Community identification
Barklouse (booklouse)
Order Psocodea; species-level identification unavailable from this image
- Order & Family
- Psocodea; likely family Liposcelididae or related indoor psocid family
- Size
- Usually 1–2 mm long; the pictured insect appears within this range.
Natural Habitat
Damp indoor areas, stored paper, books, cardboard, and behind furniture; also occurs on tree bark and foliage outdoors.
Diet & Feeding
Feeds mainly on mold, fungi, algae, organic residues, and microscopic debris rather than paper itself.
Behavior Patterns
Small, soft-bodied insects that move quickly and favor humid, undisturbed locations. Populations increase when indoor humidity is high; some species reproduce without males.
Risks & Benefits
Harmless to people, pets, clothing, and structures, and they do not bite. They help consume fungi and organic matter, though large indoor numbers indicate excess moisture and may contaminate stored materials.