Booklice

Scientific Name: Liposcelis spp.

Order & Family: Order Psocodea (formerly Psocoptera), Family Liposcelididae

Size: 1 to 2 mm in length

Booklice

Natural Habitat

High-humidity indoor environments, stored grain, damp books, and wallpaper paste.

Diet & Feeding

Feeds on microscopic mold, fungi, starches, and organic debris.

Behavior Patterns

Fast-moving, wingless in many indoor species, and prefers dark, moist areas. They undergo incomplete metamorphosis.

Risks & Benefits

Generally harmless to humans but can contaminate stored food products and damage old book bindings in large numbers.

Identified on: 6/13/2026