On my walk in the forest the other day, I saw this orange tip (Зорька, Anthocharis cardamines) getting ready to eat. Its tongue is out, but still rolled up:
Olympus Stylus 1s, 300mm, ISO200, f8, 1/320s
And there he goes:
Olympus Stylus 1s, 300mm, ISO200, f8, 1/250s
The flower it is sitting on is called cuckooflower (Сердечник луговой, Cardamine pratensis), its favourite food source.