Momoniidae

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 (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.

<==Momoniidae
    |--Cladomomonia Orghidan & Gruia 1980 [Cladomomoniinae] S86
    |    `--C. mirifica Orghidan & Gruia 1980 S86
    |--Momoniinae S86
    |    |--Momonisia Petrova 1974 S86
    |    |    `--M. phreatica Petrova 1974 S86
    |    |--Partidomonia Cook 1983 S86
    |    |    `--P. polyplacophora Cook 1983 S86
    |    |--Momonides Lundblad 1941 S86
    |    |    `--M. lundbladi Angelier 1951 S86
    |    |--Momonia Halbert 1906 S86
    |    |    |  i. s.: M. campylotibia WL09
    |    |    `--M. (Kondia Sokolow 1926) S86
    |    |         `--M. (K.) hopkinsi Schwoerbel 1984 S86
    |    `--Neomomonia Cook 1968 S86
    |         |--N. benova Cook 1983 S86
    |         |--N. hopkinsi Cook 1983 S86
    |         |--N. paramecia Cook 1983 S86
    |         |--N. rotunda Schwoerbel 1984 S86
    |         `--N. torquipes (Hopkins 1966) S86
    `--Stygomomoniinae S86
         |--Xenomomonia Orghidan 1975 S86
         |    `--X. subcentrata Orghidan 1977 S86
         `--Stygomomonia Szalay 1943 S86
              |  i. s.: S. mitchelli WL09
              |--S. (Allomomonia Cook 1968) S86
              |    |--S. (A.) kantoensis Imamura 1959 S86
              |    `--S. (A.) moodyi Mitchell 1959 S86
              `--S. (Stygomomonia) S86
                   |--S. (S.) hachiojensis Imamura 1959 S86
                   |--S. (S.) latipes Szalay 1943 S86
                   |--S. (S.) neomexicana Cook 1968 S86
                   |--S. (S.) occidentalis Cook 1968 S86
                   |--S. (S.) ozarkensis Cook 1968 S86
                   |--S. (S.) pallida Cook 1968 S86
                   |--S. (S.) riparia Habeeb 1957 S86
                   |--S. (S.) rotunda Imamura 1956 S86
                   `--S. (S.) separata Cook 1968 S86

Momoniidae incertae sedis:
  Momoniella Viets 1929 RFF05
    |--M. australica Cook 1986 H98
    |--M. parva Cook 1986 H98
    `--M. sudamericana Cook 1988 RFF05
  Hesperomomonia EHH05
  Notomomonia Cook 1988 RFF05
    |--N. alza Cook 1988 RFF05
    |--N. anchista Cook 1988 RFF05
    `--N. crassipes Cook 1988 RFF05
  Cyclomomonia andrewsi WL09
  Partidomomonia Cook 1983 H98
    |--P. blythi Harvey 1990 H98
    `--P. cabanandra Harvey 1990 H98

*Type species of generic name indicated

REFERENCES

[EHH05] Eberhard, S. M., S. A. Halse & W. F. Humphreys. 2005. Stygofauna in the Pilbara region, north-west Western Australia: a review. Journal of the Royal Society of Western Australia 88 (4): 167–176.

[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.

[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 3^rd ed. pp. 233–420. Texas Tech University Press.