"Few sawflies have hairs such as this. Rather long hairs on body, prolegs on abdominal segments 2-7 and 10, and feeding on rose pretty well narrows this down to the bristly roseslug." --Dr. Smith's comments
Native to the Palaearctic; probably introduced in North America(2)
Larvae feed on rose leaves, raspberry and strawberry; skeletonizing at first and eating all the leaf tissues but the veins when they get bigger.
They go through multiple generations a year, if the weather stays warm.
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