Japanese beetle

The beetle species Popillia japonica is commonly known as the Japanese beetle. It is about 15 millimeters (0.6 in) long and 10 millimeters (0.4 in) wide, with iridescent copper-colored elytra and green thorax and head. It is not very destructive in Japan, where it is controlled by natural predators, but in America it is a serious pest of about 200 species of plants, including rose bushes, grapes, hops, canna, crape myrtles, birch trees, linden trees and others. (information from Wikipedia)