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van der Hammen, 1972
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Subclass: Acari
Superorder: Parasitiformes
Order: Holothyrida

See text.

10 genera, > 25 species

The Holothyrida are a small order of mites in the superorder Parasitiformes. No fossils are known. With body lengths of more than 2 mm they are relatively large mites, with a heavily sclerotized body. They mainly feed on the body fluids of dead arthropods. This was possibly the common way of feeding for ticks before they adapted for feeding on the blood of live animals.[1]

Although only 25 species are currently described, many others have been collected.

The order has a Gondwanan distribution. They are likely the sister group to Ixodida (ticks).[2]



Allothyridae van der Hammen, 1972Australia


Holothyridae Thorell, 1882


Neothyridae Lehtinen, 1981


  1. ^ Walter & Proctor 1998
  2. ^ Dobson & Barker 1999


  • Joel Hallan's Biology Catalog: Holothyrida
  • Bruce Halliday: Order Holothyrida
  • Lehtinen, Pekka T. (1995): Revision of the old world Holothyridae (Arachnida : Anactinotrichida : Holothyrina). Invertebrate Taxonomy 9(4): 767-826. doi:10.1071/IT9950767
  • Walter, D. E. & Proctor, H. C. (1998): Feeding behaviour and phylogeny: observations on early derivative Acari. Exp. Appl. Acarol 22: 39-50.
  • Dobson, S. J. & Barker, S. C. (1999): Phylogeny of the hard ticks (Ixodidae) inferred from 18S rRNA indicates that the genus Aponomma is paraphyletic. Mol. Phylogenet. Evol 11: 288-295 PMID 10191073