-Exeristes roborator (Fabricius, 1793) is usually known as the parasitoid of lepidopteran pupae, but was also recorded as the parasitoid of diff erent Cynipidae species in the southern parts of Europe and parts of Middle East. In samples of Diplolepis rosae (Linnaeus, 1758) and D. mayri (Schlechtendal, 1876) galls collected in the eastern Carpathian Basin aft er 2010 E. roborator appeared in large numbers compared to those collected before 2010, when the species was not present in the gall communities. Here we report the diff erential presence of Exeristes roborator in the two rose gall species, which points out the host shift of the ichneumonid parasitoid spreading towards north. With 3 fi gures.

We present an annotated check-list of Pteromalidae (Hymenoptera: Chalcidoidea) from Sakartvelo (the Republic of Georgia), updating the available information of these parasitoids. We identified 22 species belonging to 17 genera from 9 subfamilies – Asaphinae, Cero­cephalinae, Cleonyminae, Miscogastrinae, Pteromalinae and Spalangiinae. One species, Psilocera kartveli László et Kelemen sp. n., is described as a new for science, and the remaining 21 species are new records for the fauna of Georgia, from which 10 species are new for the Caucasus. All the 17 genera are recorded for the first time for the Georgian fauna. For each species, their biology and distribution are presented.