Tinea pellionella (Case-bearing clothes moth larva)

Inhabits indoor environments such as homes, closets, and storage areas, as well as bird nests outdoors.

Feeds on keratin-containing animal products, including wool, fur, feathers, hair, silk, and sometimes dried organic materials.

The larva constructs a protective, portable silken case incorporating debris from its food source. It carries this case while feeding and eventually pupates inside it. Adults do not feed.

Considered a household pest because the larvae cause significant damage to clothing, carpets, and upholstery made from natural fibers. They provide no significant benefit to human environments.