Weintraub JD, Miller JS. The structure and affinities of the Hedyloidea: a new concept of butterflies. Cladistics. 1987, 3 (3): 299–304. doi:10.1111/j.1096-0031.1987.tb00512.x.
Weller SJ, Pashley DP. In search of butterfly origins. Molecular Phylogenetics and Evolution. September 1995, 4 (3): 235–46. PMID 8845961. doi:10.1006/mpev.1995.1022.
Heikkilä, Maria; Mutanen, Marko; Wahlberg, Niklas; Sihvonen, Pasi; Kaila, Lauri. Elusive ditrysian phylogeny: An account of combining systematized morphology with molecular data (Lepidoptera). BMC Evolutionary Biology. 2015, 15. doi:10.1186/s12862-015-0520-0.
Heikkila, M.; Kaila, L.; Mutanen, M.; Pena, C.; Wahlberg, N. Cretaceous origin and repeated tertiary diversification of the redefined butterflies. Proceedings of the Royal Society B: Biological Sciences. 2011, 279 (1731): 1093. doi:10.1098/rspb.2011.1430.
Kawahara, A. Y.; Breinholt, J. W. Phylogenomics provides strong evidence for relationships of butterflies and moths. Proceedings of the Royal Society B: Biological Sciences. 2014, 281 (1788): 20140970. doi:10.1098/rspb.2014.0970.