Cynara artichoke
Dichotomous table for leafminers
1a small blotch mine: Agonopterix propinquella
1b large blotch mine => 2
1c corridor mine => 3
1d galls, etc => Tables for all parasites per species
2a larva a maggot; larvae mine all their life: Pegomya steini
2b larva with feet and well recognisable head; older larvae live free under a spinning: Tebenna micalis
3a mine in the midrib: Ceratapion damryi
3b mine at least partly also in the lamina => 4
4a corridor pinnately branched, main axis on, partly also in, the midrib => 5
4b corridor not pinnate, freely winding through the leaf => 7
5a main branch with numerous, short, side branches; larva: rear spiraculum with 3 papillae => 6
5b side branches longer, less numerous; rear spiraculum with 10-16 papillae: Liriomyza strigata
6a the mine begins at an elliptic egg shell; frass powdery: Pegomya terebrans
6b no egg shell visible; frass in distinct grains: Agromyza apfelbecki
7a corridor long and broad; larva with thoracic feet and chitinised head => 8
7b corridor shorter and narrower; larva a maggot => 9
8a larva hibernates in the mine: Sphaeroderma testaceum
8b larva leaves the mine before the winter (and pupates in the soil): Sphaeoderma rubidum
9a puparium in the mine in a, usually lower-surface, pupal chamber; larva: rear spiraculum with 6-9 papillae: Chromatomyia cf syngenesiae
9b pupation outside the mine; rear spiraculum with about 25 papillae: Phytomyza cirsii
Not included in the key: Agonopterix subpropinquella; Argopus circumaedeagus; Coleophora argenteonivea.