Conservation Status
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Of no concern.
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Cyclicity
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Mid May to mid July.
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Distribution
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Newfoundland and Labrador west to British Columbia, north to Alaska and the Yukon (Munroe 1976). The Type Locality is Square Island, Labrador. In Alberta, reported from Areas 8 (Red Deer), 10 (Edmonton), 19 (Banff) and 20 (Nordegg) (Bowman 1951). Also known from Jasper National Park.
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General Description
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Ground color of both fore and hind wings above fulvous brown with dull yellowish-buff PM and ST lines. Wingspan 14-18 mm. Very close to Pyrausta subsequalis plagialis but the wings are somewhat duller and it has a more northern distribution. Regarded as Pyrausta subsequalis borealis in Hodges et al. (1983), but Munroe (1976) comments "Forbes, in my opinion correctly, considered it a 'northern' variety". No genitalic differences between the two are mentioned by Munroe (1976).
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Habitat
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Boreal Forest
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Life Cycle
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Unknown, Adults come to light.
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Trophic Strategy
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Unknown. The larvae may possibly feed on a species of mint.
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Pyrausta borealis
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Pyrausta borealis: Brief Summary
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Pyrausta borealis, the northern pyrausta moth, is a moth in the family Crambidae. It was described by Alpheus Spring Packard in 1867. It is found in North America, where it has been recorded from Newfoundland and Labrador west to British Columbia, north to Alaska and the Yukon. The habitat consists of boreal forests.
The wingspan is 14–18 mm. The ground color of the fore- and hindwings is fulvous brown with dull yellowish-buff postmedial and subterminal lines. Adults are on wing from mid-May to mid-July.
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