Pear sawfly larvae, also known as cherryslug or pearslug, and feeding damage; mature larvae do not have dark slimy coating.

Sluglike larva next to newly molted yellow larva lacking slime coating, next to skeletonized patches on leaf, ca 2X; from Hollister Credit: Jack Kelly Clark
Pear sawfly larvae, also known as cherryslug or pearslug, and feeding damage; mature larvae do not have dark slimy coating. Credit: Jack Kelly Clark