Bug Identifier
Louse (Head or Body Louse)
Community identification

Louse (Head or Body Louse)

Pediculus humanus

Order & Family
Order: Psocodea; Family: Pediculidae
Size
2mm to 4mm (roughly the size of a sesame seed).
See this bug in the Encyclopedia

Natural Habitat

Exclusively on the human body, specifically in hair or clothing fibers, depending on the subspecies.

Diet & Feeding

Obligate ectoparasites that feed exclusively on human blood several times a day.

Behavior Patterns

They are wingless and crawl between hosts. They glue their eggs (nits) to hair shafts or clothing. They cannot survive for more than 24-48 hours away from a human host.

Risks & Benefits

Risks include intense itching, allergic reactions to saliva, and potential secondary skin infections from scratching. Body lice can transmit diseases like typhus, though head lice do not.