Household Casemaking Moth (Larva/Case)
Scientific Name: Phereoeca uterella
Order & Family: Lepidoptera: Tineidae
Size: Case typically measures 8-14 mm in length.

Natural Habitat
Found inside homes, particularly in damp areas, on walls, and under furniture.
Diet & Feeding
Larvae feed on spider webs, wool, silk, hair, and other organic debris found in household dust.
Behavior Patterns
The larva constructs a protective spindle-shaped case from silk and environmental debris, which it carries while moving. It can extend its head from either end of the case.
Risks & Benefits
Generally considered a nuisance pest; can cause minor damage to natural fabrics like wool or silk, but poses no direct risk to humans.
Identified on: 5/4/2026