1amine < 1 cm, full depth, often in large numbers together in a leaf axil; larvae, with distinct feet and chitinised head, later live free and cause extensive window feeding: Epermenia chaerophyllella

1bmine > 1 cm, not full depth; larva a maggot => 2

1c gallen etc => Tabellen voor alle parasieten per soort

2aprimary blotch, primary and secondary feeding lines conspicuous: Euleia heraclei

2bcorridor or secondary blotch; no secondary feedings lines => 3

3asecondary blotch, often between two veins; mine with full depth patches; larva: rear spiraculum with 3 papillae: Liriomyza xanthocera

3bcorridor; no full depth patches; rear spiracula with > 3 papillae => 4

4apuparium formed in the mine: Chromatomyia horticola

4bpuparium formed after the mine has been vacated => 5

5afrass in strings: Liriomyza bryoniae

5bfrass in discretre grains: Phytomyza spondylii *