Adults of Calliphora have a grey or black thorax, the colour dulled by a heavy microtomentum. The abdomen is metallic blue (rarely purple or green) and sometimes also dulled by microtomentum.
Adults of Calliphora have a thorax that is typically grey or black, with its coloration diminished by an abundance of microscopic covering. The abdomen is usually a bright metallic blue, although it can occasionally be found in other colors, and may also be partially obscured by this same covering.