Attributes of Hyalophora columbia

Columbia silkmoth
Hyalophora columbia (S.I. Smith, 1865)

Family: Saturniidae
Subfamily: Saturniinae
Identification: Wings are dark brown to red-brown. The gray area outside the white postmedian band does not contain any red. Crescent spots on the forewings and hindwings are white, although occasionally the spots on the forewing may be reduced or absent.
Wing Span: 3 1/8 - 3 15/16 inches (8 - 10 cm).
Life History: Females lay one or two eggs at the base of larch needles, or on leaves and twigs of other host plants. Caterpillars hatch in less than two weeks and are solitary feeders. The cocoon is compact and spun close to the ground on the trunk or stem of the host plant or on nearby thick undergrowth.
Flight: One brood from May-July.
Caterpillar Hosts: In the east laricina); in addition, caterpillars in western Ontario eat pin cherry (Prunus pensylvanica), speckled alder (Alnus rugosa), and white birch (Betula papyrifera). In the west: western choke cherry (Prunus demissa), bitter cherry (P. emarginata), bitterbrush (Purshia tridentata), wild roses (Rosa), willows (Salix), buffalo berry (Shepherdia argentea), Russian olive (Eleagnus angustifolius), and buckbrush (Ceanothus).
Adult Food: Adults do not feed.
Habitat: Woodland with poorly drained, boggy, acid soil; suburban gardens; and a wide variety of wooded habitats.
Range: In the east Quebec and Ontario to Michigan, northern Wisconsin, and southeastern Manitoba. In the west: Alberta and Montana south through the Rocky Mountain region to southwest Texas and into central Mexico. Comments: Glover's silkmoth, H. c. gloveri, once considered a separate species, is now treated as a subspecies of the Columbia silkmoth.
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 Hyalophora columbia

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Hyalophora columbia - Hyalophora_columbiaWillJohnson.jpg

Hyalophora columbia - Hyalophora_columbiaWillJohnson.jpg
Hyalophora columbia - Hyalophora_columbia_gloveriPhynix.jpg

Hyalophora columbia - Hyalophora_columbia_gloveriPhynix.jpg

The map below displays all BAMONA data for this species and has three different data layers:
1. All records (yellow dots)   2. Recently verified records (orange dots)*   3. US county records (purple)

There are also three base layers: 1. Satellite    2. Normal   3. Hybrid

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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

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.

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Observation Date Submitter Region Verified Datesort icon
January 01, 1950 legacy.reporter Cochise County, Arizona, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Coconino County, Arizona, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Greenlee County, Arizona, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Pima County, Arizona, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Santa Cruz County, Arizona, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Yavapai County, Arizona, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Alpine 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 Mono County, California, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Adams County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Alamosa County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Boulder County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Clear Creek County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Costilla County, Colorado, 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 Denver County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter El Paso County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Garfield 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 Jefferson County, Colorado, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Larimer 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 Weld County, Colorado, 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 Cassia County, Idaho, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Kootenai County, Idaho, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Shoshone County, Idaho, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Hancock County, Maine, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Knox County, Maine, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Oxford County, Maine, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Penobscot County, Maine, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Clare County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Dickinson County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Ingham County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Isabella County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Jackson County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Lapeer County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Livingston County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Mecosta County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Menominee County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Montcalm County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Newaygo County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Oakland County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Schoolcraft County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Washtenaw County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Wayne County, Michigan, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Beltrami County, Minnesota, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Lake Of The Woods County, Minnesota, United States December 31, 2004 Details
January 01, 1950 legacy.reporter Custer County, Montana, United States December 31, 2004 Details