Comprehensive Description

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General Description

The hindwing margin is slightly more scalloped in Hypagyrtis than other similar, mid-sized grey geometrids; it is otherwise difficult to characterize this genus externally without visual comparison to species in the Boarmiini such as Aethalura, Iridopsis and Protoboarmia. This genus is taxonomically very difficult, and there are no reliable genitalic differences; H. unipunctaria occurs in the parkland and southern boreal region in Alberta, while H. piniata is associated only with conifers in the north-central region. H. piniata supposedly lacks the brownish shading in the subterminal area found in H. unipunctaria. Treated as H. subatomaria by McGuffin (1977).

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Source: University of Alberta Museums

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