Household Casebearer Moth

Natural Habitat

Indoors, particularly in quiet, undisturbed areas like closets, attics, storage rooms, wall voids, and under furniture. Can also be found outdoors in sheltered locations.

Diet & Feeding

Larvae feed on natural fibers (wool, silk, felt, fur), synthetic materials, spiderwebs, and sometimes insect remains. Adults do not feed.

Behavior Patterns

Larvae construct a case from silk and debris, which they carry with them. Adults are typically nocturnal and attracted to light. Females often lay eggs on suitable materials for larval development.

Risks & Benefits

Risk: Considered a household pest as larvae can damage fabrics, carpets, and other stored materials containing natural fibers. They do not pose direct health risks to humans. Benefit: No significant direct benefits to humans, but play a small role in decomposition within their natural outdoor habitats.

Identified on: 9/4/2025