Body length 16 - 20mm. A large, bee-like sawfly with clubbed antennae. Very like T. leucorum, but with all dark tibiae.
Woodland edge and hedgerows. The larvae feed on Hawthorn.
Status and distribution
Widely distributed but uncommon in Britain. Uncommon in Nottinghamshire and recorded once at Netherfield Lagoons.
Best time to see
May to July.