AppearanceThe wings of the male are greyish brown and look frayed, with a wingspan of 15 to 19 millimeters. The females do not have wings, as is usual for bagworm moths.
FoodThe caterpillars feed on lichen from the genus ''Parmelia'', but they may also eat plant remains. They live in a protective casing made of grass or bark that is usually attached to a tree. The females remain in this casing when adult. The males' flight time ranges from May to June.
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