Body Louse

Scientific Name: Pediculus humanus humanus

Order & Family: Order: Psocodea; Family: Pediculidae

Size: 2.5 mm to 3.6 mm

Body Louse

Natural Habitat

Found primarily on human clothing, specifically in seams and folds close to the skin for warmth and feeding.

Diet & Feeding

Strict blood-feeders that consume human blood multiple times a day.

Behavior Patterns

They live and lay eggs (nits) in clothing, only moving onto the skin to feed. They are spread through direct body contact or sharing infested clothing/bedding.

Risks & Benefits

Risks include intense itching, skin rashes, and the transmission of serious diseases such as epidemic typhus, trench fever, and louse-borne relapsing fever.

Identified on: 12/26/2025