2 specimens, I think they are the same species?
No interactions present.
Thank you again Chris - I do have a lot to learn!!
...although the colouring of the top one had me fooled into thinking it was D. flavilinea for a second. The antennae are more clavate (A2) in ruber, though, and these also don't have the pale hind margin to the pronotum that is very characteristic of flavilinea.
Thank you Joe, thats excellent info,
Kind regards, Martin
Lat/Lng: 51.6184, -0.5028
OS grid ref: TQ037921