Callistethus marginatus.
 
 
 
Size: approx. 15 mm. Photo: 07/02/14, 8 pm.


Another scarab beetle. This species has a characteristic greenish sheen. The head and the pronotum are darker. Notice the paler sides of the pronotum. 
 

 
bug guide (this photo):
http://bugguide.net/node/view/949311