A Phylogenetic tree of the Trimeresurus albolabris complex produced using Bayesian inference on a concatenated alignment of three mitochondrial gene fragments (16S rRNA: 485 bp, cyt b: 1017 bp, ND4: 659 bp). Filled black dots at nodes indicate high support in both BI (PP > 80%) and ML trees (UFB > 95% and aSH-LRT > 80%) for colour coded-clades and major sub-clades, while hollow dots indicate strong support from only one method. Outgroups are not shown B Correspondence between mitochondrial clades (M) and species allocation (S) in Vogel et al. (2023). Note that Vogel et al. (2023) did not include the insularis and purpureomaculatus groups in their analysis C Discrepancies in geographical distribution of mitochondrial clades in this study (compare with Fig. 2). Better resolution through increased sampling in Indochina allowed division of “cf. albolabris 2” of Vogel et al. (2023) into two distinct subclades (cf. albolabris 2A and 2B). There are also discrepancies in clade allocations in the regions circled in red (see text for details).