Belongs within: Oppioidea.
Medioppia is a genus of oppiid oribatid mites recorded from most parts of the world except the Oriental region and Antarctica (Subías 2004).
Characters (from Balogh & Balogh 1992): Prodorsum with lamellar costulae absent; sensillus pectinate or fusiform and ciliate. Anterior margin of notogaster with posteriorly directed cristae; notogaster with ten pairs of setae, setae c2 well developed. Genital plates usually with six pairs of setae. Setae ad1 postanal; fissure iad paraanal.
<==Medioppia Subías & Mínguez 1985 [incl. Ctenoppiella Gordeeva & Karppinen 1988, Kunoppia Mahunka 1987]S04 |--*M. media (Mihelčič 1956) [=Oppia media; incl. M. templadoi Pérez-Íñigo 1988]S04 |--M. beskidyensis Niemi & Skubala 1993S04 |--M. centrodentata Gordeeva & Niemi 1990S04 |--M. gomozovae (Gordeeva & Karppinen 1988)S04 [=*Ctenoppiella gomozovaeBB92] |--M. heterotricha Ivan & Vasiliu 1997S04 |--M. hygrophila (Mahunka 1987) [=Kunoppia hygrophila]S04 |--M. ‘lamellata’ (Golosova & Karppinen 1985) [=Oppia lamellata non Oppia deficiens lamellata Wallwork 1961]S04 |--M. loksai (Schalk 1966) [=Oppia loksai]S04 |--M. melisi (Valle 1949) [=Oppia melisi]S04 |--M. minidentata Subías & Rodríguez 1988S04 |--M. minimedia Arillo & Subías 1990S04 |--M. oblongata (Gordeeva & Melamud 1991) [=Ctenoppiella oblongata]S04 |--M. obsoleta (Paoli 1908)S04 (see below for synonymy) |--M. ordunensis (Iturrondobeitia & Saloña 1988)S04 (see below for synonymy) |--M. parapectinata (Rjabinin 1987) [=Oppia parapectinata]S04 |--M. parva (Lombardini 1952) (n. d.) [=Oppia parva]S04 |--M. pinsapi Arillo & Subías 1996S04 |--M. plumata (Gordeeva & Karppinen 1988) [=Ctenoppiella plumata]S04 |--M. producta Iturrondobeitia & Arillo 1997S04 |--M. samaina Mahunka 2001S04 |--M. subpectinata (Oudemans 1900) (see below for synonymy)S04 |--M. tridentata Subías & Minguez 1985S04 |--M. trilobata Khanbekjan & Gordeeva 1991S04 |--M. truncata Iturrondobeitia & Saloña 1988S04 |--M. tuberculata (Bulanova-Zachvatkina 1964) [=Oppia tuberculata]S04 `--M. vera (Mihelčič 1956) [=Oppia vera]S04
Medioppia obsoleta (Paoli 1908)S04 [=Dameosoma fallax obsoletumS04; incl. D. vitrinum Hull 1914S04, Autogneta vitrinaL87, Quadrioppia vitrinaL87]
Medioppia ordunensis (Iturrondobeitia & Saloña 1988)S04 [=Lauroppia ordunensisS04; incl. Oppiella acutirostris Pérez-Íñigo 1990S04, Medioppia acutirostrisIA97]
Medioppia subpectinata (Oudemans 1900) [=Eremaeus subpectinatus; incl. Dameosoma subpectinatum aberratum Thamdrup 1932, Oppia bulanovae Kulijev 1962, O. globosa Mihelčič 1956, O. paoliana Cooreman 1941, O. zachvatkini Kulijev 1962]S04
*Type species of generic name indicated
References
[BB92] Balogh, J., & P. Balogh. 1992. The Oribatid Mites Genera of the World vol. 2. Plates. Hungarian Natural History Museum: Budapest.
[IA97] Iturrondobeitia, J. C., & A. Arillo. 1997. Medioppia producta: a new oppiid mite (Acarida, Oribatida, Oppiidae) from the Basque Country (northern Spain). Acarologia 38 (2): 193–197.
[L87] Luxton, M. 1987. The oribatid mites (Acari: Cryptostigmata) of J. E. Hull. Journal of Natural History 21: 1273–1291.
[S04] Subías, L. S. 2004. Listado sistemático, sinonímico y biogeográfico de los ácaros oribátidos (Acariformes, Oribatida) del mundo (1758–2002). Graellsia 60 (número extraordinario): 3–305.