Leafhopper adults are elongated, wedge shaped and somewhat triangular in cross-section. They jump and fly off readily. Depending on species, they range in size from 1/8 to 1/2-inch and their bodies are colored yellow, green, gray or they may be marked with color patterns. Nymphs resemble adults but are wingless. They can run rapidly, occasionally sideways, and hop. Very common and various species feed (with sucking mouth parts) on the juices of a wide variety of plants; occasionally injuring plants and transmitting plant diseases; medically harmless although adult leafhoppers are capable of biting, temporarily producing pain.