Sleeping flutterby

Well I assumed it was sleeping as it didn't move at all when I got close. Mind you it wasn't warm this afternoon so perhaps it was just sluggish.
I had quite a busy day, after usual morning walk I got ready for a business meeting and took Mum to Doncaster to catch her bus home, then went to Scunthorpe where I had a couple of hours to kill before my meeting. I had lunch in a garden centre - tried to buy some tomato plants but they'd sold out. Went over the road to a well known diy store where they not only had tommies but also a cucumber plant! Business meeting done I dashed home to plant the tomatoes in the greenhouse. Another walk where I found this flutterby.