Fig. 2

The taxonomic approach applied in the present study: A formulation of morphological primary species hypotheses (morPSH) and subsequent DNA barcoding of selected representatives of each morphospecies; B molecular operational taxonomic units (MOTUs) used in phylogenetics and molecular species delimitation methods—as a result, molecular primary species hypotheses (molPSH) were posed; C integration and cross-validation of both PSHs: the most parsimonious and congruent solutions were sought to restrict the number of secondary species hypotheses (SSH), which mostly corresponded with taxa (see Table 2)