Taxonomic Revision of Eastern Part of Western Palaearctic Cordulegaster Using Molecular Phylogeny and Morphology, with the Description of Two New Species (Odonata: Anisoptera: Cordulegastridae)

Taxonomy of the genus Cordulegaster Leach in Brewster, 1815 Eastern part Western Palaearctic is poorly resolved. A two-step approach was applied: sequences mitochondrial and nuclear DNA fragments were used to sort specimens; known or new taxa with their phenotypic variation described. The existence two traditional groups (boltonii- bidentata-group) confirmed. coronata Morton, 1916, however, belongs a different group. Molecular-analysis supported three one species (C. heros Theischinger, 1979, C. picta Selys, 1854, vanbrinkae Lohmann, 1993, kalkmani sp. nov.) boltonii-group. In bidentata-group, all specimens from West-Turkey belonged insignis Schneider, 1845, further east complex four closely related species, which we name charpentieri-complex amasina stat. rev., mzymtae Bartenev, 1929 charpentieri (Kolenati, 1846), rev. cilicia nov.). following taxa: nobilis syn. nov., nachitschevanica Skvortsov Snegovaya, 2015, nov. plagionyx Caucasian subspecies lagodechica 1930, synonymized charpentieri. Finally, provide key for Cordulegaster.