Phylogenetic relationship of the acanthosomatid stinkbugs on the basis of mitochondrial COI gene sequences. A total of 611 aligned nucleotide sites were subjected to the analysis. A Bayesian phylogeny is shown. Support values for the nodes are indicated as in Figure 3. The phylogeny includes an additional four stinkbug species as outgroup taxa, whose family names are shown in parentheses. Sequence accession numbers are in brackets.