itch mite

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A parasitic mite (Sarcoptes scabiei) that burrows into the skin and causes scabies.

from The Century Dictionary.

• noun A mite which burrows in the skin, and causes the disease called the itch or scabies.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun whitish mites that attack the skin of humans and other animals