A Tenthredinid sawfly
Introduction
The photograph on this page of A Tenthredinid sawfly by Lairich Rig as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Lairich Rig Taken: 15 Jun 2018
The fly was on the vegetation beside a Image It is similar in appearance to (and perhaps is) the species Tenthredo mesomela. The solid black feature that runs along the front edge of the wings is called the stigma (or pterostigma). The black stigma helps to distinguish this fly from similar Rhogogaster species (which have green stigmata). Some sawflies of the family Tenthredinidae cause plant galls.
