Caterpillar ID, please.

[Jonathan Evans]

I recently found several of these caterpillars on flag iris in my pond, and have also seen them on the same plant at the pools in Bentley Wood. Any ideas?

Jon

[millerd]

Without seeing their legs - which would be conclusive, they look a lot like sawfly larvae to me...

Dave

[Michaeljf]

Yes, they'd be sawfly larvae Rhadinoceraea micans (Iris Sawfly). They were featured in the documentary on the Halcyon River Diaries and they love chewing up the Yellow Flag Iris.

http://www.wildaboutbritain.co.uk/pictu ... hoto/82008

[Jonathan Evans]

Thanks both, that's great and much appreciated.