Updated checklist of Odonata fauna in the Turkish Thrace Region, with additional records of new, rare, and threatened taxa

A new record for the Odonata from Turkish Thrace, Lindenia tetraphylla (Vander Linden, 1825), and its heterofamilial heterosexual tandem with a female of Orthetrum albistylum (Selys, 1848) are reported. This finding increases the species number in the region to 56. The current species list of the region based on unpublished records and available literature is presented. Five species are listed at subspecies levels in the region and the controversial subspecies status of some species is summarized. Additional records of rare species based on specimens collected in the region between 2001 and 2015 are provided and their distributions and threat statuses in the European regional assessment are considered. Somatochlora flavomaculata (Vander Linden, 1825) is considered as a species whose presence in the region needs to be confirmed. The presence of Gomphus schneiderii Selys, 1850 is unclear in the region.