Bug Identifier
Household Casebearer / Plaster Bagworm
Community identification

Household Casebearer / Plaster Bagworm

Phereoeca uterebella

Order & Family
Order: Lepidoptera, Family: Tineidae
Size
Case size typically ranges from 8mm to 13mm in length.
See this bug in the Encyclopedia

Natural Habitat

Commonly found inside residential homes on walls, floors, and under furniture, as well as on exterior building surfaces and spider webs.

Diet & Feeding

The larvae feed on wool, silk, hair, felt, and spider webs, often consuming dead organic matter and animal fibers.

Behavior Patterns

The larva constructs a protective silk case covered in dust, sand, or debris and carries it while it moves. Once fully developed, it attaches the case to a vertical surface to pupate.

Risks & Benefits

A minor household pest that can damage natural fiber textiles; however, they pose no direct health risk to humans or pets and are beneficial for recycling organic detritus in some environments.