Chrysolina herbacea is a species of leaf beetle commonly known as the green dock beetle. It is a small insect, measuring around 6-8 millimeters in length. The beetle has a metallic green coloration, which helps it blend in with the leaves of its preferred food source, dock plants. Chrysolina herbacea is found in Europe and North America and is known for its feeding habits, which can cause damage to dock plants in agricultural and natural settings.