Additions to the Knowledge of the Flat Wasps Fauna of Türkiye (Hymenoptera, Bethylidae)

To detect the natural enemies of Scolytus rugulosus (Muller, 1818) (Coleoptera: Curculionidae: Scolytinae), which is harmful to cherry trees, parasitoid wasp specimens were collected during field studies in the Kemalpaşa district of Izmir, Türkiye, between 1993 and 1995. This study evaluated 89 bethylid specimens collected in field studies. The wasps were collected by beating branches of cherry trees and reared on S. rugulosus larvae. All collected specimens were identified, and as a result, two previously unreported Bethylidae species, Bethylus mandibularis (Kieffer, 1904) and Goniozus claripennis (Förster, 1851) (Hymenoptera: Bethylidae), were recorded from Türkiye. The newly recorded species are briefly described and illustrated. Additional records are provided for Cephalonomia hypobori Kieffer, 1919, already reported from Türkiye. The number of species now known from the country has increased from 14 to 16, belonging to 14 genera and four subfamilies.