Human lice

These lice are small, pale, and elongate, with short, strongly clawed legs for gripping onto their hosts. The small head bears distinctively dark eyes. The human louse, Pediculus humanus, also occurs on some monkeys It has two subspecies: P. humanus subsp. corporis (the Body Louse) and P. humanus subsp. capitis (the I lead Louse). I he other species in the family, P. schaefft, is found exclusively on apes.

• Like Cycle The Body Louse lives and lays eggs in the fibers of clothing, whereas the Head Louse lives entirely in hair and glues its eggs (nits) to hair.

• OCCl RRENCE Worldwide. On humans, apes, and monkeys.

• remark Outbreaks of head lice arc common among young children. Resistance to insecticidal shampoos is developing and regular washing and fine combing is often just as effective. Up until World War II. many more soldiers died of louse-borne epidemic typhus and relapsing fever than were ever killed in battle.

narrow head strong, curved legs •

pedicl el s ii r ma n i s capitis, like all human lice, has mouthparts specially adapted for sucking blood.

pear-shaped. flattened body body gorged • with blood pear-shaped. flattened body body gorged • with blood

pedicl el s hi 'mani IS corporis, © the Body Louse, lives in people's ^ clothing and can transmit the organism that causes typhus.

Order I>| i n uraPTKRA

Family pmiRII)AK

No. of species 2

small head antennae

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