FIGURE 4. Bayesian mitochondrial ND4 phylogram with maximum likelihood bootstrap proportions (left) and Bayesian posterior probabilities (right) values at each node. The tree was rooted with sequences for the outgroup P. frosti but we excluded these so that the tree could be presented at a readable scale due to the long branch to the outgroup. Numbers at start of each terminal taxon name refer to locality code in Table 1.