sem mange mites.mites belong to the subclass acarina (also known as acari) and the class arachnida. mites are among the most diverse and successful of all the invertebrate groups..among the species that attack animals are members of the sarcoptic mange mites(seen here) (family sarcoptidae), which burrow under the skin..x 30 @ 10cm sarcoptic mange mites, coloured scanning electron micrograph (sem). these burrowing mites cause the skin disease scabies. magnification: x30 when printed at 10 centimetres wide.