A contribution to the knowledge of Belytinae (Hymenoptera: Diapriidae) in Hyrcanian forests, with the first record of five genera and species from Iran

A faunistic survey of the subfamily Belytinae (Hymenoptera: Diaprioidea, Diapriidae) was carried out in northern Iran during 2010-2018. Based on the specimens collected from Golestan, Guilan, and Mazandarean provinces, five genera Diphora Foerster, 1856, Acanosema Kieffer, 1908, Acanopsilus Kieffer, 1908; Psilomma Foerster, 1856 and Synacra Foerster, 1856, are recorded for the first time from Iran. Each genus is represented by one newly recorded species. Diagnostic characters of the newly recorded taxa are provided along with illustrations. A key to the genera of the subfamily Belytinae from Iran is presented.