Community identification
Human Head Louse
Pediculus humanus capitis
- Order & Family
- Order: Psocodea, Family: Pediculidae
- Size
- 2.1 to 3.3 mm in length
Natural Habitat
Humans, specifically the hair and scalp.
Diet & Feeding
Obligate ectoparasites that feed exclusively on human blood several times a day.
Behavior Patterns
They are wingless and cannot fly or jump; they move by crawling. Eggs (nits) are glued to the base of hair shafts. They can only survive 1-2 days away from a host.
Risks & Benefits
Cause intense itching due to an allergic reaction to their saliva. While they are not known to transmit disease-causing pathogens, heavy infestations can lead to secondary bacterial infections from scratching.