Northern Prairie Wildlife Research Center


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Atlas of North Dakota Butterflies

BND: Compton Tortoise Shell; Nymphalis vaualbum ([Denis & Schiffermüller], 1775)
BNA: Compton Tortoiseshell; Nymphalis vaualbum
NDC: NYVA

Habitat: Mature forests; adults drink sap and rotting fruit juices
Larval food: Populus, Betula, Salix spp.
Adult flight: Overwinters as adult, appearing April-May to produce a single annual brood by early July. The species is episodic and somewhat migratory, being rare for several years, then suddenly common.
References: Royer 144, Layberry et al. 202, Opler & Krizek 155, Scott 290

U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/insects/bflynd/nd/119.htm
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Page Last Modified: Saturday, 02-Feb-2013 05:07:09 EST
Menlo Park, CA [caww54]