Dorsum of female Adamystis yvesi, from Ueckermann (1989).

Belongs within: Prostigmata.
Contains: Caeculidae, Paratydeoidea, Anystidae, Teneriffiidae.

The Anystina are a diverse group of mostly predatory mites, members of which have the fixed cheliceral digits reduced and the movable digit often blade- or sickle-like. A well-developed palpal thumb-claw process is also often present.

Many members of the Anystina are associated with dry soils and litter. These include the Adamystidae, a group of medium-sized reddish mites with a sclerotised plate covering much of the dorsum. The Pomerantziidae are long-bodied mites known from deeper soil profiles in North America and Asia. They bear a single large shield on the prodorsum and a series of five shields on the hysterosoma (Walter et al. 2009).

The Anystoidea are soft-bodied mites, with at most only a weakly-developed prodorsal shield. Anystoids include the Pseudocheylidae, characterised by pad-like tarsal apoteles, produced on annulate stalks, reduced palptarsi, and the absence of genital papillae (Walter et al. 2009).

The Anystidae are a group of fast-moving, predatory mites that are usually reddish in coloration. They are divided between the subfamilies Anystinae and Erythracarinae, with members of the latter having flexible leg tarsi that are commonly divided into pseudosegments (Otto 2000). The Anystinae are mostly broader-bodied species with three claws on the palptibia (Walter et al. 2009).

<==Anystina [Anystae, Anystides]DPD16
    |  i. s.: Pomerantziidae [Pomerantzioidea]ZF11
    |           |--ApomerantziaWL09
    |           `--PomerantziaWL09
    |                |--P. charlesiWL09
    |                |--P. philippinaWL09
    |                `--P. subterraneaWL09
    |--Adamystidae [Adamystoidea]OW01
    |    |--Saxidrominae [Saxidromidae]FL10
    |    |    |--Saxidromus Coineau 1974U89
    |    |    |    |--*S. delamarei Coineau 1974U89
    |    |    |    |--S. anahoffmannae Lopez-Campos 1996FL10
    |    |    |    |--S. caribeus Palacios-Vargus & Prieto-Trueba 1995FL10
    |    |    |    `--S. knoepffleri Coineau 1974U89
    |    |    |--Bovidromus roussouwi Coineau et al. 2006FL10
    |    |    `--Rhinodromus lootsi Coineau et al. 2006FL10
    |    `--Adamystis Cunliffe 1957U89 [AdamystinaeFL10]
    |         |--*A. donnae Cunliffe 1957U89
    |         |--A. beckyanneae McDaniel & Bolen 1983U89
    |         |--A. buchelis Ueckermann 1989U89
    |         |--A. coineaui Rafalski 1982U89
    |         |--A. doumengei Coineau 1974U89
    |         |--A. fonsi Coineau 1974U89
    |         |--A. monomaculata Ueckermann 1989U89
    |         |--A. nudis Ueckermann 1989U89
    |         |--A. oculeusis Ueckermann 1989U89
    |         |--A. sarae Hunter & Crossley 1968U89
    |         |--A. sartorum Barilo 1987FL10
    |         |--A. thailandensis Fuangarworn & Lekprayoon 2010FL10
    |         |--A. trimaculata Ueckermann 1989U89
    |         `--A. yvesi Ueckermann 1989U89
               |--Pseudocheylidae [Pseudochelidae]ZF11
               |    |--Pseudocheylus Berlese 1888S76
               |    |    `--P. americanus (Ewing 1909) [=Cheyletiella americana]S76
               |    |--Neocheylus Trägårdh 1906H98
               |    |    |--N. americanusWL09
               |    |    |--N. collis Baker & Atyeo 1964H98
               |    |    `--N. nidicolusWL09
               |    `--Anoplocheylus Berlese 1910 [incl. Rhagina Womersley 1935]H98
               |         |--A. clavatus Baker & Atyeo 1964H98
               |         |--A. protea (Womersley 1935) [=Rhagina protea]H98
               |         |--A. tauricusWL09
               |         `--A. transiensWL09

*Type species of generic name indicated


[DPD16] Dabert, M., H. Proctor & J. Dabert. 2016. Higher-level molecular phylogeny of the water mites (Acariformes: Prostigmata: Parasitengonina: Hydrachnidiae). Molecular Phylogenetics and Evolution 101: 75–90.

[FL10] Fuangarworn, M., & C. Lekprayoon. 2010. Adamystis thailandensis sp. nov. (Acari: Prostigmata: Adamystidae), a new species of soil mites from Thailand with a key to world species of Adamystidae. Zootaxa 2649: 61–68.

[H98] Halliday, R. B. 1998. Mites of Australia: A checklist and bibliography. CSIRO Publishing: Collingwood.

[OW01] Otto, J. C., & K. J. Wilson. 2001. Assessment of the usefulness of ribosomal 18S and mitochondrial COI sequences in Prostigmata phylogeny. In: Halliday, R. B., D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff (eds) Acarology: Proceedings of the 10th International Congress pp. 100–109. CSIRO Publishing: Melbourne.

[S76] Shiba, M. 1976. Taxonomic investigation on free-living Prostigmata from the Malay Peninsula. Nature and Life in Southeast Asia 7: 83–229.

[U89] Ueckermann, E. A. 1989. A revision of the family Adamystidae Cunliffe (Acari: Prostigmata). Phytophylactica 21: 227–240.

[WL09] Walter, D. E., E. E. Lindquist, I. M. Smith, D. R. Cook & G. W. Krantz. 2009. Order Trombidiformes. In: Krantz, G. W., & D. E. Walter (eds) A Manual of Acarology 3rd ed. pp. 233–420. Texas Tech University Press.

[ZF11] Zhang, Z.-Q., Q.-H. Fan, V. Pesic, H. Smit, A. V. Bochkov, A. A. Khaustov, A. Baker, A. Wohltmann, T. Wen, J. W. Amrine, P. Beron, J. Lin, G. Gabryś & R. Husband. 2011. Order Trombidiformes Reuter, 1909. In: Zhang, Z.-Q. (ed.) Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness. Zootaxa 3148: 129–138.


  1. If you want to re-create a site of Caeculidae please be aware of a possible misspelling or unjustified emendation. In a lot of literature the spelling Allocaeculus spathulifer (Michael, 1890) occurs but a re-examination of the original description reveals the correct spelling “spatulifer”. In uncertain cases, do not hesitate to look for possible solutions to the problems in my database or to contact me personally. If you find any errors or incomplete information in my database that you can correct/fill, I would be grateful for your kind assistance.
    Karl-Heinz Schmidt

    1. Thank you for your very polite correction, Karl-Heinz; I note that I was myself one of the users of the misspelling. Which is very slack of me, as I do have a copy of the original description and should have noticed.

Leave a comment

Your email address will not be published. Required fields are marked *