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
July 10, 2015 Waymoth Yavapai County, Arizona, United States July 28, 2015 Details
July 01, 2015 Aake Coconino County, Arizona, United States July 28, 2015 Details
June 18, 2015 Cochrana87 Hancock County, Maine, United States July 23, 2015 Details
June 20, 2015 amdurso Sweetwater County, Wyoming, United States June 28, 2015 Details
June 12, 2015 pleaglefruit Gunnison County, Colorado, United States June 19, 2015 Details
May 24, 2015 sam samples Custer County, Colorado, United States June 06, 2015 Details
May 30, 2015 stinglessbee Saguache County, Colorado, United States June 06, 2015 Details
May 31, 2015 joelbert62 Bonner County, Idaho, United States June 02, 2015 Details
May 31, 2015 Ayatana Artists Ontario, Canada June 02, 2015 Details
June 02, 2015 presj Bonner County, Idaho, United States June 02, 2015 Details
August 15, 2014 pshorst Cascade County, Montana, United States May 22, 2015 Details
May 21, 2015 buz Alberta, Canada May 22, 2015 Details
May 07, 2015 drycreekschool Converse County, Wyoming, United States May 11, 2015 Details
May 01, 2015 Debbie.angell Douglas County, Colorado, United States May 07, 2015 Details
April 08, 2015 Brushfire Rio Arriba County, New Mexico, United States May 06, 2015 Details
April 12, 2015 Maryh228 Santa Fe County, New Mexico, United States May 06, 2015 Details
April 18, 2015 Adelma Hnasko New Mexico, United States May 06, 2015 Details
April 23, 2015 queenpattijo Fremont County, Colorado, United States April 26, 2015 Details
February 23, 2015 paula_albin Yavapai County, Arizona, United States April 22, 2015 Details
April 06, 2015 acapulco_john Yavapai County, Arizona, United States April 22, 2015 Details
June 10, 2014 J_Martineau Carbon County, Wyoming, United States November 26, 2014 Details
September 01, 2014 JSpringer Coconino County, Arizona, United States September 08, 2014 Details
August 10, 2014 marrl Alberta, Canada August 11, 2014 Details
July 28, 2014 time Apache County, Arizona, United States July 30, 2014 Details
June 05, 2014 letsgomoe Gallatin County, Montana, United States July 06, 2014 Details
July 06, 2014 uglycasanova Gunnison County, Colorado, United States July 06, 2014 Details
June 27, 2014 makotara Yellowstone National Park County, Wyoming, United States July 06, 2014 Details
June 05, 2014 cdemers Essex County, New York, United States July 03, 2014 Details
July 01, 2014 charlespharding Cache County, Utah, United States July 02, 2014 Details
June 21, 2014 wildblue Sublette County, Wyoming, United States June 25, 2014 Details
June 23, 2014 brandiwinesunshine9 Clear Creek County, Colorado, United States June 24, 2014 Details
June 17, 2014 shells1025 Summit County, Colorado, United States June 21, 2014 Details
June 15, 2014 Frederick Gralenski Washington County, Maine, United States June 20, 2014 Details
June 16, 2014 Jaxonking248 Albany County, Wyoming, United States June 18, 2014 Details
May 29, 2014 Flora Warfel Custer County, Colorado, United States June 15, 2014 Details
June 06, 2014 tabithadawnwestphal Missoula County, Montana, United States June 15, 2014 Details
June 06, 2014 briley2 Fremont County, Wyoming, United States June 13, 2014 Details
June 05, 2014 jhenders76 Sublette County, Wyoming, United States June 12, 2014 Details
June 06, 2014 maxczap Fergus County, Montana, United States June 09, 2014 Details
May 26, 2014 mtsh3ctor Cascade County, Montana, United States May 30, 2014 Details
May 30, 2014 mtsh3ctor Cascade County, Montana, United States May 30, 2014 Details
May 26, 2014 Wolfegang Alberta, Canada May 27, 2014 Details
May 17, 2014 annbrown202 Jefferson County, Colorado, United States May 23, 2014 Details
May 05, 2014 kjcryts84 Boulder County, Colorado, United States May 22, 2014 Details
April 27, 2014 Zoe Weil Maine, United States May 05, 2014 Details
April 26, 2014 Zoe Weil Hancock County, Maine, United States May 05, 2014 Details
March 18, 2014 azguy8212 Yavapai County, Arizona, United States March 24, 2014 Details
September 14, 2013 Ronon Le Birdis Garfield County, Utah, United States February 20, 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