Threecornered alfalfa hopper
The threecornered alfalfa hopper is a green, wedge-shaped insect with clear wings. The body, which is about 0.25 inch long, is higher and wider at the head end than and tapers towards the posterior. This insect gets its name from the hardened triangular (three cornered) area over the thoracic area as seen from above. It has piercing-sucking mouthparts. Nymphs are grayish white and soft bodied, with a line of saw-toothed spines on their backs.