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Sawfly Metamorphosis

Posted by July 13th, 2007 at 12:00 am

Categories

Horntails, Wood Wasps and Sawflies

Nematus ribesii – Gooseberry Sawfly
Hello,
We really enjoy your site, it’s a great resource. My son and I have been looking at some caterpillars feeding on our Red Currant in Edmonton Alberta Canada.

sawfly eggs simons Sawfly Metamorphosissawfly larvae simons Sawfly Metamorphosis

They are voracious feeders, here are some pictures of the various stages from egg to larvae and adult.

sawfly larva simons Sawfly Metamorphosissawfly pupa simons Sawfly Metamorphosis

We managed to grow some larvae to the adult stage which made the identification much easier. Would you agree that this is Nematus ribesii – Goosberry Sawfly?
John and Andrew Simon

sawfly simons Sawfly Metamorphosis

Dear John and Andrew,
First, we want to praise you for your incredibly excellent documentation of this Sawfly Metamorphosis. What patience and diligence you have. We don’t disagree with your identification based on larval images found on the Down Garden Services website, but a real expert might have a definitive identification. A suspect adult image we located does not match your adult. Thanks ever so much for your contribution of, if not the metamorphosis of the Gooseberry Sawfly, Nematus ribesii, at least a closely related species.

sawfly larvae simons 2 Sawfly Metamorphosis

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