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Horntails, Wood Wasps and SawfliesA fly of about 1 cm. Bright yellow abdomen, brownish clear wings, slightly back curving antenae
June 5, 2010
On a rose bush in southern UK. A warm day, no wind. stayed on bush al day, gone at sundown – all three, see images
Richard Avery
Salisbury, Southern UK
Large Rose Sawflies
Hi Richard,
These are actually Sawflies, nonstinging relatives of wasps whose larvae often resemble caterpillars and when numerous, they are capable of defoliating trees and shrubs. We don’t recognize this species and we will do some research to properly identify it. The Bugs and Weeds website does not picture this species.
Large Rose Sawfly
Daniel, Whoa, that was quick. I’ll wait for your species id. Thanks.
Richard
Daniel,
Now you have given me the heads up on sawflies I have investigated further and discovered it is ‘Arge pagana’ , the Large Rose Sawfly. Seeing the speckled larvae was an ‘Oh, right!!’ moment as I had seen them many times on my roses and never got around to identifying them.
Many thanks for your prompt and accurate info, guys like you make life so good!
regards from the UK
Richard
Hi again Richard,
We are glad we could help. Thanks so much for writing back with the species name Arge pagana for the Large Rose Sawfly. The Garden Safari website has excellent information on the Large Rose Sawfly.
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[...] Tanya, This was a very easy ID for us, because last week we received a photo of the same species from UK. We knew it was a Sawfly, but we were not sure of the species. Once we provided the querant, [...]
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