Food Plant: Phragmites australis (Common Reed)
Mine: Summer
Notes: Cylindrical galls up to 6 cm long are formed enclosing a single larva in a central woody chamber. The gall becomes brown over winter and the adult flies emerge in June
Data: Norwich, Norfolk, VC27
Image:© Vanna Bartlett
sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists
