Booklouse

Natural Habitat

Indoor environments with high humidity, often found in stored books, papers, food products, and damp areas like bathrooms or kitchens. They feed on microscopic mold and fungi growing on organic matter.

Diet & Feeding

Microscopic mold, fungi, starch, glue in book bindings, wallpaper paste, cereal products, and other organic debris.

Behavior Patterns

Booklice are small, soft-bodied insects that are typically very skittish and move quickly when disturbed. They are sensitive to humidity and thrive in damp conditions. Most species are wingless or have reduced wings.

Risks & Benefits

Generally considered harmless to humans, they do not bite or transmit diseases. However, large infestations can damage books, papers, and contaminate stored food. They can be an indicator of high humidity and potential mold growth in a home or building.

Identified on: 9/22/2025