Parasitiformes are a superorder of Arachnids, constituting one of the two major groups of mites, alongside Acariformes. Parasitiformes has, at times, been classified at the rank of order or suborder.
Opilioacaridae is the sole family of mites in the order Opilioacarida, made up of about 13 genera. The mites of this family are rare, large mites, and are widely considered primitive, as they retain six pairs of eyes, and abdominal segmentation. They have historically been considered separate from other mites belonging to Acariformes and Parasitiformes, but are now generally considered a subgroup of Parasitiformes based on molecular phylogenetics.
Mesostigmata is an order of mites belonging to the Parasitiformes. They are by far the largest group of Parasitiformes, with over 8,000 species in 130 families. Mesostigmata includes parasitic as well as free-living and predatory forms. They can be recognized by the single pair of spiracles positioned laterally on the body.
Dermanyssoidea is a superfamily of mites, including most of the mites which parasitise vertebrates.
Hydrogamasus is a genus of mites in the family Ologamasidae. There are at least four described species in Hydrogamasus.
Larinyssus is a genus of mites in the family Rhinonyssidae. There are about five described species in Larinyssus.
Pipronyssus is a genus of mites in the family Rhinonyssidae. This genus has a single species, Pipronyssus manaci.
Ptilonyssus is a genus of mites in the family Rhinonyssidae. There are at least 230 described species in Ptilonyssus.
Rallinyssus is a genus of mites in the family Rhinonyssidae. There are about 12 described species in Rallinyssus.
Rhinoecius is a genus of mites in the family Rhinonyssidae. There are about 12 described species in Rhinoecius.
Rhinonyssus is a genus of mites in the family Rhinonyssidae. There are more than 30 described species in Rhinonyssus.
Sternostoma is a genus of mites in the family Rhinonyssidae. There are more than 70 described species in Sternostoma.
Tinaminyssus is a genus of mites in the family Rhinonyssidae. There are more than 60 described species in Tinaminyssus.
Trochilonyssus is a genus of mites in the family Rhinonyssidae. This genus has a single species, Trochilonyssus trinitatis.
Tyranninyssus is a genus of mites in the family Rhinonyssidae. There are at least four described species in Tyranninyssus.
Ptilonyssus calvaria is a mite that is parasitic in the nasal passages of some birds found in Alberta and Manitoba, Canada.
Ptilonyssus pinicola is a mite that is parasitic in the nasal passages of some birds found in Alberta and Manitoba, Canada.
Ptilonyssus plesiotypicus is a mite that is parasitic in the nasal passages of some birds found in Alberta and Manitoba, Canada.
Sternostoma setifer is a mite that is parasitic in the nasal passages of some North American birds, including bluebirds and martins.
Sejida is a suborder of mites in the order Mesostigmata. There are about 5 families and 13 described species in Sejida. The oldest known record of the group is an indeterminate deutonymph belonging to Sejidae from the mid Cretaceous (Albian-Cenomanian) aged Burmese amber of Myanmar.
