Palaearctic leaf beetle Chrysolinafastuosa (Coleoptera, Chrysomelidae, Chrysomelinae) new to North America.

, suggest the north-eastern US and south-eastern Canada, from the Atlantic coast to the west end of Lake Superior provide the most suitable conditions for this species. The United States of America and Canada are now known to be home to 70 or more species of adventive Chrysomelidae.