Booklice

Scientific Name: Psocid (Liposcelis spp.)

Order & Family: Order: Psocodea, Family: Liposcelididae

Size: 1 to 2 mm in length.

Booklice

Natural Habitat

High humidity environments, damp areas like bathrooms, kitchens, behind wallpaper, in stored books, or in moldy grain.

Diet & Feeding

Microscopic fungi, mold, mildew, starch, and organic detritus.

Behavior Patterns

They are scavengers that prefer dark, damp conditions. They do not bite humans or pets but can multiply rapidly if moisture levels are high.

Risks & Benefits

Generally harmless to humans; they are nuisances that indicate moisture or mold problems in a building. They can contaminate food stores if moisture is present.

Identified on: 5/15/2026