Cerotoma trifurcata

Cerotoma trifurcata (also known as the bean leaf beetle) is a species of beetle in the Chrysomelidae family that can be found in the Eastern and West United States. Adult beetles are 3.5–5.5 millimeters (0.14–0.22 in) in length, and have a punctated elytron at their posterior region. Morphs can occur with red or yellow elyra and four black spots as well as a non-spotted morph. The head is always black. The beetle feeds mostly on vegetables that are in the cotyledon-stage, such as cucumbers, cucurbits, pumpkin, and squash. It also can be a pest of legumes such as soybean.