rose chafer

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Either of two scarab beetles, Macrodactylus subspinosus of North America or Cetonia aurata of Europe, that cause damage to the roots, leaves, and blossoms of roses, grapes, and other plants.

from The Century Dictionary.

• noun Same as rose-beetle or rose-bug.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A metallic-green beetle, Cetonia aurata, with a distinct V-shaped scutellum, found over central and southern Europe.
• noun A tan-colored beetle, Macrodactylus subspinosus, found in North America.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a common metallic green European beetle: larvae feed on plant roots and adults on leaves and flowers of e.g. roses
• noun common North American beetle: larvae feed on roots and adults on leaves and flowers of e.g. rose bushes or apple trees or grape vines