Phylogeographic analysis of Leuctra braueri, based on the COI gene fragment, 658 bp in length. A ML phylogenetic tree. The terminals correspond to the BOLD IDs. Individuals collected in present study are marked with asterisks. Bars in different colours represent the results of species delimitation methods; B Phylogenetic network obtained by the statistical parsimony (TCS network). Colour coding corresponds to the groups in the species tree; C Geographical distribution of analysed haplotypes. Colour coding corresponds to the groups in the species tree and the TCS network.