Household Casebearer

Indoors in humid climates, often found on walls, under furniture, or on wool carpets and fabrics.

Larvae feed on spider webs, wool, silk, hair, and organic detritus.

The larva builds a flattened, spindle-shaped case from silk and environmental debris (sand, lint). It can move and feed from both ends of the case before pupating inside.

Considered a household pest; can damage clothing and natural fabric textiles. Harmless to humans and pets, but an indicator of indoor humidity.