Bryobia rubrioculus (Scheuten, 1857), is one of the most important pests of spider mites in Hamedan province, western Iran. This species found on aerial part of deciduous and coniferous trees. All mobile stages (larvae, protonymph, deutonymph and adult female) of B. rubrioculus were reared on sweet cherry leaf in germinator under controlled condition and redescription in the present study. Furthermore, a key to Iranian species of the genus Bryobia is presented.
