Portion of the tree of highest posterior probability from a 10 million-generation Bayes analysis of COI. The numbers of specimens of each species are collapsed (when possible) into single terminals (terminal triangles), with the number of specimens/OTUs for each collapsed species in parentheses. The length of the triangles represents the branch length from the node to the tip of the longest branch for that species. The numbers above the branches are the posterior probabilities × 100. The red dots indicate the three species that could not be differentiated morphologically. Modified from Sharkey et al. (2018).