Hygrobatidae

Holotype of Notohygrobates kathrynae, copyright Museum of New Zealand Te Papa Tongarewa.


Belongs within: Neohydrachnidia.
Contains: Atractides, Diamphidaxona, Hygrobates, Atractidella, Australiobates, Brevaturus, Corticacarus, Dubiobates, Hygrobatella.

The Hygrobatidae are a diverse family of water mites, some of which are among the dominant water mites in flowing waters in the Northern Hemisphere. Larvae, where known, are parasites of Chironomidae (Walter et al. 2009).

Characters (from Walter et al. 2009): Adults usually soft-bodied, though a few scattered dorsal or ventral platelets may be present; if complete dorsal and ventral shields present (usually only in male), then with downturned seta on tibia I; venter with suture lines between coxal plates II-III complete; pair of glandularia present on coxal plates IV. Larvae with cheliceral bases fused; coxal plates I-III on each side all fused; one pair of urstigmata borne distally between coxal plates I-II; legs with five movable segments.

<==Hygrobatidae
    |--Rhynchaturinae RFF05
    |    |--Rhynchaturus Besch 1964 RFF05
    |    |    |--R. beschi Cook 1988 RFF05
    |    |    |--R. cautinensis Cook 1988 RFF05
    |    |    |--R. circularis Cook 1988 RFF05
    |    |    |--R. hexaporus Besch 1964 RFF05
    |    |    |--R. octoporus Schwoerbel 1986 RFF05
    |    |    |--R. proyectus Cook 1988 RFF05
    |    |    `--R. tricornis Cook 1988 RFF05
    |    |--Andesobates Smit 2002 RFF05
    |    |    `--A. longipalpis Smit 2002 RFF05
    |    `--Szalayella Lundblad 1953 RFF05
    |         |--S. incisa Lundblad 1953 RFF05
    |         `--S. lundbladi Cook 1980 RFF05
    `--Hygrobatinae S86
         |--Atractides S86
         |--Schizobates Thor 1927 S86
         |    |--S. clanopus Cook 1988 RFF05
         |    |--S. critus Cook 1988 RFF05
         |    |--S. disjunctus (Walter 1927) S86
         |    `--S. similis Cook 1988 RFF05
         |--Zelandobates Hopkins 1966 S86
         |    `--Z. imamurai Schwoerbel 1984 S86
         |--Aciculacarus Cook 1983 S86
         |    `--A. amilis Cook 1983 S86
         |--Hopkinsobates Cook 1983 S86
         |    `--H. suzannae Cook 1983 S86
         |--Notohygrobates Cook 1983 S86
         |    `--N. kathrynae Cook 1983 S86
         |--Camposea Schwoerbel 1986 S86
         |    `--C. phreaticola Schwoerbel 1986 S86
         |--Diamphidaxona S86
         |--Hygrobates S86
         |--Actinacarus Lundblad 1953 RFF05
         |    |--A. affinis Lundblad 1953 RFF05
         |    `--A. cardioporus Lundblad 1953 RFF05
         |--Aspidiobates Lundblad 1941 RFF05
         |    |--A. geometricus G01
         |    |--A. harveyi Cook 1988 RFF05
         |    `--A. scutatus G01
         |--Atractidella RFF05
         |--Australiobatella Lundblad 1953 RFF05
         |    `--A. vietsi Lundblad 1953 RFF05
         |--Australiobates RFF05
         |--Brevaturus RFF05
         |--Callumobates Cook 1988 RFF05
         |    `--C. kurtvietsi Cook 1988 RFF05
         |--Corticacarus RFF05
         |--Crenohygrobates Lundblad 1938 RFF05
         |    `--C. multiporus Lundblad 1938 RFF05
         |--Decussobates Cook 1988 RFF05
         |    |--D. angustus Cook 1988 RFF05
         |    `--D. planus Cook 1988 RFF05
         |--Dodecabates Viets 1926 RFF05
         |    `--D. dodecaporus (Nordenskiöld 1904) RFF05
         |--Dubiobates RFF05
         |--Eocorticacarus Besch 1964 RFF05
         |    `--E. siolii Besch 1964 RFF05
         |--Hygrobatella RFF05
         |--Kyphohygrobatella Lundblad 1936 RFF05
         |    `--K. serratipalpis Lundblad 19346 RFF05
         |--Kyphohygrobates Viets 1935 RFF05
         |    `--K. verrucifer (Daday 1905) RFF05
         |--Mapuchacarus Besch 1964 RFF05
         |    `--M. condiscipulorum Besch 1964 RFF05
         |--Megapella Lundblad 1936 RFF05
         |    |--M. flabellum (Lundblad 1941) RFF05
         |    `--M. longimaxillaris Lundblad 1936 RFF05
         |--Motasia Lundblad 1953 RFF05
         |    `--M. placoderma Lundblad 1953 RFF05
         |--Neocorticacarus Lundblad 1953 RFF05
         |    `--N. validipalpis Lundblad 1953 RFF05
         |--Osornobates Cook 1988 RFF05
         |    `--O. gennadus Cook 1988 RFF05
         |--Paraschizobates Lundblad 1937 RFF05
         |    |--P. columbianus (Lundblad 1953) RFF05
         |    `--P. megapoides Lundblad 1937 RFF05
         |--Polyhygrobatella Lundblad 1953 RFF05
         |    `--P. polypora (Lundblad 1953) RFF05
         |--Stylohygrobates Viets 1935 RFF05
         |    `--S. longipalpis Viets 1935 RFF05
         |--Subcorticacarus Lundblad 1937 RFF05
         |    |--S. digitatus Lundblad 1937 RFF05
         |    `--S. trispinosus Lundblad 1942 RFF05
         |--Tetrahygrobatella Lundblad 1953 RFF05
         |    |--T. argentinensis Cook 1980 RFF05
         |    |--T. bovata Cook 1980 RFF05
         |    |--T. chilensis (Besch 1964) RFF05
         |    |--T. dictyoderma (Lundblad 1953) RFF05
         |    `--T. longipalpis Cook 1980 RFF05
         |--Thoracohygrobates Lundblad 1936 RFF05
         |    `--T. cancellatus Lundblad 1936 RFF05
         `--Zabobates Cook 1988 RFF05
              |--Z. alphus Cook 1988 RFF05
              |--Z. facetus Cook 1988 RFF05
              `--Z. gledhilli Cook 1988 RFF05

