Silver-Y moth
migrating back to southern Europe for the winter months. The moths can fly 2,000 to 2,500 km. In temperate climates, the species produces one to two overlapping [...] They fly rapidly from flower to flower, often resting with their wings folded roof-like above the body. The female lays up to 2,000 eggs on the underside [...] caterpillars are nocturnal. When the caterpillar is full-grown, it will form a greenish to black pupa, either in leaves which are woven together with silk threads