Appearance
Adult - forewing mottled silvery-gray with dark brownish patches at base and mid-way along costa; several black-rimmed irregular spots in lower half of wing; hindwing pale brownish-gray.Food
Larvae feed on willow (Salix), quaking aspen (Populus tremuloides) and field sagewort (Artemisia campestris ).References:
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https://bugguide.net/node/view/201544