Attributes of Hemileuca eglanterina
Western sheepmoth
Hemileuca eglanterina (Boisduval, 1852)
Family: Saturniidae
Subfamily: Hemileucinae
Identification: Highly variable. Upperside of forewing is yellow-orange to cream to pink with black markings. Upperside of hindwing is yellow-orange to orange with narrow to wide black markings. Form denudata (northwestern Wyoming west to Washington, south through the Central Valley of California) has no markings on either wing. Subspecies shastaensis (northern California and southern Oregon) has a pink forewing with diffuse black markings or is mostly black with some pink spots.
Wing Span: 2 9/16 - 3 7/16 inches (6.5 - 8.7 cm).
Life History: Adults emerge in early morning and mate in late morning. Females lay eggs in rings on plant stems. Eggs overwinter and hatch in April and May. Young caterpillars feed together in groups and when they are older they feed alone. Fully-grown caterpillars pupate in loose cocoons in the leaf litter or in burrows in soft soil, and adults emerge from July-September. At high elevations and northern latitudes, 2 years are needed to complete development. The cocoons overwinter and in the spring the adults emerge and start the cycle again.
Flight: One brood from June-September.
Caterpillar Hosts: Mountain lilac (Ceanothus), mountain-mahogany (Cercocarpus montanus), bitter cherry (Prunus emarginata), bitterbrush (Purshia tridentata), snowberry (Symphoricarpos), currant (Ribes), wild rose (Rosa), willow (Salix) and others.
Adult Food: Adults do not feed.
Habitat: From sea level to at least 8400 feet in a variety of habitats including chaparral, pine and redwood forests, oak woodlands, and riparian areas.
Range: Southeastern Alberta west to Vancouver Island, British Columbia; south to central Montana, Wyoming, central Colorado, northern Arizona, and southern California.
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 reported.
Taxonomy Notes:
Images of Hemileuca eglanterina
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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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June 19, 2012 | amdurso | Cache County, Utah, United States | October 30, 2012 | Details |
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August 07, 2010 | opiliones | Clark County, Nevada, United States | October 18, 2012 | Details |
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August 15, 2012 | seaugust | Monterey County, California, United States | September 11, 2012 | Details |
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July 27, 2012 | tfurman | Thurston County, Washington, United States | August 09, 2012 | Details |
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July 07, 2012 | eal79 | Inyo County, California, United States | August 06, 2012 | Details |
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July 22, 2012 | Virginia Rivers | Sierra County, California, United States | August 02, 2012 | Details |
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July 27, 2010 | lancaster.cdy | Teton County, Wyoming, United States | July 17, 2012 | Details |
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July 30, 2011 | Ethan Hall | Salt Lake County, Utah, United States | July 08, 2012 | Details |
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July 04, 2012 | plex1ppus | Spokane County, Washington, United States | July 07, 2012 | Details |
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August 16, 2011 | jr.berry | Shasta County, California, United States | June 21, 2012 | Details |
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July 29, 2011 | iceix | Teton County, Wyoming, United States | March 04, 2012 | Details |
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July 09, 2010 | bright | Glacier County, Montana, United States | February 21, 2012 | Details |
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July 22, 2006 | pcastrovillo | Valley County, Idaho, United States | January 29, 2012 | Details |
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August 16, 2011 | jobrien | Lassen County, California, United States | January 19, 2012 | Details |
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June 23, 2011 | kelly Pajak | San Bernardino County, California, United States | November 21, 2011 | Details |
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July 14, 2011 | debrapeck | Humboldt County, California, United States | November 21, 2011 | Details |
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August 31, 2011 | guy_incognito | San Bernardino County, California, United States | September 08, 2011 | Details |
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September 06, 2011 | Merry Maxwell | Chelan County, Washington, United States | September 07, 2011 | Details |
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July 12, 2009 | John Ashley | Flathead County, Montana, United States | September 01, 2011 | Details |
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July 22, 2011 | mgiffen | Modoc County, California, United States | August 31, 2011 | Details |
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July 16, 2011 | gencong | Washoe County, Nevada, United States | August 17, 2011 | Details |
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August 09, 2011 | LillyWonder | Klickitat County, Washington, United States | August 11, 2011 | Details |
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July 14, 2000 | Nancy Hampton | Bonneville County, Idaho, United States | May 03, 2011 | Details |
| August 06, 2010 | legacy.reporter (Petrina Vecchio) | Thurston County, Washington, United States | May 01, 2011 | Details | |
| July 11, 2009 | davidwdroppers (David Droppers) | Chelan County, Washington, United States | May 01, 2011 | Details | |
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August 03, 2010 | legacy.reporter (Sondra Appel) | Josephine County, Oregon, United States | January 12, 2011 | Details |
| July 06, 2010 | legacy.reporter (Paul Opler and EviBuckner-Opler ) | Klamath County, Oregon, United States | December 31, 2010 | Details | |
| June 23, 2008 | legacy.reporter (Jason Martineau) | Sheridan County, Wyoming, United States | August 04, 2010 | Details | |
| July 11, 2009 | davidwdroppers (David Droppers) | Chelan County, Washington, United States | August 21, 2009 | Details | |
| July 11, 2009 | legacy.reporter (Jerry Friedman) | San Miguel County, New Mexico, United States | August 10, 2009 | Details | |
| June 29, 2004 | legacy.reporter (Mike Hofmann) | Utah County, Utah, United States | July 07, 2009 | Details | |
| June 04, 2009 | legacy.reporter (bkbracing@hotmail.com) | Sandoval County, New Mexico, United States | June 11, 2009 | Details | |
| June 15, 1975 | legacy.reporter (Bruce M. Griffin) | Coconino County, Arizona, United States | January 28, 2009 | Details | |
| June 30, 2007 | davidwdroppers (David Droppers) | Chelan County, Washington, United States | August 30, 2007 | Details | |
| January 01, 1950 | legacy.reporter | Colusa County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Contra Costa 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 | Inyo 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 | Marin 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 | Nevada County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Orange 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 | Plumas County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Sacramento 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 | San Diego County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | San Mateo County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Santa Clara County, California, United States | December 31, 2004 | Details |
