Eurydema ornata can reach a length of. The body has gray or brightred colors, with black markings. Sometimes it shows the red patchescoloured white and yellowish-green. This shield bug sucks the sap of plants, especially crucifers, such as cabbage, cress and radish. It may become a parasite that can damage crops. It overwinters as an adult. The nymph is paleyellow and orange with dark brown or black pronotum and markings on the dorsal side of the abdomen.