Booklouse
Scientific Name: Liposcelis spp.
Order & Family: Psocodea: Liposcelididae
Size: 1 - 2 mm

Natural Habitat
Found in damp, humid environments, especially among books, papers, wallpaper, and stored grain
Diet & Feeding
Feeds on microscopic mold, fungi, starches, and organic glues used in book bindings
Behavior Patterns
Mainly nocturnal and highly active in high humidity; they do not fly but can crawl quickly; population growth is tied to moisture levels
Risks & Benefits
Harmless to humans as they do not bite or spread disease; however, they can be a nuisance and signal a potential mold or humidity issue in the home
Identified on: 1/4/2026