Currant sawfly (aka imported currantworm) adult.

Currant sawfly eggs on leaf.

Feeding damage caused by currant sawfly larvae

Close-up of currant sawfly larvae

All images of imported currantworm (currant sawfly) were provided by:  Whitney Cranshaw, Colorado State University, Bugwood.org.  Images for ambrosia beetle, hemlock woolly adelgid & a variety of lace bugs have been posted previously to this site.  Please use the search function to locate these photos.