Book Louse
Liposcelis rufa

The adult book louse is a minute reddish-brown psocid often found in damp books, stored grain, wall voids, bird nests, and other places where microscopic fungi grow. It grazes on mold, spores, and traces of organic debris, acting more like a scavenger than a true parasite. Adults are wingless, flattened, and quick to disappear into seams and crevices when disturbed. A noticeable presence indoors is often a sign of high humidity rather than an animal infestation that attacks people.
- Type
- Stealth
- Conservation status
- NE
Growth chain
- ?
- Book Louse