Booklouse

Commonly found in damp, warm buildings, specifically near books, paper, wallpaper paste, and stored grains

Feed primarily on microscopic mold, fungi, starches, and organic debris

Fast-running, wingless insects that thrive in high humidity; they reproduce rapidly in moist conditions through hemimetabolous metamorphosis

Harmless to humans and pets, as they do not bite or spread disease, but can be a nuisance and may indicate a moisture or mold problem within the home