A common daisy [ Bellis perennis] and a male common blue butterfly [Polyommatus icarus].
The name daisy is supposed to come from the Anglo saxon dæges eage which means 'day's eye'.
Daisies close their petals at night and open them again in the morning after a good night's sleep leading to the idiom, 'fresh as a daisy .'
This daisy has pure white petals but some plants have a dusting of pink on the edges of the petals. As a child, I used to spend hours making daisy chains and daisy bracelets and daisy crowns - the daisy chains would wilt fairly quickly, but most of the fun was in making the chains as long chains possible.