Bug Identifier
Household Casebearer
Community identification

Household Casebearer

Phereoeca uterella

Order & Family
Order: Lepidoptera, Family: Tineidae
Size
Case length is approximately 8-13 mm long.
See this bug in the Encyclopedia

Natural Habitat

Typically found indoors in humid climates, often seen on walls, ceilings, or under furniture in houses.

Diet & Feeding

Larvae feed on spider webs and natural fibers like wool, fur, hair, and silk.

Behavior Patterns

The larva builds a flattened, spindle-shaped case from silk and debris (dust, sand, fibers). It can move the case and poke its head out of either end to feed. They undergo complete metamorphosis within the case.

Risks & Benefits

They are considered a minor household pest because they can damage silk or wool fabrics and spider webs. They pose no physical risk to humans or pets.