Food Plant: Symphytum officinale (Common Comfrey)

Mine: September

Notes: Several larvae feed together to make a corridor(shown bottom left) which leads to a large blotch mine. A local miner

Data: 14.ix.2017, Wicken, Cambs, VC29

Image:© Rob Edmunds

References:
Hering, M (1957) - Bestimmungstabellen der Blattminen von Europa.
Spencer, K.A (1972) - "Diptera: Agromyzidae" Handbooks for the Identification of British Insects, Royal Entomological Society of London.