What is Acarina

Acarina n. the group of arthropods that in¬cludes the *mites and 'ticks.
Acarus (Tyroglyphus) n. a genus of mites. The flour mite, A. siro (T.farinae), is nonpara-sitic, but its presence in flour can cause a se¬vere allergic dermatitis in flour-mill workers.