Erophila spring draba
Dichotomous table for leafminers
1a corridor ends upon the midrib or in the leaf base, vanishing there: Ceutorhynchus pallidactylus
1b corridor free in the leaf => 2
1c galls, etc => Tables for all parasites per species
2a larva with thoracic feet: Phyllotreta nemorum
2b larva without feet: Ceutorhynchus minutus