Silver-Y moth
the antennae are long and thin. The moths fly during the day as well as at night, often in large swarms. They fly rapidly from flower to flower, often [...] 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 [...] the second generation that inflicts much damage to agricultural crops, particularly brassicas, from August onward. The silver-Y moth ( Autographa gamma )