Appearance
The length of the forewings is 8.5–11 mm for males and 10.5–12.5 mm for females. The color of the forewings varies from brown to dark purplish brown, with brown to dark brown markings and reticulations. Adults are on wing from June to July in one generation per year in most of the range.
Food
The larvae are polyphagous and have been recorded feeding on the foliage of a large range of plants, including "Rhus", "Erigeron annuus", "Solidago", "Betula", "Viburnum", "Cornus canadensis", "Sedum", "Sempervivum", "Vaccinium", "Lupinus", "Quercus macrocarpa", "Geranium", "Ribes", "Sassafras", "Maianthemum racemosum", "Fraxinus", "Fragaria", "Malus", "Prunus", "Rubus", "Spiraea", "Populus tremuloides", "Salix", "Mandragora", "Tilia americana" and "Viola" species. The larvae have a pale bluish green body and a yellowish brown head. They reach a length of 20–30 mm when full grown. The species overwinters as a third instar larva.References:
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