Species delimitation analysis confirms monophyly of the thee mainland New Zealand lineages of Eucolaspis.

Inter Dist closest = mean pairwise tree distance between the members of the focal species and members of the next closest species; P ID(strict) = mean probability of correctly identifying an unknown specimen of the focal species using placement on a tree sequence; Av (MRCA) = mean distance between the most recent common ancestor of a species and its members; P (randomly distinct) is the probability that a lineage has the observed degree of distinctiveness due to random coalescent processes. Input tree was constructed by Bayesian inference method using GTR+G+I model.