Doronicum leopard’s-bane
Dichotomous table for leafminers
1a mine full depth; larva with well recognisable head => 2
1b mine uper and/or lower-surface; larva a virtually headless maggot => 5
1c galls, etc => Tables for all parasites per species
2a larva without feet; glassy => 3
2b larva with distinct feet; not transparent => 4
3a older larvae live free, causing window feeding: Phytosciara halterata
3b larve mine life long: Phytosciara macrotricha.
4a mine small; older larvae live free, among spun leaves; larvaL head brown: Cnephasia stephensiana
4b mine large; larve mines life long; head black: Agonopterix senecionis
5a mine narrow or wide, positioned over the midrib => 6
5b rather narrow corridor, not associated with the midrib => 7
6a wide brownish corridor; primary and secondary feeding lines conspicuous; most frass in discrete grains: Trypeta zoe
6b corridor rather narrow, whitish; no apparent feeding lines; frass in strings: Liriomyza strigata
7a puparium in the mine, in a, usually lower-surface, pupal chamber: Chromatomyia cf. syngenesiae
7b pupation after the larva has left the mine (through a semicircular exit slit) => 8
8a mountain species; larva: rear spiraculum with c. 19 papillae: Phytomyza aronici
8b lowland species; rear spiraculum with c. 28 papillae: Phytomyza doronici