Heliophila fairy-of-the-veldt
Dichotomous table for leafminers
1a larva with chitinised head: Ceutorhynchus minutus
1b larva a maggot => 2
1c galls, etc. => Tables for all parasites per species
2a one or more narrow galleries eventually merging and widening into one large blotch: Scaptomyza flava
2b corridor from start to end: Liriomyza bryoniae