Cimbex americana - Elm sawfly larvae - Cimbex americana
Ledges State Park, Boone County, Iowa, USA
July 31, 2011
Size: about 2" long
Found this larvae posed in a basswood tree at Ledges State Park during gathering_2011. It was too high up to get other angled photos. The fly sitting on the twig to the upper right looks like a Tachinid...perhaps looking for a larvae to lay eggs on??