Booklouse

Natural Habitat

Damp, humid areas such as bathrooms, kitchens, behind wallpaper, and in stored books or papers.

Diet & Feeding

Feeds on microscopic mold, fungi, algae, and starchy glues found in book bindings and wallpaper.

Behavior Patterns

Prefer high humidity (above 60%); they are fast-running but wingless and often seek out dark, undisturbed locations.

Risks & Benefits

Harmless to humans and pets as they do not bite or spread disease; however, they indicate a moisture problem and can damage old books or documents in large numbers.

Identified on: 12/27/2025