Large Marble
Euchloe ausonides (Lucas, 1852)
Family: Pieridae
Subfamily: Pierinae
Identification: Scattered white scales in forewing black bar. Black pattern on tip of upperside of forewing. Dense green marbling on underside of hindwing.
Wing Span: 1 1/2 - 2 inches (3.8 - 5.1 cm).
Life History: Males patrol valleys and hillsides for females. Eggs are laid singly on unopened flower buds; caterpillars eat flowers and fruits. Chrysalids hibernate.
Flight: One in the north, May-July; two in central California, February-April and May-August.
Caterpillar Hosts: Plants of the mustard (Brassicaceae) family including rockcress (Arabis drummondi), dyer's woad (Isatis tinctoria), mustards (Brassica species), and hedge mustard (Sisymbrium species).
Adult Food: Nectar from flowers of the mustard family and other plants such as fiddleneck (Amsinckia) and brodiaeas.
Habitat: Valleys, hillsides, fields, meadows, and other open sunny areas.
Range: Alaska south to central California and northern New Mexico, east to southwest Manitoba.
Conservation: The Island Marble (Euchloe ausonides insulanus) is critically imperiled. It was thought to be extinct but has been rediscovered on San Juan Island (Washington). Conservation efforts focus on restoring its ecosystem - the Puget Sound lowland prairie.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. Subspocies insulanus is T1 (Critically Imperiled).
Management Needs: None needed.
Comments: NULL
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Verified Sightings
Displaying 121 - 144 of 528 verified sightings
Observation date: Jul 11, 1963
Submitted by: legacy.reporter (Peter Herlan)
Region: Elko County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2011
Observation date: Jul 19, 2010
Submitted by: legacy.reporter (Paul Opler and EviBuckner-Opler )
Region: Teton County, Wyoming, United States
Verified by: paulopler (Paul Opler)
Verified date: Dec 31, 2010
Observation date: May 21, 2010
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 31, 2010
Observation date: May 21, 2010
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 31, 2010
Observation date: Jul 14, 2010
Submitted by: legacy.reporter (Paul Opler and EviBuckner-Opler )
Region: Okanogan County, Washington, United States
Verified by: paulopler (Paul Opler)
Verified date: Dec 31, 2010
Observation date: May 21, 2010
Submitted by: Ken Davenport (Ken Davenport)
Region: Tulare County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 31, 2010
Observation date: unknown
Submitted by: js97032@yahoo.com (Jennifer Sanders)
Region: Taos County, New Mexico, United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: unknown
Submitted by: BAMONA
Region:
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Mar 05, 1988
Submitted by: legacy.reporter (R. Langston, D. Parkinson)
Region: El Dorado County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 02, 2010
Observation date: Jun 20, 1988
Submitted by: legacy.reporter (George T. Austin)
Region: Humboldt County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 02, 2010
Observation date: Mar 09, 1983
Submitted by: legacy.reporter (William Swisher)
Region: Fresno County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Apr 02, 2010
Observation date: May 18, 1979
Submitted by: legacy.reporter (Laurence Crabtree)
Region: Butte County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 25, 2010
Observation date: Jun 19, 1987
Submitted by: legacy.reporter (Laurence Crabtree)
Region: Shasta County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 25, 2010
Observation date: Jun 12, 1985
Submitted by: legacy.reporter (A. M. Shapiro)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
Observation date: Jul 22, 1990
Submitted by: legacy.reporter (A. M. Shapiro)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
Observation date: May 10, 1990
Submitted by: legacy.reporter (A. M. Shapiro)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
Observation date: Apr 07, 1973
Submitted by: legacy.reporter (James R. Mori)
Region: Fresno County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Mar 21, 1974
Submitted by: legacy.reporter (A. M. Shapiro)
Region: Sacramento County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Jun 17, 1967
Submitted by: paulopler (Paul Opler)
Region: Lassen County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Mar 20, 1960
Submitted by: legacy.reporter (Robert L. Langston)
Region: Alameda County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: Feb 24, 1951
Submitted by: legacy.reporter (Samuel Smoker)
Region: Santa Clara County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: Mar 26, 1983
Submitted by: legacy.reporter (Arthur M. Shapiro)
Region: Solano County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: Mar 28, 1983
Submitted by: legacy.reporter (Arthur M. Shapiro)
Region: Solano County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: Apr 12, 1914
Submitted by: legacy.reporter (J. A. Comstock)
Region: Santa Clara County, California, United States
Verified by: legacy.verifier (J. A. Comstock)
Verified date: Jan 04, 2010
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