Revision of the genus Syntretus Foerster (Hymenoptera: Braconidae: Euphorinae) from Europe

Abstract

The species of the genus Syntretus Foerster, 1862 (including Falcosyntretus Tobias, 1965, and Exosyntretrus Belokobylskij, 1998) (Braconidae: Euphorinae; Syntretini) from Europe are revised and keyed. The genera Falcosyntretus Tobias, 1965, Exosyntretus Belokobylskij, 1998, and Parasyntretus Belokobylskij, 1993, are synonymised with Syntretus Foerster, 1862, and the second one is provisionally used as a subgenus (stat. rev.). The subgenus Exosyntretrus is reported for the first time from Europe and two new species are included. In total twenty species of the genus Syntretus Foerster are recognised (plus one species only known from literature: Syntretus dzieduszykii Niezabitowski, 1910), of which ten are new: Syntretus breviradialis spec. nov., S. flevo spec. nov., S. fuscicoxis spec. nov., S. fuscivalvis spec. nov., S. minimus spec. nov., S. ocularis spec. nov., S. shawi spec. nov., S. stenochora spec. nov., S. taegeri spec. nov., and S