General comments: A large, sub-circular mine on elm leaves will probably be this species - usually easily separated from the smaller and elongated mines of P. tristrigella. It appears to be far less prevalent than tristrigella, however.  | Mine: Either the leaf or a good photograph required | |
Recorded in 31 (76%) of 41 10k Squares. First Recorded in 1890. Last Recorded in 2023. |