Chrysomelidae

May to July

Korea, Northeast China and East Siberia

It is around 7.0-millimeter-long. They usually have round and convex feature. Colors of the back of body vary from brown to yellowish brown. Head and the lower part of body are black, and the antennas are yellowish brown with the 7th to 11th segments in black color. Head is hidden in the back area of prothorax. Forehead has deep wrinkles, stipples and fur. There is a little bit of fur between stipple patterns of elytra, and the expanded part on the edge is a third of the width. Their body color vary as they usually have green body when they are living, but they become yellowish brown when dead.

They are usually observed in mugwort.