Household casebearer

Found inside homes, particularly in humid environments, on light-colored walls and in basements.

Larvae feed on spider webs and natural fibers like wool, silk, and human hair, as well as dead insects.

The larva constructs a protective silk case flattened and camouflaged with dust and sand. It can turn around inside the case and protrude from either end to feed or move.

Generally harmless to humans but considered a minor household pest because they can damage silk or woolen clothing and create unsightly cases on walls.