by: Pheasantboy77
Region: Skamania County, Washington, United States
Verified by: davidwdroppers
Verified date: Aug 05, 2019
Observation date: Apr 19, 2018
Submitted by: I Spy Butterflies
Region: Mendocino County, California, United States
Verified by: Ken Davenport
Verified date: Aug 01, 2019
Observation date: Jul 30, 2019
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Aug 01, 2019
Observation date: Jul 01, 2019
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jul 31, 2019
Observation date: Jul 13, 2019
Submitted by: dsperanza
Region: Montana, United States
Verified by: J_Martineau
Verified date: Jul 16, 2019
Observation date: Jun 18, 2019
Submitted by: Diane R Halpin
Region: Teton County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jun 19, 2019
Observation date: Jun 11, 2019
Submitted by: Lisahug
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Jun 14, 2019
Observation date: May 26, 2019
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: May 28, 2019
Observation date: Apr 27, 2019
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: Apr 28, 2019
Observation date: Apr 28, 2019
Submitted by: Vickie J Anderson
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: Apr 28, 2019
Observation date: Apr 25, 2019
Submitted by: dlister
Region: Kitsap County, Washington, United States
Verified by: davidwdroppers
Verified date: Apr 27, 2019
Observation date: Apr 20, 2019
Submitted by: weflybye
Region: Mason County, Washington, United States
Verified by: davidwdroppers
Verified date: Apr 20, 2019
Observation date: Apr 10, 2019
Submitted by: shastamax
Region: Mendocino County, California, United States
Verified by: Ken Davenport
Verified date: Apr 10, 2019
Observation date: Apr 10, 2019
Submitted by: shastamax
Region: Mendocino County, California, United States
Verified by: Ken Davenport
Verified date: Apr 10, 2019
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