Feeding on Galium aparine, unable to identify.
No interactions present.
Thanks for the id. Can't look at images at present but will do so when I can get to the PC.
Update: have had a look at web images (easy when you know what to look for!), and it looks spot on.
It's new to me - never lived in its area before.
Lat/Lng: 52.4515, -0.1889
OS grid ref: TL231852