Appearance
The length of the forewings is 8.5–14 mm. The colour of the forewings varies from pale yellow to cream or light brown. The hindwings are brownish grey and white or yellowish. Adults are on wing from May to August in two generations per year.
Food
The larvae feed on ''Aster'', ''Erigeron annuus'', ''Silphium'', ''Solidago'', ''Symphyotrichum novae-angliae'', ''Hypericum perforatum'', ''Medicago sativa'', ''Melilotus officinalis'', ''Trifolium'', ''Monarda fistulosa'', ''Picea glauca'', ''Pinus banksiana'', ''Pinus resinosa'', ''Pinus strobus'', ''Pinus sylvestris'', ''Fragaria'', ''Malus'', ''Prunus pumila'', ''Prunus serotina'', ''Prunus virginiana'', ''Rosa'', ''Comandra umbellata'', ''Ulmus'' and ''Verbena'' from within folded leaves. They reach a length of 16–28 mm. The species overwinters as a mid-instar larva and pupation takes place in the final larval feeding site.References:
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