Carpet Beetle Larva

Natural Habitat

Found indoors in dark, undisturbed areas such as under carpets, in closets, behind baseboards, and inside air ducts. In nature, they inhabit birds nests or animal dens.

Diet & Feeding

Feeds on keratin-rich natural fibers including wool, silk, fur, feathers, hair, pet dander, and dried insects. They do not eat synthetic fabrics unless soiled with natural products.

Behavior Patterns

Larvae prefer darkness and are often found active during the worm-like larval stage which can last from 2 months to a year. They molt multiple times, leaving behind distinctive shed skins.

Risks & Benefits

Generally harmless to human health, although contact with the larvae's tiny hairs (hastisetae) can cause an itchy allergic dermatitis in some people. They are a significant household pest that can damage clothing, carpets, and stored biological specimens.

Identified on: 2/24/2026