Stygomomonia sp., from Water Mites of North America.

Belongs within: Neohydrachnidia.

The Momoniidae are a group of more or less well-sclerotised, interstitial or hyporheic water mites whose larvae, where known, are parasites of Trichoptera. Members of the type genus Momonia are found in streams and lakes in southern Eurasia and North America (Walter et al. 2009).

Characters (from Walter et al. 2009): Adults with tibia I much longer than tarsus; claw of leg I flexing proximad to oppose dorsal surface of tarsus. Larva with idiosoma moderately flattened dorsoventrally; gnathosoma projecting beyond anterior edge of dorsal plate, entirely exposed in dorsal view; dorsal plate bearing four pairs of setae (verticils and scapulars), with setae c1 on lateral membranous integument; setae c2 and d2 thick and long relative to other hysterosomatic setae; excretory pore setae ps1 and ps2 absent, represented by their alveoli on excretory pore plate; legs with five movable segments; leg genua with setae Ge5 borne on tubercles; tibia I bearing eight setae (+2ϕ), including Ti11; leg tarsi lacking setae Tal4, bearing paired claws.

    |--Cladomomonia Orghidan & Gruia 1980S86 [CladomomoniinaeWL09]
    |    `--C. mirifica Orghidan & Gruia 1980S86
    |    |--Momonisia Petrova 1974S86
    |    |    `--M. phreatica Petrova 1974S86
    |    |--Partidomonia Cook 1983S86
    |    |    `--P. polyplacophora Cook 1983S86
    |    |--Momonides Lundblad 1941S86
    |    |    `--M. lundbladi Angelier 1951S86
    |    |--Momonia Halbert 1906S86
    |    |    |  i. s.: M. campylotibiaWL09
    |    |    `--M. (Kondia Sokolow 1926)S86
    |    |         `--M. (K.) hopkinsi Schwoerbel 1984S86
    |    `--Neomomonia Cook 1968S86
    |         |--N. benova Cook 1983S86
    |         |--N. hopkinsi Cook 1983S86
    |         |--N. paramecia Cook 1983S86
    |         |--N. rotunda Schwoerbel 1984S86
    |         `--N. torquipes (Hopkins 1966)S86
         |--Xenomomonia Orghidan 1975S86
         |    `--X. subcentrata Orghidan 1977S86
         `--Stygomomonia Szalay 1943S86
              |  i. s.: S. mitchelliWL09
              |         S. torquipes Hopkins 1966SL71
              |--S. (Stygomomonia)S86
              |    |--S. (S.) hachiojensis Imamura 1959S86
              |    |--S. (S.) latipes Szalay 1943S86
              |    |--S. (S.) neomexicana Cook 1968S86
              |    |--S. (S.) occidentalis Cook 1968S86
              |    |--S. (S.) ozarkensis Cook 1968S86
              |    |--S. (S.) pallida Cook 1968S86
              |    |--S. (S.) riparia Habeeb 1957S86
              |    |--S. (S.) rotunda Imamura 1956S86
              |    `--S. (S.) separata Cook 1968S86
              `--S. (Allomomonia Cook 1968)S86
                   |--S. (A.) kantoensis Imamura 1959S86
                   `--S. (A.) moodyi Mitchell 1959S86
Momoniidae incertae sedis:
  Momoniella Viets 1929RFF05
    |--M. australica Cook 1986H98
    |--M. parva Cook 1986H98
    `--M. sudamericana Cook 1988RFF05
  Notomomonia Cook 1988RFF05
    |--N. alza Cook 1988RFF05
    |--N. anchista Cook 1988RFF05
    `--N. crassipes Cook 1988RFF05
  Cyclomomonia andrewsiWL09
  Partidomomonia Cook 1983H98
    |--P. blythi Harvey 1990H98
    `--P. cabanandra Harvey 1990H98

*Type species of generic name indicated


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

[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: Botosaneanu, L. (ed.) Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) pp. 652–696. E. J. Brill/Dr W. Backhuys: Leiden.

[SL71] Spain, A. V., & M. Luxton. 1971. Catalog and bibliography of the Acari of the New Zealand subregion. Pacific Insects Monograph 25: 179–226.

[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.

Leave a comment

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