Flowerhead-borer
Guides
Eucosma cana
Hoary Bell
Eucosma cana, commonly known as the hoary bell, is a small tortricid moth with a wingspan of 16–23 mm. It is widespread across Europe, parts of Asia including China and Japan, and Central Asia. The species is univoltine, with adults active from June to August. Larvae develop within the flowerheads of thistles and related plants, feeding on Cirsium, Carduus, and Centaurea nigra.