Attributes of Euchloe ausonides
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.
Taxonomy Notes:
Images of Euchloe ausonides
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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.
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The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
Verified Date |
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|---|---|---|---|---|---|
| July 11, 1982 | legacy.reporter (K Hansen-S. Mattoon) | Elko County, Nevada, United States | December 01, 2012 | Details | |
| June 25, 1984 | paulopler (Paul Opler) | Lander County, Nevada, United States | December 01, 2012 | Details | |
| June 03, 1985 | legacy.reporter (Floyd & June Preston) | Lander County, Nevada, United States | December 01, 2012 | Details | |
| May 28, 1993 | legacy.reporter (George T. Austin) | Pershing County, Nevada, United States | December 01, 2012 | Details | |
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May 27, 2012 | Jdammarell | Lincoln County, Washington, United States | September 28, 2012 | Details |
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May 19, 2012 | plex1ppus | Mineral County, Montana, United States | June 18, 2012 | Details |
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July 14, 2008 | hjbarkey9 | Park County, Colorado, United States | May 22, 2012 | Details |
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July 10, 2011 | Nancy Lea Sandy | Natrona County, Wyoming, United States | April 18, 2012 | Details |
| June 12, 2008 | RaisingButterflies.org (Todd Stout) | Douglas County, Nevada, United States | January 01, 2012 | Details | |
| April 25, 2010 | legacy.reporter (Alex Grkovich) | Washoe County, Nevada, United States | January 01, 2012 | Details | |
| April 26, 2010 | legacy.reporter (Alex Grkovich) | Washoe County, Nevada, United States | January 01, 2012 | Details | |
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June 15, 2011 | Cabngirl | Sonoma County, California, United States | June 18, 2011 | Details |
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June 04, 2011 | plex1ppus | Whitman County, Washington, United States | June 13, 2011 | Details |
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May 12, 2011 | plex1ppus (plex1ppus) | Spokane County, Washington, United States | May 24, 2011 | Details |
| June 03, 2006 | legacy.reporter (David Shaw) | Siskiyou County, California, United States | May 01, 2011 | Details | |
| July 13, 1991 | legacy.reporter (Jim Brock) | Tuolumne County, California, United States | May 01, 2011 | Details | |
| May 09, 1981 | legacy.reporter (unknown) | Sacramento County, California, United States | May 01, 2011 | Details | |
| April 07, 1983 | legacy.reporter (unknown) | San Mateo County, California, United States | May 01, 2011 | Details | |
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June 02, 2009 | Norbert Kondla | Alberta, Canada | February 11, 2011 | Details |
| July 11, 1963 | legacy.reporter (Peter Herlan) | Elko County, Nevada, United States | January 01, 2011 | Details | |
| July 14, 2010 | legacy.reporter (Paul Opler and EviBuckner-Opler ) | Okanogan County, Washington, United States | December 31, 2010 | Details | |
| July 19, 2010 | legacy.reporter (Paul Opler and EviBuckner-Opler ) | Teton County, Wyoming, United States | December 31, 2010 | Details | |
| May 21, 2010 | Ken Davenport (Ken Davenport) | Tulare County, California, United States | December 31, 2010 | Details | |
| May 21, 2010 | Ken Davenport (Ken Davenport) | Tulare County, California, United States | December 31, 2010 | Details | |
| May 21, 2010 | Ken Davenport (Ken Davenport) | Tulare County, California, United States | December 31, 2010 | Details | |
| March 05, 1988 | legacy.reporter (R. Langston, D. Parkinson) | El Dorado County, California, United States | August 02, 2010 | Details | |
| June 20, 1988 | legacy.reporter (George T. Austin) | Humboldt County, California, United States | August 02, 2010 | Details | |
| March 09, 1983 | legacy.reporter (William Swisher) | Fresno County, California, United States | April 02, 2010 | Details | |
| June 19, 1987 | legacy.reporter (Laurence Crabtree) | Shasta County, California, United States | January 25, 2010 | Details | |
| May 18, 1979 | legacy.reporter (Laurence Crabtree) | Butte County, California, United States | January 25, 2010 | Details | |
| May 10, 1990 | legacy.reporter (A. M. Shapiro) | Siskiyou County, California, United States | January 07, 2010 | Details | |
| June 12, 1985 | legacy.reporter (A. M. Shapiro) | Siskiyou County, California, United States | January 07, 2010 | Details | |
| July 22, 1990 | legacy.reporter (A. M. Shapiro) | Siskiyou County, California, United States | January 07, 2010 | Details | |
| April 07, 1973 | legacy.reporter (James R. Mori) | Fresno County, California, United States | January 06, 2010 | Details | |
| March 21, 1974 | legacy.reporter (A. M. Shapiro) | Sacramento County, California, United States | January 06, 2010 | Details | |
| June 17, 1967 | paulopler (Paul Opler) | Lassen County, California, United States | January 06, 2010 | Details | |
| March 20, 1960 | legacy.reporter (Robert L. Langston) | Alameda County, California, United States | January 05, 2010 | Details | |
| February 24, 1951 | legacy.reporter (Samuel Smoker) | Santa Clara County, California, United States | January 05, 2010 | Details | |
| March 26, 1983 | legacy.reporter (Arthur M. Shapiro) | Solano County, California, United States | January 05, 2010 | Details | |
| March 28, 1983 | legacy.reporter (Arthur M. Shapiro) | Solano County, California, United States | January 05, 2010 | Details | |
| April 12, 1914 | legacy.reporter (J. A. Comstock) | Santa Clara County, California, United States | January 04, 2010 | Details | |
| April 12, 1914 | legacy.reporter (J. A. Comstock) | Santa Clara County, California, United States | January 04, 2010 | Details | |
| April 01, 1919 | legacy.reporter (J. A. Comstock) | Santa Clara County, California, United States | January 04, 2010 | Details | |
| May 28, 2007 | Ken Davenport (Ken Davenport) | Tulare County, California, United States | December 08, 2009 | Details | |
| May 31, 1999 | Ken Davenport (Ken Davenport) | Inyo County, California, United States | December 08, 2009 | Details | |
| July 04, 2003 | Ken Davenport (Ken Davenport) | Tulare County, California, United States | December 08, 2009 | Details | |
| June 23, 1986 | Ken Davenport (Ken Davenport) | Inyo County, California, United States | December 08, 2009 | Details | |
| July 16, 1933 | legacy.reporter (John S. Garth) | Mariposa County, California, United States | October 20, 2009 | Details | |
| July 17, 1933 | legacy.reporter (John S. Garth) | Mariposa County, California, United States | October 20, 2009 | Details | |
| July 03, 1954 | legacy.reporter (J. W. Tilden) | Mariposa County, California, United States | October 20, 2009 | Details |
