Booklouse

Damp, dark, and warm areas with high humidity, such as behind wallpaper, in cereal boxes, or among old books and papers.

Feeds primarily on microscopic fungi, molds, and organic matter such as starch, book bindings, and grain dust.

Active year-round in indoor environments; they do not fly and move in quick, jerky bursts. They thrive in humidity above 50% and do not undergo a larval stage, instead hatching as nymphs that resemble miniature adults.

They do not bite humans or pets and are not known to transmit diseases. They are considered a nuisance pest that can contaminate stored food or cause minor damage to paper goods and book glue in large numbers.