Variable species, white streaks sometimes joining together.
Leaf-mine: June - July, September - October
Mine difficult to distinguish between P. Hostis and P. blancardella. Must be reared to confirm.
Verification Grade Comment: Mine: must be bred to rule out other Apple feeders inc P. Hostis
|Determination by Genitalia Examination (gen. det.) Required|
|Mine: Moth needs to be reared and, in some cases, possibly dissected. |
Recorded in 31 (45%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2020.