Agonopterix purpurea is a moth of the Depressariidae family. It is found in most of Europe. The wingspan is 13–15 mm. Adults are on wing from August to May or June. The larvae feed on Anthriscus sylvestris, Chaerophyllum temulum, Daucus carota and Torilis japonica.They initially create a small, irregular, full depth mine with conspicuous frass. They soon vacate the mine and continue feeding in a tubular rolled leaf. Larvae can be found from May to early June. They are green with darker length lines and a shining black head. The species overwinters as an adult. Pupation takes place in a cocoon in the earth.