This is a Hummingbird Hawk Moth, a summer visitor to the UK, seen here on a red Valerian flower (one of its favourite sources of nectar).
I first noticed this moth – high excitement - in the front garden last week but of course, by the time I returned with the camera the moth had vanished. I kept my eyes open and the next day – same time, same place – there it was again and I managed to get this shot (I have since read that these moths are creatures of habit, and it is not uncommon for them to keep returning to the same flowers, at the same time of day).
Thanks for looking! Comments and criticisms welcomed…
1/2000s at f5.6