Smyrnium alexanders
Dichotomous table for leafminers
1a mine full depth; larva with chitinised head: Orthochaetes insignis
1b mine upper- or lower-surface, greenish when lighted from behind; larva a maggot => 2
1c gallen etc => Tabellen voor alle parasieten per soort
2a blotch mine, with conspicuous secondary feeding lines: Euleia heraclei
2b long, irregular, corridor; no recognisable feeding lines: Phytomyza smyrnii