green and orange caterpillar with black spots, larvae of the large rose sawfly arge pagana eating a rose leaf

animal arge argidae background black british caterpillar closeup common conservation cutter destroy eating feeding garden green head hymenoptera immature insect large larva leaf leaves lepidoptera macro metamorphosis mint natural nature nene northamptonshire orange pagana pest plague plant pupa rosa rose sawfly small species spots symphyta tail three tip two valley warmington wildlife worm young