Trollius globe flower
Dichotomous table for leafminers
1a Full depth blotch; larva with thoracic feet: Pseudodineura enslini
1b Mine not full depth, greenish in transparancy; larv a maggot, without feet => 2
1c galls, etc => Tables for all parasites per species
2a Primary blotch; pupation outside the mine: Phytomyza trolliivora
2b Gangmijn of secondaire blaasmijn; verpopping binnen of buiten de mijn => 3
3a Corridor, may be strongly widened in the end; pupation outside the mine: Phytomyza trollii
3b Secondary blotch; pupation within the mine: Phytomyza trolliophila