Rhigognostis incarnatella, the Scotch Smudge, is a moth of the Plutellidae family. It was described by Steudel in 1873. It is found in most of Europe. The wingspan is 17–21 mm. Adults are on wing from September to April in one generation per year, overwintering by hiding in thick cover. The larvae feed on Hesperis matronalis, Cardamine bulbifera, Sisymbrium, Alliaria and Cheiranthus species form beneath a silken web. Pupation takes place in a network cocoon made on a leaf.