Urban, J.M., Bartlett, C.R., Cryan, J.R., 2010. Evolution of Delphacidae (Hemiptera:Fulgoroidea): Combined-Evidence Phylogenetics Reveals Importance of Grass Host Shifts. Systematic Entomology 35, 678-691. doi:10.1111/j.1365-3113.2010.00539.x