The European chafer (Amphimallon majale classified as Rhizotrogus majalis prior to Montreuil 2000) is a beetle of the family Scarabaeidae. Formerly found only in continental Europe, this invasive species is now found at temperate latitudes in North America. The large, white grubs of A. majale feed on the roots of most cool-latitude grasses, both wild and cultivated. This has made the European chafer an enemy of lawns.