Sooty black/dark brown, pale buff stripe on sides. 7mm.
Attached to wallflower petal.
No interactions present.
Am constantly amazed at the ingenuity of Mother Nature - my stab at ID was way off.
Checked out discoverlife.org site from one of the other obs - copied it and your info into my Critters folder.
Lat/Lng: 51.224166, 1.193705
OS grid ref: TR230520