North American Ecology (US and Canada)
provided by North American Butterfly Knowledge Network
Boloria napaea is resident to Alaska and across northwestern Canada, and to the Wind River mountains of Wyoming as a small, separate population; subspecies range from the Pyrenees to Siberia (Scott 1986). Habitats are Arctic/Alpine zone moist tundra (Alpine meadows in Wyo). Host plants are largely restricted to herbaceous species in genus Polygonum (Polygonaceae); in Europe also species of Viola (Violaceae) and Vaccinium (Ericaceae). Eggs are laid haphazardly near the host plant. Individuals are biennial, overwinter as first instar larvae the first winter, as older larvae the second winter. There is one flight each year with the approximate flight time late June-July31 in the Arctic, late July-Aug 15 in Wyo. (Scott 1986). Some authorities classify as Boloria alaskensis.
Conservation Status
provided by University of Alberta Museums
Not of concern.
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Cyclicity
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The single yearly brood flies from early July to early August, depending on snowpack.
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Distribution
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Siberia to Alaska, south to the Willmore Wilderness, Alberta and east to the west shore Hudson Bay (Layberry et al. 1998, Bird et al. 1995), with isolated populations in Wyoming (Scott 1986).
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General Description
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"The black-spotted, orange upperside is immediately recognizable as belonging to a
Boloria. The hindwing shape, with a slight outward point at the outer margin, is however unique to
napaea. Females are slightly larger and have a washed-out pale orange upperside ground colour.
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Habitat
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A species of moist alpine and subalpine meadows.
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Life Cycle
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The immature stages of North American populations are undescribed. Larvae may overwinter twice, taking two seasons to reach maturity. Males patrol about 30 cm above the ground (Scott 1986).
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Trophic Strategy
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The larval foodplant is unknown; possibly Vaccinium (Guppy & Shepard 2001) and / or Alpine Bistort (Polygonum viviparum) in BC (Scott 1986).
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Boloria napaea
provided by wikipedia EN
Boloria napaea, the Napaea fritillary or mountain fritillary, is a butterfly of the family Nymphalidae.
Distribution
In Europe the species is found in the Alps, mountainous areas in northern Scandinavia and very local in the eastern parts of the Pyrenees. In North America it is found in Alaska, northwestern Canada, and in small populations in the Canadian part of the Rocky Mountains, Alberta, and Wyoming. In Asia it is found in Siberia, the Altai Mountains, and the Amur Oblast.
Descripetion
The wingspan is 35–48 mm. The upperside is orange with brown basal suffusion and sometimes even purplish gray in the female, decorated with brown designs, with small scallops and a line of submarginal round dots. The hindwing forms an angle at its anterior edge.
On the forewing undersides the patterns are little marked, the apex is adorned pearly spots, and the hindwing undersides are clear because they are adorned with pearlescent designs.
The butterfly flies from June to August depending on the location.
In Europa the larvae feed on Viola species, especially V. biflora and also Polygonum viviparum. In North America it also feeds on Polygonum bistortoides.
Boloria napaea napaea
Subspecies
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B. n. altaica (Grum-Grshimailo, 1893) Tarbagatai, Sayan, Altai, South Transbaikalia, Mongolia
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B. n. pustagi Korshunov & Ivonin, 1995 Northeast Altai
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B. n. vinokurovi Dubatolov, 1992 East Yakutia
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B. n. contaminata Gorbunov, 2007
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Boloria napaea: Brief Summary
provided by wikipedia EN
Boloria napaea, the Napaea fritillary or mountain fritillary, is a butterfly of the family Nymphalidae.
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