Attached to the running stem of a dog rose
No interactions present.
This is a gall caused by a wasp, so as it is the gall you are interested in best to edit the post into 'Invertebrates'.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Lat/Lng: 52.3077, -0.0328
OS grid ref: TL342695