The Drosophila melanogasterspecies group belongs to the subgenus Sophophora and contains 10 subgroups. The phylogeny in this species group is poorly known despite many studies covering many of the species subgroups. The most likely explanation is that the various subgroups diverted from each other in a relative short evolutionary time frame. Three subgroups have not yet been investigated in molecular studies, and their position in the phylogeny is unclear. The suzukii subgroup is paraphyletic as D. lucipennis is systematically placed within the elegans subgroup.
^Da Lage, J.-L., Kergoat, G. J., Maczkowiak, F., Silvain, J.-F., Cariou, M.-L. & Lachaise, D. (2007). A phylogeny of Drosophilidae using the Amyrel gene: questioning the Drosophila melanogaster species group boundaries. Journal of Zoological Systematics and Evolutionary Research 45, 47–63.