Household Casebearer

Scientific Name: Phereoeca uterella

Order & Family: Lepidoptera: Tineidae

Size: 8 to 13 mm long

Household Casebearer

Natural Habitat

Found inside buildings, particularly in humid or damp areas like bathrooms and closets

Diet & Feeding

Larvae feed on spider webs, wool, hair, and various biological remains

Behavior Patterns

The larva builds a flattened, spindle-shaped protective case out of silk and dust/debris; it can emerge from either end to move or feed

Risks & Benefits

Generally considered a minor household pest; they do not bite humans but can cause damage to natural fiber textiles or fabrics

Identified on: 2/27/2026