Dogwood Sawfly larvae on a large red twig dogwwod (Cornus sericea) leaf. The biggest ones are a little over an inch long.
Early instar (the green one may be first instar?) of dogwood sawfly larvae
A late instar, about an inch and a half long. They have a powdery appearance, and a bright yellow underside.
A bright yellow on the underside.
Dogwood Sawfly (Macremphytus tarsatus) on Red Twig Dogwood (Cornus alba) in late summer
Found these on my redtwig dogwood & pagoda dogwood.