Plaster Bagworm

Typically found inside residential buildings, garages, and sheds, often clinging to walls or ceilings in humid climates.

Larvae feed on spider webs and natural fibers such as wool and silk, as well as dead organic matter.

The larva constructs a protective silk case covered in sand, dust, and lint. Once it matures and pupates, it emerges as a small moth. The case is open at both ends, allowing the larva to move in either direction.

They are considered a minor domestic nuisance because they can damage silk or wool fabrics. They are not harmful to humans or pets.