Aquilegia columbine
(For a dichotomous table for galls on Aquilegia by Hans Roskam click here)Dichotomous table for leafminers
1a mine less than 1 cm; the larva, with chitinised head, soon leaves the mine and continues feeding among spun leaves => 2
1b mine larger; the larva, a maggot, mines lifelong => 4
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a mine less than 1 cm; the larva, with chitinised head, soon leaves the mine and continues feeding among spun leaves => 2
1b mine larger; the larva, a maggot, mines lifelong => 4
1c galls, etc => Tables for all parasites per species
2a larva: pinacula colourless (although the basis of the setae is black): Cnephasia incertana
2b pinacula black => 3
3a larva: behind/below the anus a chitinous comb: Cnephasia asseclana
3b no anal comb present: Cnephasia stephensiana
4a pale green corridor: Phytomyza minuscula
4b large blotch, often purple brown: Phytomyza aquilegiae
Not included in the key: Orthochaetes setiger.