 The two genera were at one time included in the tanager family Thraupidae.In a large phylogenetic study of the finch family using mitochondrial and nuclear DNA sequences published in 2012, Zuccon and colleagues found that the only "Chlorophonia" species included in their analysis, the blue-naped chlorophonia, was nested within the "Euphonia".This indicated that the genus "Euphonia" was paraphyletic.