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Trombidiformes is a large, diverse
e.g.
order
Order, ORDER or Orders may refer to:
* A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
...
of mite
Mites are small arachnids (eight-legged arthropods) of two large orders, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari. However, most recent genetic analyses do not recover the two as eac ...
s.
Taxonomy
In 1998, Trombidiformes was divided into the Sphaerolichida and theProstigmata
Prostigmata is a suborder of mites belonging to the order Trombidiformes, which contains the "sucking" members of the "true mites" (Acariformes).
Many species are notorious pests on plants. Well-known examples of prostigmatan plant parasites ...
. The group has few synapomorphies
In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to ...
by which it can be defined, unlike the other major group of acariform mites, Sarcoptiformes
The Sarcoptiformes are an order (biology), order of mites comprising over 15,000 described species in around 230 families. Previously it was divided into two suborders, Oribatida and Astigmatina, but Oribatida has been promoted to an order, and A ...
. Its members include medically important mites (such as ''Demodex
''Demodex'' is a genus of tiny mites that live in or near hair follicles of mammals. Around 65 species of ''Demodex'' are known. Two species live on humans: ''Demodex folliculorum'' and ''Demodex brevis'', both frequently referred to as eyelash ...
'', the chiggers
''Trombicula'', known as chiggers, red bugs, scrub-itch mites, or berry bugs, are small arachnids (eight-legged arthropods) in the Trombiculidae family. In their larval stage, they attach to various animals and humans, then feed on skin, often ...
, and scrub-itch mites) and many agriculturally important species, including the spider mites (Tetranychidae). The superfamily Eriophyoidea
Eriophyoidea are a superfamily of herbivore, herbivorous mites. All post-embryonic instars lack the third and fourth pairs of legs, and the respiratory system is also absent.
The taxonomy of this group has always been confused. There were famili ...
, traditionally considered members of the Trombidiformes, have been found to be basal mites in genomic analyses, sister to the clade containing Sarcoptiformes and Trombidiformes.
The 2004 classification retained the two suborders, comprising around 125 families and more than 22,000 described species.
In the 2011 revised classification, the order now contains 151 families, 2235 genera
Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...
and 25,821 species, and there were another 10 species with 24 species that present only as fossils. These 151 families were classified into the same two major suborders:
* Sphaerolichida OConnor, 1984: Now contains only two families;
* Prostigmata
Prostigmata is a suborder of mites belonging to the order Trombidiformes, which contains the "sucking" members of the "true mites" (Acariformes).
Many species are notorious pests on plants. Well-known examples of prostigmatan plant parasites ...
Kramer, 1877: Still the biggest branch in this taxon, with four infraorders and 40 superfamilies.
See also
e.g.
Hydrachnidae
Hydrachnidae is a family of mites in the superfamily (biology), superfamily Hydrachnoidea, first defined by William Elford Leach.
Description
The family was defined within Hydrachnoidea. These mites may be brilliant red or orange in colour, unusu ...
* '' Hydrachna''
e.g. others:
* '' Alycus''
* '' Bdellodes''
* '' Eupodes''
References
External links
* * {{Taxonbar, from=Q686325 Arachnid orders