Plaster Bagworm

Typically found on domestic walls and interior surfaces, particularly in humid climates. They favor dark, secluded areas where dust and fibers accumulate.

Case-bearing larvae consume spider silk, wool fibers, hair, and detritus found indoors.

The larva builds a flattened, spindle-shaped silken case covered in sand or debris. It can emerge from either end of the case to feed or move and eventually pupates inside this protective structure.

Primarily a household nuisance pest that causes minor damage to natural fiber fabrics like wool or silk. They do not pose health risks to humans or pets but indicate high indoor humidity.