A new species Blaps kasatkini sp. nov. is described from Western Iran (Kermanshah Province). The species belongs to the 6th group of the 2nd section sensu Seidlitz and most similar to Transcaucasian species Blaps araxicola Seidlitz, 1893 and Blaps pudica Ballion, 1888 from which it differs by the structure of temples, sculpture of prosternum, presence of hair brush between male abdominal ventrites 1 and 2 (the difference only from B. pudica), glabrous abdominal ventrites (the difference only from B. araxicola), structure of ovipositor, female genital tubes and presence of elytral mucron in female. New material of the little known species in the 6th group of the 2nd section sensu Seidlitz Blaps pudica, B. araxicola and Iranian species B. glazunovi Semenov Tian-Shansky et Bogatchev, 1936 is given. Blaps pudica is recorded for Armenia for the first time. Lectotype of B. glazunovi is designated.