Searching at Caswell Bay on Wednesday night, 30th Jan., on the cliffs where Devonshire Wainscot occurs produced these two. The white dorsal stripe looks much like Barry's Square-spot Rustic. The green one has distinctive black marks either side of the last abdominal segment. Both are about 25mm and I will try growing them on, but if anyone has id suggestions do say! Both on the fine grass shown.