An inventory of the pteromalid fauna of Syrdarya–Kyzylkum and Betpakdala–Moyynkum desert territories of southern Kazakhstan is presented for the first time. Thirty-four species in 23 genera are listed, and information on their hosts and distribution is provided. Mesopolobus auditor Dzhanokmen, 1975 is treated here as a subspecies Mesopolobus diffinis auditor Dzhanokmen, 1975, stat. rev. The subspecies is known so far only from the desert and semidesert areas of Kazakhstan and Central Asia.