Household Casebearer

Scientific Name: Phereoeca uterella

Order & Family: Lepidoptera, Tineidae

Size: 8mm to 13mm in length

Household Casebearer

Natural Habitat

Commonly found inside residential homes, garages, and sheds, often on walls or under furniture.

Diet & Feeding

Larvae feed on spider webs, debris, and natural fibers such as wool, hair, and silk.

Behavior Patterns

The larva constructs a spindle-shaped silk case covered in dust, sand, and debris for protection; it can protrude its head from either end to move or feed.

Risks & Benefits

They are considered minor household pests as they may damage silk or woolen fabrics, but they do not pose a direct health risk to humans.

Identified on: 6/19/2026