Class Arachnida Lamarck, 1801 Subclass Acari Leach, 1817 - mites and ticks Superorder Acariformes Zakhvatkin, 1952 - mitelike mites 1 Order Actinedida van der Hammen, 1968 [1972?] see Suborder Prostigmata Kramer, 1877 2 Order Astigmata Canestrini, 1891 see Hyporder Astigmata Canestrini, 1891 3 Order Oribatida van der Hammen, 1968 see Suborder Oribatida van der Hammen, 1968