Aphelacarus Grandjean, 1932

Aphelacarus acarinus (Berlese, 1910)

Material examined: Esquel: bare soil (8), Adesmia campestris (3), Stipa sp. (3), Mulinum spinosum (17), Chuquiraga aurea (3), Senecio filaginoides (1), Gobernador Costa: bare soil (8), Junellia patagonica (22), Mulinum spinosum (15), Stipa sp. (11), Alto Rio Senguer: bare soil (12), Senecio filaginoides (18), Mulinum spinosum (22), Stipa sp. (1), Junellia patagonica (6), Berberis heterophylla (6).The species was found in grass steppe and shrub steppe.

Records in Argentina: Buenos Aires (Fredes 2018).

Comments: the distribution of species is semi-cosmopolitan (Holartic, Ethiopia and Neotropical) (Subías 2004, update 2018). First record for the province of Chubut.