1amine on broad-leaved species (e.g. Ramsons, A. ursinum): Cheilosia fasciata

1bmine on species with linear or tubular leaves (Onion, Chives etc) => 2

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

2alarva with head and thoracic feet => 3

2blarva a maggot => 4

3a larva with abdominal prolegs: Acrolepiopsis assectella

3b larva without prolegs: Oprohinus consputus

4a at the beginning of the mine an oval egg shell; larval mandible with 1 tooth: Hydrellia griseola

4b no egg shell; mandible with 2 teeth => 5

5a larva: rear spiraculum tapering into a sharp point: Scaptomyza pallida

5b rear spiraculum rather fist-shaped => 6

6a puparium is formed in the mine => 7

6b puparium formed after the larva has left the mine => 8

7a larvae 3 mm at maximum; puparium right under the surface, the anterior spiracles penetrating the epidermis: Chromatomyia horticola

7b larvae 5-8 mm; puparium sunken deeper into the plant tissue, anterior spiracles not penetrating: Phytomyza gymnostoma

8a larva: anterior spiraculum with 7, posterior with 9 papillae:Liriomyza cepae

8b larva: anterior spiraculum with 9-13, posterior with 14-15 papillae: Liriomyza nietzkei