Booklice

Natural Habitat

Damp, warm environments with high humidity; often found in books, papers, food pantries, and behind wallpaper.

Diet & Feeding

Microscopic fungi, mold, mildew, starch-based glues (like those in book bindings), and occasional grain products.

Behavior Patterns

They are wingless, fast-running insects that thrive in humidity above 60%. They do not undergo a larval stage, instead hatching from eggs as miniature versions of adults (nymphs).

Risks & Benefits

They do not bite humans or pets and do not spread disease. They are primarily nuisance pests that indicate a moisture or mold problem; they can cause minor damage to stored paper products or contaminate dry food goods.

Identified on: 3/28/2026