Astigmata

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Phylum: Arthropoda
Subphylum: Chelicerata
Classis: Arachnida
Subclassis: Acari
Superordo: Acariformes
Ordo: Astigmata
Subordines: "Acaridia" - Psoroptidia - incertae sedis

References

* Domrow, R. 1992: Acari Astigmata (excluding feather mites) parasitic on Australian vertebrates: an annotated checklist, keys and bibliography. Invertebrate taxonomy, 6: 1459-1606. doi: 10.1071/IT9921459
* OConnor, B.M. 1984: Nomenclatural status of some family-group names in the nonpsoroptidid Astigmata (Acari: Acariformes). International journal of acarology, 10: 203-207. doi: 10.1080/01647958408683378

links

* SYNOPSIS OF THE DESCRIBED ASTIGMATA OF THE WORLD

------------

The Astigmata are one of the orders of mites. They belong to the Sarcoptiformes, which contain the "biting" Acariformes. Many species are parasites of vertebrates. Most notorious among these are the Psoroptidia, which contain such notable taxa as feather mites and Sarcoptes scabiei.

The Astigmata are of unclear relationships to those mites commonly united as Oribatida. The latter appear to be paraphyletic and in need of division into two orders, as some of them (e.g. certain Desmonomata) seem closer to Astigmata than to other Oribatida.
References

* Joel Hallan's Biology Catalog: Astigmata