1a fleck mine: Coleophora arctostaphyli

1bcorridor and/or blotch => 2

1c galls, etc => Tables for all parasites per species

2a mine small, with fine frass grains; older larve live free among spun leaves: Argyroploce arbutella

2b mine much larger; larva mines all its life => 3

3a either a corridor that disappears in the petiole, or a blotch that originates there: Etainia albibimaculella

3b no association with the petiole: Epinotia nemorivaga