Booklouse

Damp, warm areas with high humidity, often indoors among books, paper, or stored grains

Microscopic fungi, mold, mildew, starch-based glues, and organic debris

Nocturnal and moisture-loving; they move in jerky, rapid bursts and reproduce quickly in humid conditions

Generally harmless to humans but can be a nuisance; may indicate moisture issues or damage starched products and paper