Hygrobatidae incertae sedis:
  Caenobates acheronius G01
  Coaustraliobates longipalpis G01
  Dropursa boultoni G01
  Gondwanabates G01
  Rhynchaustrobates G01
  Kallimobates G01
    |--K. australicus G01
    `--K. vietsi G01
  Procorticacarus G01
    |--P. angulicoxalis G01
    |--P. hirsutus G01
    `--P. togalus G01
  Dockovdia cookarum WL09

*Type species of generic name indicated

REFERENCES

[G01] Growns, J. E. 2001. Aquatic mites as bioindicators, with an Australian example. In Acarology: Proceedings of the 10th International Congress (R. B. Halliday, D. E. Walter, H. C. Proctor, R. A. Norton & M. J. Colloff, eds) pp. 136-142. CSIRO Publishing: Melbourne.

[RFF05] Rosso de Ferradás, B. & H. R. Fernández. 2005. Elenco y biogeografía de los ácaros acuáticos (Acari, Parasitengona, Hydrachnidia) de Sudamérica. Graellsia 61 (2): 181-224.

[S86] Schwoerbel, J. 1986. Acari: “Hydrachnellae”. In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 652-696. E. J. Brill / Dr. W. Backhuys: Leiden.

[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, pp. 233-420. Texas Tech University Press.

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