Louse (likely Head Louse or Body Louse)

Scientific Name: Pediculus humanus

Order & Family: Order: Psocodea (formerly Phthiraptera), Family: Pediculidae

Size: 2.0 mm to 3.5 mm in length

Louse (likely Head Louse or Body Louse)

Natural Habitat

Exclusively on the human body, specifically hair follicles (head) or clothing seams (body).

Diet & Feeding

Obligate hematophagy; they feed exclusively on human blood multiple times a day.

Behavior Patterns

They are wingless and cannot jump or fly; they crawl and cling to hair or fabric with specialized claws. They reproduce rapidly via eggs called nits that are glued to hair shafts or clothing fibers.

Risks & Benefits

Risks include intense itching, scalp irritation, and secondary skin infections from scratching. Body lice can transmit serious diseases like typhus, though head lice are primarily a nuisance and do not spread disease.

Identified on: 3/12/2026