Is this some sort of sawfly?

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glallotments
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Any ideas whether this is some sort of sawfly?

My plot neighbour found it amongst her sweetcorn - the leaves have been shredded and some of the flowers nibbled - I thought it could be slug damage then she found this so I wondered if it's larvae were responsible even though we couldn't actually see any.
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Geoff
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Looking through my insect book it looks like rhogogaster viridis. None of the internet hits seem to say it is particularly nasty, for example http://www.plantpress.com/wildlife/o406-greensawfly.php
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glallotments
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Thanks Geoff - it's strange that it is on the sweetcorn.
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Parsons Jack
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I agree with Geoff on this.

The larvae feed on various herbaceous plants, and the adults prey on other insects. Possibly just a coincidence it was on sweetcorn.
Cheers PJ.

I'm just off down the greenhouse. I won't be long...........
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