Household Casebearer Moth

Natural Habitat

Indoors, especially in humid environments like bathrooms, attics, and basements. They prefer dark, undisturbed areas where they can find food sources.

Diet & Feeding

Larvae feed on natural fibers like wool, felt, silk, and sometimes cotton, as well as spiderwebs, dead insects, and detritus in dark, undisturbed areas.

Behavior Patterns

Larvae construct silken cases and attach debris to them. They can be found crawling on surfaces, carrying their cases. Adults are typically short-lived and do not feed. They are attracted to lights.

Risks & Benefits

Potential risks include damage to textiles, clothing, carpets, and other natural fiber products. Generally, they are considered pests. No significant benefits to humans are known; in nature, they contribute to decomposition.

Identified on: 8/30/2025