Cryan, J., Wiegmann, B., Deitz, L., Dietrich, C., Whiting, M., 2004. Treehopper Trees: Phylogeny of Membracidae (Hemiptera: Cicadomorpha: Membracoidea) Based on Molecules and Morphology. Systematic Entomology 29, 441-454. doi:10.1111/j.0307-6970.2004.00260.x

, Stunzenas, Cryan, J., Molloy, D., 2004. Comparison of rDNA Sequences from Colchicine Treated and Untreated Sporocysts of Phyllodistomum folium and Bucephalus polymorphus (Digenea). Parasitology International 53, 223-228. doi:10.1016/j.parint.2003.12.003

Urban, J., Cryan, J., 2007. Evolution of the Planthoppers (Insecta: Hemiptera: Fulgoroidea). Molecular Phylogenetics and Evolution 42, 556-572. doi:10.1016/j.ympev.2006.08.009

Gompper, M.E., Kays, R., Ray, J.C., LaPoint, S.D., Bogan, D.A., Cryan, J., 2006. A Comparison of Non-invasive Techniques to Survey Carnivore Communities in Northeastern North America. Wildlife Society Bulletin 34, 1142-1151. doi:10.2193/0091-7648(2006)34[1142:ACONTT]2.0.CO;2

Urban, J., Cryan, J., 2009. Entomologically Famous, Evolutionarily Unexplored: The First Phylogeny of the Lanternfly Family Fulgoridae (Insecta: Hemiptera: Fulgoroidea). Molecular Phylogenetics and Evolution 50, 471-484. doi:10.1016/j.ympev.2008.12.004

Urban, J., Bartlett, C., Cryan, J., 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

Cryan, J., Svenson, G., 2010. Family-level Relationships of the Spittlebugs and Froghoppers (Hemiptera: Cicadomorpha: Cercopoidea). Systematic Entomology 35, 393-415. doi:10.1111/j.1365-3113.2009.00520.x

Cryan, J., Urban, J., 2012. Higher-level Phylogeny of the Insect Order Hemiptera: Is Auchenorrhyncha Really Paraphyletic?. Systematic Entomology 37, 7-21. doi:10.1111/j.1365-3113.2011.00611.x

Bell, A., Svenson, G, Cryan, J., 2014. The Phylogeny and Revised Classification of Machaerotidae, the Tube-making Spittlebugs (Hemiptera: Auchenorrhyncha: Cercopoidea). Systematic Entomology 39, 474-485. doi:10.1111/syen.12066