| abstract | A new mite species, Adamystis alvandicus sp. nov., is described and illustrated from female specimens collected from soil under Spiny Hawthorn trees, Crataegus aronia (L.) (Rosaceae), near Alvand Mountain in Hamedan province, Iran. The new species is distinguished by lacking lens like structures, having one pair of eyes, a smooth dorsal shield and coxae I–IV 2-3-3-2. All other Adamystis have three setae on coxisternae IV. |