Case-bearing clothes moth larva (likely)

Dark, undisturbed indoor areas such as closets, carpets, upholstery, and wall or floor cracks. Larvae often remain inside portable silk-and-fiber cases.

Larvae eat keratin-containing materials, including wool, fur, feathers, hair, and insect remains. Adults generally do not feed and do not damage fabrics.

The larva constructs and carries a cylindrical case made from silk and fibers, emerging to graze while remaining concealed. It pupates within the case; adults are small, dull-colored moths that avoid light.

Not dangerous to people and does not bite, sting, or transmit disease. Larvae can damage woolens, carpets, furs, and other natural-fiber materials; vacuuming and laundering or heat-treating fabrics helps control them.