Shield Bug ? on Scented Leaved Pelargonium in garden.
No interactions present.
This shieldbug is a final instar - next time it sheds its skin it will be an adult. There's an excellent chart of the life stages of the more common UK shieldbugs to be found on the British Bugs website: http://www.britishbugs.org.uk/heteroptera/idcards/life_stages.html
Lat/Lng: 51.903, 0.34
OS grid ref: TL610253