Attributes of Nymphalis vaualbum

Compton Tortoiseshell
Nymphalis vaualbum (Denis and Schiffermüller)

Family: Nymphalidae
Subfamily: Nymphalinae
Identification: Upperside is orange-brown with darker wing bases and black spots; a single white spot on leading edge of each wing. Underside is mottled gray and brown, with dark bases and borders; hindwing with small white V at outer end of cell.
Wing Span: 2 1/2 - 3 1/16 inches (6.4 - 7.8 cm).
Life History: Eggs are laid in clumps on the host plant, and caterpillars feed together. Adults hibernate, sometimes in groups.
Flight: One brood lay eggs of the next generation, which flies from July-November before hibernating.
Caterpillar Hosts: Aspen and cottonwood (Populus), willows (Salix), gray birch (Betula populifolia), and paper birch (B. papyrifera).
Adult Food: Sap, rotting fruit, nectar of willow flowers.
Habitat: Upland deciduous or coniferous forests.
Range: Southeast Alaska and Canada south in the mountains to Montana and Wyoming; east across southern Canada and the northern United States to New England; south to North Carolina and Missouri. Rare migrants to Newfoundland, Nebraska, and Florida. This species is also found in temperate Eurasia.
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 Nymphalis vaualbum

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Nymphalis vaualbum - Nymphalis_vaualbum_LauraMaskell-crop.jpg

Nymphalis vaualbum - Nymphalis_vaualbum_LauraMaskell-crop.jpg
Nymphalis vaualbum - Nymphalis_vaualbum_ventral_BeaLaporte-crop.jpg

Nymphalis vaualbum - Nymphalis_vaualbum_ventral_BeaLaporte-crop.jpg
Nymphalis vaualbum - Nymphalis_vaualbum_BeaLaporte-crop.jpg

Nymphalis vaualbum - Nymphalis_vaualbum_BeaLaporte-crop.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
September 15, 2014 Cherylee Black Manitoba, Canada November 17, 2014 Details
August 16, 2014 Jack V. Shaw Fairbanks North Star Borough, Alaska, United States September 21, 2014 Details
August 09, 2014 treesnakes Aitkin County, Minnesota, United States August 14, 2014 Details
April 24, 2014 Twotigers British Columbia, Canada August 10, 2014 Details
August 05, 2014 Chris Blomme Ontario, Canada August 05, 2014 Details
March 27, 2013 WilmaJG British Columbia, Canada June 15, 2014 Details
April 11, 2014 Jennifer Jilks Ontario, Canada April 11, 2014 Details
April 08, 2014 John Ashley Flathead County, Montana, United States April 09, 2014 Details
September 14, 2013 raymond smith British Columbia, Canada October 31, 2013 Details
October 06, 2013 David Sweatman Manitoba, Canada October 29, 2013 Details
August 05, 2013 indigojude British Columbia, Canada September 16, 2013 Details
August 05, 2013 indigojude British Columbia, Canada September 16, 2013 Details
September 01, 2013 PDunwiddie British Columbia, Canada September 16, 2013 Details
July 28, 2013 plex1ppus Spokane County, Washington, United States July 31, 2013 Details
July 05, 2013 Dave Kinney Wexford County, Michigan, United States July 30, 2013 Details
July 11, 2013 jim8435wisc Clark County, Wisconsin, United States July 19, 2013 Details
September 09, 2011 Cherylee Black Manitoba, Canada July 07, 2013 Details
April 29, 2013 gmill711 Wabasha County, Minnesota, United States May 09, 2013 Details
April 25, 2013 Jdammarell Pend Oreille County, Washington, United States April 30, 2013 Details
April 07, 2013 curtis.lehman (Clarissa Lehman) Columbia County, Pennsylvania, United States April 08, 2013 Details
September 25, 2010 dpgbfly1 Aitkin County, Minnesota, United States January 06, 2013 Details
June 25, 1987 legacy.reporter (George T. Austin) Elko County, Nevada, United States December 01, 2012 Details
April 22, 2012 Jdammarell Pend Oreille County, Washington, United States September 28, 2012 Details
June 19, 2011 aljay Manitoba, Canada September 01, 2012 Details
August 18, 2012 davidelwonger@msn.com British Columbia, Canada September 01, 2012 Details
April 08, 2012 insanelogic British Columbia, Canada April 27, 2012 Details
August 09, 2009 BOGwalker St Louis County, Minnesota, United States February 08, 2012 Details
April 07, 1999 legacy.reporter (Pam Weatherbee) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 13, 1994 legacy.reporter (Diane Potter) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 10, 1996 legacy.reporter (Diane Potter) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 04, 1998 legacy.reporter (Diane Potter) Berkshire County, Massachusetts, United States January 01, 2012 Details
September 21, 1996 legacy.reporter (Tom Dodd+Cathy Asselin) Berkshire County, Massachusetts, United States January 01, 2012 Details
April 07, 1998 legacy.reporter (Pam Weatherbee) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 07, 1996 legacy.reporter (Diane Potter) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 25, 1992 legacy.reporter (Tom Tyning #) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 17, 1994 legacy.reporter (Tom Tyning #) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 16, 1995 legacy.reporter (C.Berk Xerces) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 12, 1995 legacy.reporter (N.Berk Xerces) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 12, 1997 legacy.reporter (Mark Fairbrother #) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 15, 1998 legacy.reporter (M. Fairbrother et al) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 27, 1996 legacy.reporter (Rene Laubach #) Berkshire County, Massachusetts, United States January 01, 2012 Details
May 25, 1998 legacy.reporter (Dolores Price + Dave Small) Berkshire County, Massachusetts, United States January 01, 2012 Details
July 10, 1994 legacy.reporter (Richard Hildreth) Bristol County, Massachusetts, United States January 01, 2012 Details
July 22, 1992 legacy.reporter (Alden Thompson fide Brian Cassie) Bristol County, Massachusetts, United States January 01, 2012 Details
September 07, 1998 legacy.reporter (Matt Pelikan) Dukes County, Massachusetts, United States January 01, 2012 Details
July 11, 1999 legacy.reporter (Martha's Vineyard Xerces) Dukes County, Massachusetts, United States January 01, 2012 Details
March 31, 1996 legacy.reporter (Jim Berry) Essex County, Massachusetts, United States January 01, 2012 Details
April 21, 1996 legacy.reporter (Jim Berry) Essex County, Massachusetts, United States January 01, 2012 Details
March 28, 1998 legacy.reporter (Jim Berry) Essex County, Massachusetts, United States January 01, 2012 Details
March 29, 1998 legacy.reporter (Jim Berry) Essex County, Massachusetts, United States January 01, 2012 Details