Common Booklouse

Indoor environments with high humidity, including libraries, kitchens, bathrooms, and within stored grains or wallpaper glue.

Feeds on microscopic fungi, molds, starches, and organic debris found in damp areas or on paper products.

They are wingless, fast-moving, and prefer dark, humid crevices. They reproduce via parthenogenesis (females producing offspring without mating) and thrive when humidity levels exceed 60%.

They do not bite humans or pets and do not spread disease. They are considered nuisance pests that can damage books, glue, and stored food; their presence usually indicates a moisture or mold problem.