Female hazel leaf roller weevil on hazel leaf. Two of the pictures show an egg – surprisingly large in relation to the parent – which had appeared the second time I went to look at the hazel leaf with the insect. The final shots show a different leaf which may be rolled up around eggs. I didn’t unroll it to check.
Tiny but its colour is a strong contrast with the leaves it lives on. Apparently quite a common insect, but this is the first one I ever noticed.