Maximum clade credibility tree and Minimum-spanning haplotype network. A Minimum-spanning haplotype network. Each colour represents a Cryptocephalus barii population. Circles represent the different haplotypes; their diameter is proportional to the haplotypes abundance. B Maximum clade credibility tree. Horizontal blue bars represent 95% HPD age confidence intervals for the nodes. Under the main lineage nodes is reported the divergence time in thousands of years before present. Above the nodes Bayesian posterior probabilities > 0.8 are reported, black asterisks indicate Bayesian posterior probabilities values < 0.80. Vertical coloured bars on the right of the tree indicate monophyletic clades, the colours identify the C. barii populations. Under the tree, in blue, the estimated surface temperature for the last 800,000 years (Hansen et al. 2013).