Status
Formerly considered scarce, now widespread.
Discovered in London 1996 and has since spread substantially.
First Norfolk record of abundant mines on Holm Oak at Thetford in 2011. (Lee Gregory, 03/04/11)
"The trees were totally infested and it was a job to find a leaf without mines and most leaves having 5+ mines! "
Leaf-mine: Nov - April - A contorted gallery mine with usually several mines in one leaf.Verification Grade Comment: Adults must be reared and/or Gen. Det. to confirm.  | Determination by Genitalia Examination Required | |
Recorded in 52 (70%) of 74 10k Squares.
First Recorded in 2011.
Last Recorded in 2024. |