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Photo#1067461
Columbine Sawfly larva, feeding - Pristiphora rufipes

Columbine Sawfly larva, feeding - Pristiphora rufipes
Coldwater Creek Road, Winneshiek County, Iowa, USA
May 12, 2015
May 10, 2015: collected eggs on Columbine, Aquilegia canadensis
May 11, 2015: collected fresh Columbine as host plant for the larvae that emerged from the eggs
May 12, 2015: looking closely at the freshly collected Columbine found a third tiny sawfly larva (previous sawfly larva )
The larva appears to be near the emergent cell on the leaf