Cyperus galingale, umbrella sedge
Dichotomous table for leafminers
Incl. Pycreus flavescens.
1a blotch, descending from the tip of the leave; Canary Islands, Madeira: Cosmopterix attenuatella
1b similar; continental Europe: Cosmopterix crassicervicella
1c galls, etc. => Tables for all parasites per species