Figure 5: Ultrametric gene tree including all COI haplotypes used for species delimitation with the GMYC model. Red branch splits show the intra-specific divergence within clusters that correspond to different OTUs (Operational Taxonomic Units) or putative species. Black lines and Linnean species names on the right indicate the species identity according to morphological determination. Red lines show monophyletic Iberian clades within recognized Linnean species. Blue lines indicate Iberian clusters classified as different putative species by GMYC. Green line (E. quercaria) shows monophyletic Italian clade within recognized Linnean species. Purple line (W. uncinula) indicates Italian cluster classified as different putative species by GMYC. The letters besides the scientific name in the taxon labels indicate the country/ies in which each haplotype was recorded (AUT-Austria; CRO-Croatia; CZR-Czech Republic; FIN-Finland; FRA-France; GER-Germany; GRE-Greece; ITA-Italy; NED-Netherlands MAC-Macedonia ROM-Romania; SLO-Slovenia; SPN-Spain and UK-United Kingdom).