(Latin: Sarcoptes scabiei)
This mite lives actually in the skin, burrowing tunnels in the upper layer, rather like a mole. It is only 1/3 mm long and is rarely seen, but its presence is revealed by the inflamed and eczema-like condition it causes (see p. 52).
The eggs are laid in the burrows made by the female and it takes a good two weeks for the young to reach the adult stage. Infection is usually by females with eggs being transferred from one person to another by direct contact.