Sawflies are small, dark, non-stinging wasps. Sawfly larvae skeletonize rose leaves.
Sawflies have five or more pair of prolegs, while caterpillars have less than five.
Curled rose sawfly larvae. Three species of sawflies feed on rose foliage. Scouting Rose sawflies produce damage called skeletonization by chewing away a layer of the leaf except for the veins. The thin layer remaining turns clear or brown and the uneaten veins appear like a skeleton. The older larvae of the bristly roseslug and curled rose sawfly chew holes rather than skeletonizing the leaves.