The head louse is an obligate ectoparasite of humans. Head lice are wingless insects that spend their entire lives on the human scalp and feed exclusively on human blood. Humans are the only known hos
The body louse or clothing louse, informally called the cootie, is a hematophagic ectoparasite louse that infests humans. It is one of three lice which infest humans, the other two being the head lous
Head louse
…them incapable of jumping, or even walking efficiently on flat surfaces. The non-disease-carrying head louse differs from the related disease-carrying body louse (Pediculus humanus humanus) in preferring to attach eggs to scalp hair rather than to clothing. The two subspecies are morphologically almost identical…