Three stations selected for altitude and habitat types within the Kasnak Oak Forest Nature Reserve (Isparta, Turkey) were studied comparatively for species composition, richness and abundance of the Hymenoptera families Ampulicidae, Crabronidae, and Sphecidae. A total of 56 species was recorded, 1 from the family Ampulicidae, 43 from the family Crabronidae and 12 from the family Sphecidae. 8 species are new records for Turkey.