Review of Syzeuctus Forster, 1869 (Hymenoptera: Ichneumonidae: Banchinae) in Iran, with description of a new species

The subfamily Banchinae Wesmael, 1845, one of the large-sized groups of wasps belonging to the family Ichneumonidae, are widely distributed parasitoids which are exclusively koinobiont endoparasitoids of Lepidoptera (Quicke 2015). According to recent molecular and morphological analyses (Quicke et al. 2009), the Banchinae are divided into four tribes; Banchini Wesmael, 1845; Glyptini Cushman & Rohwer, 1920; Atrophini Seyrig, 1932 and Townesionini Kasyparyan, 1994, of which the Atrophini with 41 genera and 976 species is the largest group (Yu et The genus Syzeuctus Forster, 1869 has a worldwide distribution, and with 143 described species, is the second parasitoids of various graminaceous stem borers (Quicke 2015) and are found in all biogeographic ecozones, but the current knowledge is strongly biased to Afrotropical and Palaearctic regions with 47 and 52 species, respectively. As The occurrence of the genus Syzeuctus in Iran was recently established (Bahremand et al. 2017), and repre