Phlox
Dichotomous table for leafminers
1a full-depth corridor or blotch; the larva spends most of its time as a stem borer: Delia echinata
1b gallery; the larve keeps within the leaf => 2
1c galls, etc => Tables for all parasites per species
2a pupation within the mine, in a, generally lower-surface, pupl chamber; frass in isolated grains: Chromatomyia horticola
2b pupation outside the mine; frass in strings => 3
3a gallery pinnately branched; main and side branches on top of midrib and side veins: Liriomyza strigata
3b corridor less, and never pinnately, branched: Liriomyza bryoniae
Not included in the key: Liriomyza trifolii.