Agrotis arenarius

Agrotis arenarius is a moth of the family Noctuidae. It is endemic to Sable Island, Nova Scotia.
Some biologists think it survived on the Sable Island Bank during the Ice Age. However, there is geological evidence that the Sable Island Bank was flooded after the glaciers melted. If the island formed since then, it could not have been a refuge during the Ice Age.