The homopterous family, Cicadellidae, may be distinguished from its closely related allies the Membracidae and Cercopidae by the presence of a double row of spines on the hind tibiae. The leafhoppers are popularly known as pests of grains and grasses, but their injury is by no means confined to these crops, for there is scarcely a plant of agricultural importance that is not seriously injured by them. Many species rank high as garden, orchard, and vineyard pests. The nature of their injury is loss of sap, destruction of chlorophyll, serious contortions of foliage, and the transmission of plant diseases. By consulting the Iowa Insect Survey, which consists of specimens collected by students and others throughout the state, we find the following list of leafhoppers represented. The numbers are taken from "Catalogue of Hemiptera" by Van Duzee.
Proceedings of the Iowa Academy of Science
©1940 Iowa Academy of Science, Inc.
"A List of the Leaf Hoppers (Cicadellidea) in the Iowa Insect Survey Collection,"
Proceedings of the Iowa Academy of Science, 47(1), 393-395.
Available at: https://scholarworks.uni.edu/pias/vol47/iss1/97