Bug Identifier
Household casebearer
Community identification

Household casebearer

Phereoeca uterella

Order & Family
Lepidoptera: Tineidae
Size
Larval case is about 9 to 14 millimeters long.
See this bug in the Encyclopedia

Natural Habitat

Found indoors on walls, ceilings, and in dark, undisturbed areas with natural fibers.

Diet & Feeding

Larvae feed on spider webs, dust, hair, fur, and keratin-rich fibers like wool.

Behavior Patterns

Larvae construct a portable flattened case from silk and debris, dragging it along surfaces as they move. They pupate within this same case before emerging as small moths.

Risks & Benefits

They do not bite or transmit disease, but larvae can damage carpets, clothing, and stored textiles.