This study was carried out to determine the species of the subfamily Agathidinae (Hymenoptera: Braconidae) in the Marmara region of Turkey. Samples were collected from 47 localities between 1985 and 1997. A total of 16 species were determined. The results revealed that Agathis fulmeki Fischer and Bassus linguarius (Nees von Esenbeck) are new records for the Turkish fauna. Agathis malvacearum Latreille, A. lugubris (Foerster, 1862) and Baeognatha armeniaca Telenga are new records for the Marmara region. A. syngenesiae Nees von Esenbeck, A. umbellatarum Nees von Esenbeck, A. nigra Nees von Esenbeck, A. breviseta Nees von Esenbeck, A. assimilis Kokujev, A. rufipalpis Nees von Esenbeck, A. fuscipennis (Zetterstedt), A. melpomene Nixon, A. anglica Marshall, Bassus tumidulus (Nees von Esenbeck), and Disophrys caesa (Klug) were already known in the Marmara region. A. syngenesiae Nees von Esenbeck, A. umbellatarum Nees von Esenbeck, and A. anglica Marshall are common species in the Palearctic region.

This study was carried out to determine the species of the subfamily Agathidinae (Hymenoptera: Braconidae) in the Marmara region of Turkey. Samples were collected from 47 localities between 1985 and 1997. A total of 16 species were determined. The results revealed that Agathis fulmeki Fischer and Bassus linguarius (Nees von Esenbeck) are new records for the Turkish fauna. Agathis malvacearum Latreille, A. lugubris (Foerster, 1862) and Baeognatha armeniaca Telenga are new records for the Marmara region. A. syngenesiae Nees von Esenbeck, A. umbellatarum Nees von Esenbeck, A. nigra Nees von Esenbeck, A. breviseta Nees von Esenbeck, A. assimilis Kokujev, A. rufipalpis Nees von Esenbeck, A. fuscipennis (Zetterstedt), A. melpomene Nixon, A. anglica Marshall, Bassus tumidulus (Nees von Esenbeck), and Disophrys caesa (Klug) were already known in the Marmara region. A. syngenesiae Nees von Esenbeck, A. umbellatarum Nees von Esenbeck, and A. anglica Marshall are common species in the Palearctic region.