The Great Dart (Agrotis bigramma) is a moth of the Noctuidae family. It is found along the southern shores of the Baltic Sea to China, the Levant and North Africa. Migrants have been reported as far west as Great Britain. The last reports where from St. Agnes (Isles of Scilly on 10 August 1997). The wingspan is 40–48 mm. Adults are on wing from September to December. There is one generation per year. The larvae feed on the roots of Poaceae species and other low growing herbaceous plants.