Coronopus swinecress, wartcress
Incl. Senebiera.
Dichotomous table for leafminers
1a larva with chitinised head => 2
1b larva a maggot => 4
1c galls, etc. => Tables for all parasites per species
2a larva greyish green, with prolegs; a leaf is completely mined out: Hellula undalis
2b larva bone coloured, without prolegs; mine less extensive => 3
3a larva without feet; mine more or less a gallery: Ceutorhynchus minutus
3b larva with thoracic feet; mine more blotchy: Phyllotreta nemorum
4a a gallery to the end; frass in discrete black grains; pupation in the mine, in a, usually lower-surface, pupal chamber: Chromatomyia horticola
4b mine in the end a blotch; frass powdery or in strings; pupation usually external, never in a pupal chamber => 5
5a frass in black strings: Liriomyza xanthocera
5b frass, powdery, in green clouds, often only visible after the mine has been opened: Scaptomyza flava