A new species, Adamystis saboorii sp. nov. (Trombidiformes: Prostigmata: Adamystidae) is described based on adult females from Maragheh city, East Azerbaijan Province, Iran. The new species can be distinguished from other species by the following features: three pairs of adoral setae; chelicera with two setae; idiosoma with reticulated dorsal shield; lateral lens-like structures absent, three pairs of aggenital setae (ag1–3) on divided coxisternal shield and two setae (ag_4–5) on a large reticulated shield. Also, an identification key to known species of Adamystis is updated.