Bug Identifier
Body Louse
Community identification

Body Louse

Pediculus humanus humanus

Order & Family
Order: Psocodea (formerly Phthiraptera), Family: Pediculidae
Size
2.3 mm to 3.6 mm (roughly the size of a sesame seed)
See this bug in the Encyclopedia

Natural Habitat

Found on the human body, specifically living and laying eggs (nits) in clothing, bedding, or fabric seams that contact skin.

Diet & Feeding

Obligate hematophage: feeds exclusively on human blood several times a day.

Behavior Patterns

They are crawling insects that cannot jump or fly; they move to the skin only for feeding. They reproduce rapidly, with females laying about 5-10 eggs per day in clothing fibers.

Risks & Benefits

Risks: Can cause intense itching and skin rashes (pediculosis). Unlike head lice, body lice are vectors for serious diseases such as epidemic typhus, trench fever, and louse-borne relapsing fever. There are no ecological benefits.