Oppiella Jacot, 1937
Oppiella nova (Oudemans, 1902)
Material examined: Gobernador Costa: bare soil (2), Junellia patagonica (1), Alto Rio Senguer: Stipa sp. (1). The species was only recorded under shrub steppe.
Records in Argentina: Buenos Aires, Chubut and Río Negro (Fredes 2018).
Comments: the distribution of species is cosmopolitan (Subías 2004, update 2018).