Turnip Sawfly Athalia rosae
Cyclepath verges north of Old Shoreham
I think the illustrated insect is the sawfly Tenthredo arcuata.
This Rhogogaster sawfly was seen on Field Scabious in the central Triangle area of Mill Hill,
The first one, a sawfly, was spotted, probably on Cow Parsley on south side of the Buckingham Cutting.
The second sawfly was seen on Yarrow on the top meadows of Mill Hill.
They may be the same species. Tenthredo arcuata is my suggestion. If it is this species, the adult preys on small flies.
previously unrecorded flying insect was spotted on
the lower slopes of
This is a Rhogogaster sawfly
Sawfly Images (David Element)