Cephalaria cephalaria, giant scabious
(For a dichotomous table for galls on Cephalaria by Hans Roskam click here)Dichotomous table for leafminers
1a lower-surface tentiform mine: Phyllonorycter cephalariae
1b (usually, largely) upper-surface corridor => 2
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a lower-surface tentiform mine: Phyllonorycter cephalariae
1b (usually, largely) upper-surface corridor => 2
1c galls, etc => Tables for all parasites per species
2a corridor pinnately branched, main axis on top of the midrib; pupation external: Liriomyza strigata
2b corridor irregularly branched, without association with the midrib; pupation within the mine, in a, generally lower-surface, pupal chamber: Chromatomyia horticola