Mesostigmata

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Taxonomy

updated 2025

Diagnostic characters

• Uropodoids with flattened, adjacent coxae I but without pedofossae
• Tarsus I with claws
• Cheliceral node present
• Genital shield as wide as long
• Hypostomal setae h1–3 smooth, acicular; pc short and barbed.
• Peritreme usually with post-stigmatic extension
• Dorsal shield typically strongly reticulate or punctate
• Fixed digit of chelicerae with well developed anterior extension

Similar taxa

Lower uropodines typically have well separated coxae I and large, rectangular tritosternal bases; most higher uropodines have well developed pedofossae (fovae pedales).

References

• Ainscough 1981Ainscough 1981:
  Ainscough BD. 1981. Uropodine studies. I. Suprageneric classification in the cohort Uropodina Kramer, 1882 (Acari: Mesostigmata). International Journal of Acarology 7: 47–56.
• Athias 1976Athias 1976:
  Athias F. 1976. Observations morphologiques sur Polyaspis patavinus Berlese 1881 (Acariens: Uropodides). 2. Morphologie et chètotaxie des appendices au cours du dèveloppement postembryonnaire. Acarologia 18: 194–216.
• Athias-Binche and Bloszyk 1988Athias-Binche and Bloszyk 1988:
  Athias-Binche F, Bloszyk J. 1988. Australian Uropodina (Acari: Anactinotrichida). I. Australocilliba gen. n. (Cillibidae). Journal of the Australian Entomological Society 27: 1–8.
• Athias-Binche and Evans 1981Athias-Binche and Evans 1981:
  Athias-Binche F, Evans GO. 1981. Observations on the genus Protodinychus Evans, 1957 (Acari: Mesostigmata) with descriptions of the male and phoretic deuteronymph. Proceedings of the Royal Irish Academy (Section B) 81B: 25–36.
• Bloszyk and Halliday 1995Bloszyk and Halliday 1995:
  Bloszyk J, Halliday RB. 1995. A new species of Dinychus Kramer from Tasmania (Acarina: Dinychidae). Journal of the Australian Entomological Society 34: 187–191.
• Evans and Till 1979Evans and Till 1979:
  Evans EO, Till WM. 1979. Mesostigmatic mites of Britain and Ireland (Chelicerata: Acari-Parasitiformes): An introduction to their external morphology and classification. Transactions of the Zoological Society of London 35 (2): 145–270.
• Gilyarov and Bregatova 1977Gilyarov and Bregatova 1977:
  Gilyarov MS, Bregatova NG, eds. 1977. Handbook for the identification of soil-inhabiting mites, Mesostigmata. Zoological Institute of the Academy of Sciences, Petrograd.
• Johnston 1961Johnston 1961:
  Johnston DE. 1961. A review of the lower uropodid mites (former Thinozerconoidea, Protodinychoidea and Trachytoidea) with notes on the classification of the Uropodina (Acarina). Acarologia 3: 522–545.
• Karg 1989aKarg 1989a:
  Karg W. 1989a. Acari (Acarina), Milben Unterordnung Parasitiformes (Anactinotrichaeta) Uropodina Kramer, Schildkrötenmilben. Die Tierwelt Deutschlands 67: 1–203.
• Krantz and Ainscough 1990Krantz and Ainscough 1990:
  Krantz GW, Ainscough B. 1990. Mesostigmata. pp. 583–665. In: Dindal DL, ed. Soil biology guide. John Wiley & Sons, Brisbane.
• Wisniewski and Hirschmann 1993Wisniewski and Hirschmann 1993:
  Wisniewski J, Hirschmann W. 1993. Gangsystematik der Parasitiformes. Teil 548. Katalog der Ganggattungen, Untergattungen, Gruppen und Arten die Uropodiden der Erde. Acarologie, Schriftenreihe für Vergleichende Milbenkunde 40: 1–220.
• Womersley 1959bWomersley 1959b:
  Womersley H. 1959b. A new species of Urodiscella (Acarina, Uropodidae) from Australia. Records of the South Australian Museum 13: 349–353.