A lot of these bugs were on my runner beans on my allotment.
No interactions present.
Thank you for the identification. On closer inspection I thought it was a "shield bug" but I'm more used to seeing the green variety. At one point there were a number covering the beans, but within a week most had disappeared and they did no damage to the crop.
Lat/Lng: 51.2828, 0.5194
OS grid ref: TQ757567