Neighbor-joining tree of species in the Caryocolum interalbicella species group (Kimura 2-parameter, built with MEGA 6; Tamura et al. 2013), only sequences (>500 bp) considered. Note: the scale bar only applies to internal branches between species. Width of triangles represent sample size, depth the genetic variation within the cluster. Source: DNA Barcode data from BOLD (Barcode of Life Database; Ratnasingham 2018).