Attributes of Pontia beckerii
Becker's White
Pontia beckerii (W.H. Edwards, 1871)
Family: Pieridae
Subfamily: Pierinae
Identification: Upperside of both male and female is white, with black spots near tip of forewing. Inside the forewing cell is a square black bar with a curved white center. The underside of the hindwing of both sexes has wide green edging along the veins, confined by a white median band.
Wing Span: 1 5/8 - 2 inches (4 - 5 cm).
Life History: Males patrol ravines in search of females. Females lay eggs singly on host stems, buds, leaves, flowers, and fruits.
Flight: Several flights from March-October.
Caterpillar Hosts: Plants of mustard (Brassicaceae) family including mustards (Brassica), and hedge mustard (Sisymbrium) species; and bladder-pod (Isomeris arborea) in the caper family (Capparidaceae).
Adult Food: Flower nectar including hedge mustard and alfalfa.
Habitat: Arid brushlands, desert foothills and canyons, fields.
Range: British Columbia and Alberta south to Baja California; east of the Cascades and Sierra Nevada, east and south to western Montana and New Mexico.
Conservation: Not required.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None required.
Taxonomy Notes:
Images of Pontia beckerii
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The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
Instructions: Click on the map and move your mouse to pan.
Zoom by using the plus [+] and minus [-] on the left side of the map.
To change which map layers are displayed, click on the plus sign [+] on the right side of the map.
By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.
| Observation Date | Submitter | Region |
Verified Date |
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|---|---|---|---|---|---|
| January 01, 1950 | legacy.reporter | Mohave County, Arizona, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Coconino County, Arizona, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Coconino County, Arizona, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Apache County, Arizona, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Siskiyou County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Modoc County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Shasta County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Lassen County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Plumas County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Sierra County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Nevada County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Placer County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | El Dorado County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Alpine County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Tuolumne County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Mono County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Inyo County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Tulare County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | San Luis Obispo County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Santa Barbara County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Ventura County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Los Angeles County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | San Diego County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Riverside County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | San Bernardino County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Kern County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Imperial County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Madera County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Larimer County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Boulder County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Jefferson County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Park County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Pueblo County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Otero County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Las Animas County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Huerfano County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Custer County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Fremont County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Chaffee County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Pitkin County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Gunnison County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Saguache County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Eagle County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Routt County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Moffat County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Rio Blanco County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Garfield County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Summit County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Mesa County, Colorado, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Delta County, Colorado, United States | December 31, 2004 | Details |
