Household Casebearer

Found inside homes, particularly in bathrooms and bedrooms on walls and floors with high humidity

Larvae feed on organic fibers such as spider webs, woollen clothing, and hair

The larva builds a silk-lined protective case covered with environmental debris and sand, and it can move its head to either end of the case to feed

They are nuisance pests that can damage wool fabrics and silk, but they pose no direct health risk to humans