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
Get your BAMONA Gear!
Please donate!
We depend on donations to keep Butterflies and Moths of North America freely available. We want to express our gratitude to all who showed their support by making a contribution this year. You can donate to support this project at any time.
Advertise with us!
Do you have a product or service that you think would interest BAMONA users? If you would like to advertise on this website, contact us by email, or use the contact form and select the "Advertising" category.
Verified Sightings
Displaying 1 - 24 of 538 verified sightings
Observation date: Jun 05, 2024
Submitted by: James F Parker
Region: Southeast Fairbanks, Alaska, United States
Verified by: davidwdroppers
Verified date: Oct 07, 2024
Observation date: Jun 29, 2024
Submitted by: Jon Kindschy
Region: Gunnison County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 23, 2024
Observation date: Jun 20, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 22, 2024
Observation date: Jul 04, 2024
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jul 04, 2024
Observation date: Jun 04, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 01, 2024
Observation date: Jun 01, 2024
Submitted by: Cascade Colors
Region: Grand County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 01, 2024
Observation date: Apr 15, 2024
Submitted by: icosahedron
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Jun 19, 2024
Observation date: Jun 08, 2024
Submitted by: robertpb
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Jun 16, 2024
Observation date: Apr 14, 2023
Submitted by: icosahedron
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Jun 16, 2024
Observation date: Apr 19, 2023
Submitted by: icosahedron
Region: Sonoma County, California, United States
Verified by: Ken Davenport
Verified date: Jun 16, 2024
Observation date: Jun 06, 2024
Submitted by: twofried
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Jun 10, 2024
Observation date: Apr 01, 2024
Submitted by: TomPeterson
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: Apr 04, 2024
Observation date: Mar 18, 2024
Submitted by: Dobber31
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: Mar 19, 2024
Observation date: Jun 17, 2023
Submitted by: stevecary
Region: Taos County, New Mexico, United States
Verified by: stevecary
Verified date: Dec 03, 2023
Observation date: Jul 15, 2023
Submitted by: ncrosbyrd
Region: Lake County, Colorado, United States
Verified by: mikefisher
Verified date: Sep 09, 2023
Observation date: May 23, 2016
Submitted by: Robb Hannawacker
Region: Grand County, Utah, United States
Verified by: James Steen
Verified date: Aug 25, 2023
Observation date: Jun 05, 2023
Submitted by: bsiverhus
Region: Roseau County, Minnesota, United States
Verified by: jmgesell
Verified date: Aug 13, 2023
Observation date: Jun 17, 2023
Submitted by: Thom Garrett
Region: Missoula County, Montana, United States
Verified by: J_Martineau
Verified date: Jul 31, 2023
Observation date: Jul 05, 2023
Submitted by: Jon Kindschy
Region: Gunnison County, Colorado, United States
Verified by: mikefisher
Verified date: Jul 23, 2023
Observation date: Jun 23, 2023
Submitted by: Paul Prappas
Region: British Columbia, Canada
Verified by: Paul Prappas
Verified date: Jun 24, 2023
Observation date: May 26, 2023
Submitted by: Allison Barta
Region: Koochiching County, Minnesota, United States
Verified by: jmgesell
Verified date: May 27, 2023
Observation date: May 17, 2022
Submitted by: Luna-Linuche.76
Region: Lake County, Oregon, United States
Verified by: Ken Davenport
Verified date: Feb 07, 2023
Observation date: May 26, 2020
Submitted by: Arctic Jim
Region: Matanuska-Susitna, Alaska, United States
Verified by: Paul Prappas
Verified date: Feb 07, 2023
Observation date: Jul 03, 2022
Submitted by: kathy lichtendahl
Region: Park County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 06, 2023
- 1 of 23
- next ›