Did you find it?
Attached to the underside of these Elm leaves is a caterpillar with remarkable camouflage!
Aptly named the Elm Sphinx (ceratomia amyntor), this caterpillar is actually quite large, easily the size of an adult pinky finger. After its pupation stage, it will spend its adult life as the Elm Sphinx moth with a 5 inch wingspan.
It's amazing that something this large could be so good at hiding!