Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Head louse

Pediculus capitis de Geer

Order: Phthiraptera
Family: Pediculidae

Size range

  • Tiny insects, 2–3 mm long


  • Worldwide

Life History

  • Parasites of humans
  • Spread easily from head to head, especially at schools
  • Blood sucking causes irritation and can introduce infection
  • Eggs, called nits, are attached to hair