Green Pugs never look all that green to me, but if you can get them to settle in a pot with a clear base the underside pattern is very distinctive.
I've caught 10 Marbled White Spots before and the average date is June 29th, so this one was about one time. It is a species of acid heaths and damp woodland so I'm not sure why I catch it in the garden.
Toadflax Brocade (Calophasia lunula)
A resident species, the Toadflax Brocade is restricted to the south-east and central southern coasts of England, where it frequents mainly shingle beaches. A relatively recent colonist, arriving around 1950 and quickly gaining a foothold, but appears to be now in decline again.