The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans that causes head lice infestation (pediculosis capitis). Head lice are wingless insects spending their entire lives on the human scalp and feeding exclusively on human blood. Humans are the only known hosts of this specific parasite, while chimpanzees host a closely related species, Pediculus schaeffi. Other species of lice infest most orders of mammals and all orders of birds, as well as other parts of the human body. Lice differ from other hematophagic ectoparasites such as fleas in spending their entire lifecycle on a host. Head lice cannot fly, and their short, stumpy legs render them incapable of jumping, or even walking efficiently on flat surfaces.
Ketua kutu (Pediculus humanus capitis) adalah ectoparasite obligat manusia yang menyebabkan serangan kutu (pediculosis capitis). Kutu kepala adalah serangga bersayap menghabiskan keseluruhan hidup mereka pada kulit kepala manusia dan makan semata-mata pada darah manusia. Manusia adalah satu-satunya pasukan tuan rumah yang diketahui parasit tertentu ini, manakala cimpanzi menjadi hos kepada spesies yang berkait rapat, Pediculus schaeffi. spesies lain kutu mengerumuni perintah yang paling mamalia dan semua pesanan burung, serta bahagian-bahagian lain di dalam badan manusia. Kutu berbeza daripada ektoparasit hematophagic lain seperti kutu dalam membelanjakan keseluruhan kitaran hayat mereka pada tuan rumah. Kutu tidak boleh terbang, dan pendek, kaki pendek dan gemuk mereka menyebabkan mereka tidak berupaya untuk melompat, atau berjalan dengan cekap pada permukaan rata.
The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans that causes head lice infestation (pediculosis capitis). Head lice are wingless insects spending their entire lives on the human scalp and feeding exclusively on human blood. Humans are the only known hosts of this specific parasite, while chimpanzees host a closely related species, Pediculus schaeffi. Other species of lice infest most orders of mammals and all orders of birds, as well as other parts of the human body. Lice differ from other hematophagic ectoparasites such as fleas in spending their entire lifecycle on a host. Head lice cannot fly, and their short, stumpy legs render them incapable of jumping, or even walking efficiently on flat surfaces.