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
Click on an image to view full size and to see additional details.
|
|
|
|
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.
The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
Verified Date |
||
|---|---|---|---|---|---|
| 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 |
