The rapeseed sawfly is a type of hymenopteran insect from the family of true sawflies. Distributed everywhere. Damages mustard, rapeseed, cabbage and other plants of the cabbage family. Imago 7-8 mm long, with two pairs of transparent membranous wings. The body is shiny, bright orange. Antennae,
head and dorsal sides of thoracic segments black, legs rufous yellow. Caterpillar up to 18-25 mm long, ...