Comprehensive Description

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General Description

One of the largest underwing moths found in Alberta (7.0 -7.8 cm wingspan). The forewings are pale grey, mottled with darker grey and whitish patches. There are poorly defined but noticeable black streaks at the wing base, in the fold and in the sub-apical area. The area just inside the reniform spot is white, and the space immediately below the reniform forms a large, rather prominent squared white spot. A third pale area is located midway down the subterminal band. The hindwings are salmon or orange-pink, crossed by a rather narrow and cleanly defined black median band. There is a wide black terminal band bordered by a narrow and somewhat scalloped orange-white fringe. Adults are alike, and both sexes have simple antennae. The large size, patchy looking grey forwings and salmon-colored hindwings will help to identify parta.


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© University of Alberta Museums

Source: University of Alberta Museums

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