English: Mites, Ticks.
Synonym:
Acari; Acarina
Clades: ± 125 families; 22000 species.
Zoology: 2 orders,
Acariformes, Actinotrichida),
Parasitiformes (or Anactinotrichida), and Opilioacariformes; the latter is often considered a subgroup within the
Parasitiformes; minute to small; more than 50000 species.
ZoologyKeynotes: few synapomorphies
FamiliesDemodex: chiggers and scrub itch mites; medically important
Tetranychidae: spider mites; agriculturally important.
Eriophyidae: Gall mites; agriculturally important.
TaxonomyTrombidiformes can be divided into Sphaerolichida and Prostigmata.