Rhinanthus yellow rattle
(For a dichotomous table for galls on Rhinanthus by Hans Roskam click here)
Dichotomous table for leafminers
1a short corridor, that seems to vanish into a thick vein; the larva (a maggot) then starts living as a stem borer: Phytomyza rostrata
1b a blotch, or corridor widening into a blotch; larva with chitinised head: Apteropeda orbiculata
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a short corridor, that seems to vanish into a thick vein; the larva (a maggot) then starts living as a stem borer: Phytomyza rostrata
1b a blotch, or corridor widening into a blotch; larva with chitinised head: Apteropeda orbiculata
1c galls, etc => Tables for all parasites per species