Dalton, D. T., R. J. Hilton, D. D. Kopp, and V. M. Walton. “Vouchers for Treehoppers (Hemiptera: Membracidae) Collected in Benton, Josephine, and Yamhill Counties, Oregon”. Catalog: Oregon State Arthropod Collection, vol. 4, no. 1, Mar. 2020, doi:10.5399/osu/cat_osac.4.1.4650.