Household Casebearer (Plaster Bagworm)

Indoor environments, particularly on walls and ceilings in humid tropical or subtropical climates

Larvae feed on spider webs, wool, human hair, and dead insects

The larva constructs a protective silk case covered in sand, dust, and debris; it can turn around inside the case and feed from either end

Generally considered a nuisance pest with no health risks to humans, though they can cause minor damage to natural fiber textiles