Summary tree for all known species of Thitarodes. Samples in this study are labeled in color bars (blue, red and yellow). Each tip represents a cluster of all samples that are within 2.5% genetic distance from each other, the length of the grey bar represents the number of individual samples falling into the cluster. Numbers after the dots enumerate the number of samples that fall into a particular sequence type. All named individual samples are labeled. The genus Ahamus as designated by Zou et al. (2010) is labeled.