Holothyrida

The Holothyrida are a small order of mites in the superorder Parasitiformes. No fossils are known. With body lengths of more than 2 mm (332 in) 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]

Holothyrida
Allothyridae.jpg
Allothyridae
van der Hammen, 1972
Scientific classification
Kingdom:
Phylum:
Class:
Subclass:
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Order:
Holothyrida
Families

See text.

Diversity
10 genera, > 25 species

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]

SystematicsEdit

AllothyridaeEdit

Allothyridae van der Hammen, 1972Australia

HolothyridaeEdit

Holothyridae Thorell, 1882

NeothyridaeEdit

Neothyridae Lehtinen, 1981

FootnotesEdit

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

ReferencesEdit

  • 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