No more than 1 cm leg span. Reddish / Green striped front two leg pairs - Rear two leg pairs smaller and green and green body. Lively but seemed to tumble around a lot.
No interactions present.
Thanks but not sure about your ID, hopefully my picture will help - it wouldn't upload the other day.
Lat/Lng: 51.4376, -0.9408
OS grid ref: SU737714
Next to the Wilderness Wood on the University of Reading (Whiteknight's Campus) adjacent to the Lyle Building.