Discovered in Essex in 1989.
Now fairly common in gardens and other suburban habitats.
Leaf-mine: July, October - April
Mine on upper side of leaf and silvery.
Verification Grade Comment: Mine: Accept if on Pyracantha, if not then L
Recorded in 59 (80%) of 74 10k Squares.
First Recorded in 1998.
Last Recorded in 2021.