Parasitiformes

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Parasitiformes
Ixodes hexagonus

Ixodes hexagonus

Systematics
Over trunk : Molting animals (Ecdysozoa)
Trunk : Arthropod (arthropoda)
Sub-stem : Jawbearers (Chelicerata)
Class : Arachnids (arachnida)
Subclass : Mites (acari)
Superordinate : Parasitiformes
Scientific name
Parasitiformes
Reuter , 1909

The Parasitiformes or Anactinotrichida are a superordinate order of the mites (Acari). They include many known parasitic mites and ticks , mostly ectoparasitic bloodsuckers, but also endoparasitic species.

features

Parasitiformes have one to four pairs of dorsolateral (towards the back, to the side) or ventrolateral (towards the abdomen, to the side) stigmata behind the second coxae . The coxes are free and usually posable. On the tarsi of the legs II to IV there is a soft area (peripodomeric fissure) which is connected to the fissure sense organs , on the tarsi of the legs I there are dorsally dense tufts of rod-shaped subdistal (towards the abdomen, away from the center of the body) setae (solenidia ). The subcapitulum is formed by the fused coxa of the pedipalps. Trichobothria on the prodorsum are absent.

Habitat and way of life

Almost all Parasitiformes are terrestrial species, only a few genera of the Ascidae live exclusively on moist plants and detritus as well as on the surface of the water at the edge of freshwater habitats . Many species are parasitic, predatory and live in litter , rotting wood and house dust . Some species also feed on mushrooms and pollen.

Systematics

The superordinate order is divided into four orders, there are over 15,000 described species, the total number of species is estimated at 100,000 to 200,000:

Research history

Reuter wrote in his work On the Morphology and Ontogeny of the Acarids of Gamasiformes. In his classification in tabular form in the Draft of a New System of the Acarid Order section , he named Parasitiformes in brackets and noted that the generic name Gamasus has been replaced by Parasitus "recently" out of priority . He regretted the change, since the genus also includes non-parasitic species, but did not rule out changes to other systematic categories and therefore gave double names.

Individual evidence

  1. ↑ Gerhard Piekarski: Textbook of Parasitology with special consideration of the parasites of humans. Springer, 1954, ISBN 978-3540018384 , pp. 475-476.
  2. ↑ a b c Manjit Singh Dhooria: Fundamentals of Applied Acarology. Springer, 2016, ISBN 978-9811015922 , p. 64.
  3. ↑ David Evans Walter, Heather C. Proctor: Mites: Ecology, Evolution & Behavior: Life at a Microscale. Springer, 2013, ISBN 978-9400771635 , p. 40.
  4. ↑ James H. Thorp, Alan P. Covich: Ecology and Classification of North American Freshwater Invertebrates. Academic Press, 2009, ISBN 978-0123748553 , p. 583.
  5. ↑ Gerald W. Krantz, David E. Walter (Eds.): A Manual of Acarology. 3rd edition. Texas Tech University Press, Lubbock TX 2009, ISBN 978-0-89672-620-8 .
  6. ↑ Enzio Reuter: On the morphology and ontogeny of the acarids: With special consideration of Pediculopsis Graminum (E. Reut). Acta Societatis Scientiarum Fennicae TOM. XXXVI. No. 4. ( online )

Web links

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