Subclass Acari Leach, 1817 - mites and ticks Superorder Parasitiformes Reuter, 1909 - ticks and ticklike mites Order Mesostigmata Canestrini, 1891 Suborder Trigynaspida Camin & Gorirossi, 1955 Cohort Cercomegistina Camin & Gorirossi, 1955 [monotypic] see Infraorder Cercomegistina Camin & Gorirossi, 1955 1 Superfamily Cercomegistoidea Trägårdh, 1937