Please can anyone ID these bugs found on ground in a patch of isolated broadleaved woodland in Norfolk. Saw at least 5 in a few square metres. They look a bit like woodwasps but not the Greater Horntail. They are about 20-25mm in length.
Many thanks Clive.
Looking at the few images of X.longicollis I could find with Google these chaps/ladies (?) do look very similar which is quite exciting! The other species you mentioned seems to have red legs.
The sawflies were found in a tiny patch of damp woodland where there are a number of stacks of logs from felled trees. They were on the ground in a grassy clearing and seemed to be struggling about through the grass rather than flying off anywhere. The fact that one sawfly sat quite happily on my friend's finger whilst I photograhed it suggests they were a bit groggy. Do you think they were emerging from their pupae all at the same time like flying ants?
It is indeed X. longicollis, and its an important record - only the 8th time it has been recorded in the UK. Guy has requested that you get in touch with him as he's anxious to get full data. Could you please make contact with him via email? Guy.knight(at)liverpoolmuseums.org.uk. I've pasted his comment below and attached the mentioned newsletter to this post:
Thanks very much for helping to get my mystery sawfly identified . Brilliant news that such a tiny patch of woodland could have something so rarely recorded! I have emailed Guy Knight at Liverpool Museum.