Booklouse

Natural Habitat

Found in warm, damp environments; often seen on bookshelves, in food pantries, window sills, and areas with high humidity or mold growth.

Diet & Feeding

Feeds on microscopic fungi, mold, starchy paste (like book binding glue), grains, and organic debris.

Behavior Patterns

Wingless and very fast-moving; they do not fly or jump but run quickly when disturbed. They are attracted to humidity and are often indicators of dampness.

Risks & Benefits

Generally harmless to humans (they do not bite or spread disease). However, they can contaminate dry food goods and may cause allergic reactions in sensitive individuals if present in large numbers. Beneficial as detritivores in nature.

Identified on: 2/25/2026