Micro-endemic forms of Quedius obliqueseriatus in the North-Western Caucasus, their phylogeny, genetic diversity, and geographic distribution. A. COI barcode-based Bayesian phylogenetic tree. B. Haplotype network. C. Geographic distribution. Purple color indicates specimens from western clade, orange color indicates specimens from eastern clade. Filled circles in C (the map) indicate sequenced specimens; open colored circles in C (the map) indicate non-sequenced males assigned to either western or eastern clade by the shape of the paramere only; open non-colored (black) circles in C (the map) indicate non-sequenced material without available males, thus unassigned to any clade. Numbers at terminals (branches) of the tree in A correspond to the specimen code in the Suppl. material 1: table S2 that consists of the locality code (from 1 to 29, also used in Fig. 1) and sequential number of a specimen when there is more than one from a given locality. Numbers at nodes in the tree in A indicate posterior probability in percentage.