Bug Identifier
Booklice
Community identification

Booklice

Liposcelis spp.

Order & Family
Psocodea: Liposcelididae
Size
1 to 2 millimeters in length
See this bug in the Encyclopedia

Natural Habitat

Damp, warm environments such as under bark, in leaf litter, or indoors in libraries, pantries, and damp storage areas.

Diet & Feeding

Feeds primarily on microscopic fungi, mold, mildew, starch, and organic debris.

Behavior Patterns

Active runners that avoid light; they do not fly. They undergo simple metamorphosis (egg, nymph, adult) and thrive in high humidity.

Risks & Benefits

They are considered nuisance pests rather than health hazards. They do not bite or transmit disease, but their presence indicates moisture issues or mold that could damage belongings like books or grain.