Simon, C.; Gordon, E. R. L.; Moulds, M. S.; Cole, J. A.; Haji, D.; Lemmon, A. R.; Lemmon, E.M.; Kortyna, M. et al. (2019). "Off-target capture data, endosymbiont genes and morphology reveal a relict lineage that is sister to all other singing cicadas.". Biological Journal of the Linnean Society20 (4): 1–22. doi:10.1093/biolinnean/blz120.