Conservation Status
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An uncommon and local species in Alberta.
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Cyclicity
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In Alberta it flies in late June and July.
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Distribution
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Another western species. In Alberta it has been collected only in the extreme southeastern corner.
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General Description
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A. duanca is a medium-size dark blackish or red-brown Abagrotis superficially resembling a number of other Abagrotis sp., including placida, hermina, dodi and reedi. The contrasting pale-tipped scales of the prothoracic collar are diagnostic. The reniform and round orbicular are usually ringed with pale scales, which also mark the subterminal line. The hindwings are dull black.
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Habitat
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Dry sagebrush grasslands.
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Life Cycle
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Poorly known. There is a single annual brood. Adults come to light
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Trophic Strategy
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The larnval host is reported to be sagebrush (Artemesia tridentata) (Lafontaine, 1998); other species of sagebrush are undoubtedly also used.
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