Acari (or Acarina) are a taxon o arachnids that contains mites an ticks.

Acari
Temporal range: Early Devonian–recent
Peacock mite, Tuckerella sp.jpg
Peacock mite (Tuckerella sp.),
false-colour SEM, magnifee'd 260×
Scientific classification e
Kinrick: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Cless: Arachnida
Subcless: Acari
Leach, 1817
Superorders