Review of the genus Mesopolobus Westwood (Hymenoptera: Pteromalidae) in Iran with a new record

Prior to this study eight species of Mesopolobus Westwood were recognized from Iran. In this study, one species namely M. aspilus (Walker) is newly recorded. An illustration of the external features of this species is provided. All known species from Iran were reviewed, the key to species and their geographical distribution in Iran is provided.