Trombidiformes

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Trombidiformes
Trombidium holosericeum

Trombidium holosericeum

Systematics
Trunk : Arthropod (arthropoda)
Class : Arachnids (arachnida)
Subclass : Mites (acari)
Superordinate : Acariformes
Order : Trombidiformes
Scientific name
Trombidiformes
Reuter , 1909

Trombidiformes is an order of mites that includes more than 100 families with more than 22,000 species described.

It is divided into the sub-orders Sphaerolichida and Prostigmata . As a cosmopolitan , they are spread around the world.

features

Trombidiformes are very small (0.08 mm) to very large (16 mm) mites . A characteristic of the order is the position of the respiratory openings ( stigmas ) in the front part of the body in the area of ​​the gnathosoma . The palpi consist of two to five segments, apotles are absent. The chelicerae are two-part. There is no heart. As Exkretionsorgan serves Uroporus , an anal opening is absent.

Way of life

Many of the species belonging to the order are free-living and feed predatory or fungivorous, while others live parasitically on vertebrates and arthropods . Many live phoretically on insects, often as adult mites or as a specialized female form ( phoretomorphs ). As far as is known, all Trombidiformes consume liquid food, although fungal spores are sometimes found in the intestines of Lordalychidae .

Balaustium sp. , a representative of the Trombidiformes

meaning

All important mites, the plant parasites, as well as numerous mites that are important parasites of humans, farm animals, domestic and wild animals as well as insects, belong to the order. Some are pests of mushroom growing . Some genera in Central Europe produce ectoparasites from dogs and cats, the tracheal mite ( Acarapis woodi ) is a bee parasite. Some of the species are pathogens, parasites or carriers of rickettsiae .

Individual evidence

  1. ^ David Evans Walter: Hidden in Plain Sight: Mites in the Canopy. In: Margaret D. Lowman, H. Bruce Rinker (Eds.): Forest Canopies. 2nd edition. Elsevier, Amsterdam et al. 2004, ISBN 0-12-457553-6 , pp. 224-241.
  2. a b c d e David Evans Walter: Invasive Mite Identification: Tools for Quarantine and Plant Protection: Trombidiformes
  3. a b c Gerhard Piekarski: Textbook of Parasitology. Springer, 1954, p. 503.
  4. Peter Deplazes, Johannes Eckert, Georg von Samson-Himmelstjerna, Horst Zahner: Textbook of Parasitology for Veterinary Medicine. Enke, 2012, ISBN 978-3830411352 , p. 408.

Web links

Commons : Trombidiformes  - collection of images, videos and audio files