Bug Identifier
Booklouse (or Psocid)
Community identification

Booklouse (or Psocid)

Liposcelis spp. (Common genus for household booklice)

Order & Family
Order Psocodea (formerly Psocoptera), Family Liposcelididae
Size
Very small, typically 1 mm to 2 mm in length.
See this bug in the Encyclopedia

Natural Habitat

Found indoors in high-humidity areas such as bathrooms, kitchens, and basements. They thrive in damp books, cardboard boxes, wallpaper paste, and stored grains.

Diet & Feeding

They feed on microscopic molds, fungi, starch, paper glue, wallpaper paste, and occasionally stored dry food products like flour or grains.

Behavior Patterns

They are wingless, soft-bodied insects that move in quick, jerky motions. They do not bite or sting but reproduce rapidly in humid environments.

Risks & Benefits

They are generally harmless nuisance pests that do not bite humans or pets and do not transmit disease. However, their presence indicates high humidity and potential mold growth, and large numbers can contaminate stored food products.