Male ologamasid, from here.

Belongs within: Parasitiformes.

The Ologamasidae are a family of predatory mites found worldwide, though most diverse in the Southern Hemisphere.

Characters (from Luxton 1986): Dorsum of adult with holonotal shield or two separate shields; peritrematal shield usually fused with exopodal IV shield, often also with ventro-anal shield.

<==Ologamasidae [Ologamasinae]
    |--Gamasiphoides L01
    |--Evanssellus L01
    |--Parasitiphis L86
    |--Litogamasus L86
    |--Hydrogamasus L86
    |--Rhodacaroides Willmann 1959 L86
    |    `--R. aegyptiacus Willmann 1959 L86
    |--Geogamasus Lee 1970 L86
    |    `--G. fibularis Karg 1976 L86
    |--Hydrogamasellus Hirschmann 1966 L86
    |    |--H. antennatus Karg 1976 L86
    |    `--H. racovitzai (Trouessart 1903) (see below for synonymy) L86
    `--Periseius Womersley 1961 L86
         |--P. brasiliensis Hirschmann 1966 L86
         |--P. nobskae (Haq 1965) [=Psammonsella nobskae] L86
         `--P. schusteri Hirschmann 1966 L86

Hydrogamasellus racovitzai (Trouessart 1903) [=Gamasus racovitzai, Cyrtolaelaps (Gamasellus) racovitza; incl. Zercon tuberculatus Tragardh 1907] L86

*Type species of generic name indicated


[L01] Lindquist, E. E. 2001. Poising for a new century: Diversification in acarology. 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. 17-34. CSIRO Publishing: Melbourne.

[L86] Luxton, M. 1986. Acari: Rhodacaridae Ologamasinae. In Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) (L. Botosaneanu, ed.) pp. 635-637. E. J. Brill / Dr. W. Backhuys: Leiden.

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