1) Itch mite 2) Mite 
• (n.) Any species of the genus Sarcoptes and related genera of mites, comprising the itch mites and mange mites. • (a.) Of or pertaining to the itch mites.
Sar·cop'tid noun (Zoology) Any species of the genus Sarcoptes and related genera of mites, comprising the itch mites and mange mites. -- adjective Of or pertaining to the itch mites. 
Type: Term Pronunciation: sar-kop′tid Definitions: 1. Common name for members of the Sarcoptidae, a family of mites that includes the genera Sarcoptes, Knemidokoptes, and Notoedres.