Angelica wild angelica
incl. Archangelica, Ostericum.
Dichotomous table for leafminers
1a short, clear, full depth corridor mines, usually several together in the axils of the lateral veins; larvae with distinct heads and feet; older larvae only with their front parts in the mine: Epermenia chaerophyllella
1b larger blotch or corridor mine, not in groups in the vein axils; larva a maggot => 2
1c galls, etc => Tables for all parasites per species
2a large blotch with conspicuous primary and secondary feeding lines; larva: rear spiracula each with 3 papillae => 3
2b corridor or blotch mine without conspicuous feeding lines; rear spiracula with more papillae => 4
3a larva in June – October: Euleia heraclei
3b larva in October – November: Cryptaciura rotundiventris
4a mine with a very inconspicuous lower-surface initial corridor; later mine a sometimes quite broad corridor or secondary blotch => 5
4b no lower-surface initial corridor => 6
5a later mine definitely corridor-like over its whole length; larva: upper backward-directed arm of cephalic skeleton black: Phytomyza archangelicae
5b backward-directed arm of cephalic skeleton brown: Phytomyza angelicastri
6a primary blotch without a hint of an initial corridor; usually several larvae in a mine: Phytomyza angelicae **
6b corridor mine: Phytomyza pastinacae
** there is a possibility that also Phytomyza sitchensis could be found on this host plant.
Not included in the key: Cnephasia asseclana.