Dichotomous table for leafminers
1a pinnately branched gallery, main and side branches on top of midrib and side veins: Liriomyza strigata
1b gallery not pinnately branched, running independently of the leaf venation => 2
1c galls, etc => Tables for all parasites per species
2a pupation within the mine, in a, generally lower-surface, pupal chamber; frass in isolated grains: Chromatomyiia cf syngenesiae
2b pupation outside the mine; frass in strings: Liriomyza bryoniae
Not included in the key: Liriomyza trifolii.