Spring White
Pontia sisymbrii (Boisduval, 1852)
Family: Pieridae
Subfamily: Pierinae
Identification: Upperside of both wings with dark veins on white to creamy yellow background; front wing cell bar is narrow. Veins of underside of hindwing may be edged widely with olive.
Wing Span: 1 1/4 - 1 3/4 inches (3 - 4.5 cm).
Life History: Males patrol hilltops, ridges, or bottoms of canyons in search of females. Eggs are laid singly on any part of the host plants. Young caterpillars feed on leaves, older ones on flowers. Chrysalids hibernate.
Flight: One flight from February-July.
Caterpillar Hosts: Plants in the mustard family (Brassicaceae) including hedge mustard (Sisymbrium), rock cresses (Arabis), and tansy-mustard (Descurainia) species.
Adult Food: Not reported.
Habitat: Desert hills and other dry slopes, rocky canyons and outcrops, roadsides, open coniferous forests.
Range: British Columbia south to Baja California, east to western Nebraska and western South Dakota.
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: None noted.
Comments: NULL
Verified Sightings
Displaying 1 - 24 of 519 verified sightings
Observation date: May 10, 2018
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 09, 2018
Observation date: May 21, 2018
Submitted by: icosahedron
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: May 22, 2018
Observation date: Apr 02, 2018
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 16, 2018
Observation date: Apr 06, 2018
Submitted by: Paul Prappas
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Apr 10, 2018
Observation date: Mar 18, 2018
Submitted by: ncrosbyrd
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Mar 29, 2018
Observation date: Mar 19, 2018
Submitted by: ncrosbyrd
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Mar 29, 2018
Observation date: Feb 27, 2018
Submitted by: Christian.Nunes
Region: Boulder County, Colorado, United States
Verified by: A_baldini
Verified date: Feb 28, 2018
Observation date: Mar 09, 2005
Submitted by: Martin Reid
Region: El Paso County, Texas, United States
Verified by: stomlins701
Verified date: Jan 29, 2018
Observation date: Apr 21, 2017
Submitted by: papilio1
Region: Washoe County, Nevada, United States
Verified by: Ken Davenport
Verified date: May 30, 2017
Observation date: Feb 25, 2017
Submitted by: diwalks2@gmail.com
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Mar 04, 2017
Observation date: May 28, 2015
Submitted by: JoseBonner
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Feb 28, 2017
Observation date: May 28, 2015
Submitted by: JoseBonner
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Feb 28, 2017
Observation date: Apr 21, 2016
Submitted by: techs
Region: Crook County, Oregon, United States
Verified by: Ken Davenport
Verified date: Sep 04, 2016
Observation date: Jul 12, 2016
Submitted by: Bixia
Region: Alpine County, California, United States
Verified by: Ken Davenport
Verified date: Jul 31, 2016
Observation date: Apr 12, 2016
Submitted by: PDunwiddie
Region: Grant County, Washington, United States
Verified by: davidwdroppers
Verified date: Apr 14, 2016
Observation date: Feb 20, 2016
Submitted by: TPeterson
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Feb 28, 2016
Observation date: Feb 20, 2016
Submitted by: TPeterson
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Feb 28, 2016
Observation date: Apr 28, 2015
Submitted by: Kristie Nelson
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Apr 29, 2015
Observation date: Jun 24, 2014
Submitted by: rcav
Region: Yellowstone National Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Sep 29, 2014
Observation date: May 01, 2014
Submitted by: BabcockWebb
Region: Gunnison County, Colorado, United States
Verified by: mikefisher
Verified date: Jun 22, 2014
Observation date: Apr 26, 2014
Submitted by: Dwaine Wagoner
Region: Big Horn County, Wyoming, United States
Verified by: J_Martineau
Verified date: Apr 28, 2014
Observation date: Mar 21, 2014
Submitted by: John Wilson
Region: Socorro County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 21, 2014
Observation date: Apr 12, 2014
Submitted by: allelopath
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 21, 2014
Observation date: Apr 13, 2014
Submitted by: allelopath
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Apr 21, 2014
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