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:
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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
March 18, 2014 azguy8212 Yavapai County, Arizona, United States March 24, 2014 Details
May 26, 2013 OsborneLV Lincoln County, Nevada, United States February 12, 2014 Details
September 09, 2012 Jeff Trahan Cochise County, Arizona, United States January 12, 2014 Details
September 12, 2013 drdale Yavapai County, Arizona, United States January 12, 2014 Details
June 11, 2013 J_Martineau Carbon County, Wyoming, United States December 11, 2013 Details
June 20, 2011 technoseur Iron County, Utah, United States October 01, 2013 Details
July 30, 2013 Carrol56 Santa Cruz County, Arizona, United States August 24, 2013 Details
August 07, 2013 schhim Cochise County, Arizona, United States August 23, 2013 Details
May 20, 2013 Zjhok Larimer County, Colorado, United States July 28, 2013 Details
May 05, 2013 montanadriver Cibola County, New Mexico, United States July 22, 2013 Details
July 02, 2013 JuanitaCharter Natrona County, Wyoming, United States July 10, 2013 Details
July 10, 2013 FSohm Alberta, Canada July 10, 2013 Details
June 08, 2012 Mbelkin Gunnison County, Colorado, United States July 05, 2013 Details
June 29, 2013 merlot_rosebud Lake County, Montana, United States July 02, 2013 Details
June 30, 2013 Nancyann Park County, Montana, United States July 01, 2013 Details
June 03, 2013 Sawgone23 Alberta, Canada June 28, 2013 Details
June 19, 2013 michelle03509 Cascade County, Montana, United States June 20, 2013 Details
June 16, 2013 Ohls45 Colorado, United States June 18, 2013 Details
June 07, 2013 egemini76 Clark County, Nevada, United States June 16, 2013 Details
June 11, 2013 Swennym Bear Lake County, Idaho, United States June 12, 2013 Details
June 02, 2013 w0x0f Alberta, Canada June 06, 2013 Details
June 03, 2013 bairalli Bannock County, Idaho, United States June 05, 2013 Details
June 05, 2013 Page11 Laramie County, Wyoming, United States June 05, 2013 Details
May 18, 2013 lalait Alberta, Canada May 20, 2013 Details
April 05, 2013 raejeanprather Yavapai County, Arizona, United States April 30, 2013 Details
May 25, 2012 sarah_richer Ontario, Canada April 07, 2013 Details
June 03, 2011 ellenjones6 Franklin County, New York, United States October 15, 2012 Details
April 26, 2012 drshvatz Douglas County, Colorado, United States September 07, 2012 Details
June 05, 2012 311texan33 Boulder County, Colorado, United States September 07, 2012 Details
April 23, 2012 deadframer Larimer County, Colorado, United States August 30, 2012 Details
April 28, 2012 LesSchaub Garfield County, Colorado, United States August 30, 2012 Details
July 24, 2012 alvarez2799 Grant County, New Mexico, United States July 26, 2012 Details
May 31, 2012 niksclements Grafton County, New Hampshire, United States July 07, 2012 Details
July 03, 2012 Andrew Lawson Alberta, Canada July 03, 2012 Details
June 16, 2007 jmstooley Yellowstone County, Montana, United States July 03, 2012 Details
May 02, 2012 lopezk Elko County, Nevada, United States June 21, 2012 Details
June 20, 2012 Philip Hough Bonner County, Idaho, United States June 21, 2012 Details
June 16, 2012 plourdet Alberta, Canada June 19, 2012 Details
June 09, 2012 greslm Alberta, Canada June 19, 2012 Details
June 04, 2004 jmihuc Clinton County, New York, United States June 18, 2012 Details
June 17, 2012 linda L Lewis And Clark County, Montana, United States June 17, 2012 Details
May 13, 2012 sharynmac Carbon County, Montana, United States June 15, 2012 Details
May 17, 2012 motorad666 Summit County, Utah, United States June 15, 2012 Details
May 22, 2012 Jim Whitney Summit County, Utah, United States June 13, 2012 Details
April 25, 2012 grape imaging Jefferson County, Colorado, United States June 12, 2012 Details
November 12, 2011 Elmer Mudguaard Caledonia County, Vermont, United States June 12, 2012 Details
May 20, 2012 carlrat Saskatchewan, Canada June 12, 2012 Details
May 27, 2012 DanBabb Douglas County, Colorado, United States June 12, 2012 Details
May 31, 2012 wysosa Jefferson County, Colorado, United States June 12, 2012 Details
June 09, 2012 Gayle Leslie Saskatchewan, Canada June 12, 2012 Details