Attributes of Hemileuca nuttalli

Nuttall's sheepmoth
Hemileuca nuttalli (Strecker, 1875)

Family: Saturniidae
Subfamily: Hemileucinae
Identification: Upperside of hindwing is yellow, forewing is usually a lighter yellow to cream. Both wings have black markings which in some individuals are very wide.
Wing Span: 2 11/16 - 3 1/4 inches (6.9 - 8.3 cm).
Life History: Adults emerge in the morning and mate in the early afternoon. Females lay eggs in rings around host plant stems. Eggs overwinter and hatch in May and June. Young caterpillars feed together in groups and when 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. Cocoons overwinter and in the spring the adults emerge.
Flight: One brood from July-September.
Caterpillar Hosts: Bitterbrush (Purshia tridentata), snowberry (Symphoricarpos), currant (Ribes), and desert sweet (Chamaebatiaria millefolium).
Adult Food: Adults do not feed.
Habitat: Sagebrush scrub, pinyon-juniper woodland, and sagebrush meadows.
Range: Southern British Columbia south down the east side of the Sierra Nevada, east to western Montana, western Wyoming, and western Colorado.
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 nuttalli

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Hemileuca nuttalli - heminutt.jpg

Hemileuca nuttalli - heminutt.jpg
Hemileuca nuttalli - 2814_26.jpg

Hemileuca nuttalli - 2814_26.jpg

The map below displays all BAMONA data for this species and has three different data layers:
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Observation Date Submitter Region Verified Datesort icon
August 22, 2014 penolope pequop Elko County, Nevada, United States September 15, 2014 Details
August 08, 2014 dickshooter Malheur County, Oregon, United States August 11, 2014 Details
September 01, 2011 Ethan Hall Morgan County, Utah, United States October 01, 2013 Details
August 22, 2010 Dwaine Wagoner Natrona County, Wyoming, United States February 10, 2011 Details
January 01, 1950 legacy.reporter Inyo 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 Tuolumne County, California, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Delta County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Grand 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 Mesa 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 Grande County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter San Juan County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Ada County, Idaho, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Butte County, Idaho, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Owyhee County, Idaho, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Rio Arriba County, New Mexico, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Eureka County, Nevada, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Lander County, Nevada, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Lyon County, Nevada, United States December 31, 2004 Details
January 01, 1950 legacy.reporter White Pine County, Nevada, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Klamath County, Oregon, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Grand County, Utah, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Iron County, Utah, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Sevier County, Utah, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Tooele County, Utah, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Morgan County, Utah, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Salt Lake County, Utah, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Adams County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Benton County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Chelan County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Kittitas County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Okanogan County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Whitman County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Yakima County, Washington, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Lincoln County, Wyoming, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Teton County, Wyoming, United States December 31, 2004 Details