Joined a butterfly walk at Trumpington Meadows, a Cambridgeshire Wildlife Trust Reserve. We eventually found the three target species, the Small blue, Purple Hairstreak and White-Letter Hairstreak along with lots of other species. This Copper photo was my favourite along with the Small Blue. A small fly took my eye - Eliozeta pellucens - which looks to be quite rare in the area. Species iID list at the end.