dermatophagys bovis

from The Collaborative International Dictionary of English v.0.48
Mange \Mange\, n. [See {Mangy}.] (Vet.)
   The scab or itch in cattle, dogs, and other beasts.
   [1913 Webster]

   {Mange insect} (Zool.), any one of several species of small
      parasitic mites, which burrow in the skin of cattle.
      horses, dogs, and other animals, causing the mange. The
      mange insect of the horse ({Psoroptes equi} or
      {Dermatodectes equi}), and that of cattle ({Symbiotes
      bovis} or {Dermatophagys bovis}) are the most important
      species. See {Acarina}.
      [1913 Webster]
    

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