Last week a consultant near Creston, Iowa identified an interesting insect feeding on soybean. With the aid of a photo, we were able to confirm it as the threecornered alfalfa hopper, Spissistilus festinus (Hemiptera: Membracidae). This insect is native to the southern U.S. and South America and can be an economic pest of soybean in southern growing regions. ISU entomologists cannot recall a previous detection in Iowa.
Available at: http://works.bepress.com/erin_hodgson/184/