Corrigiola strapwort
Dichotomous table for leafminers
1a Blotch, with powdery, dark green frass: Scaptomyza graminum
1b galls, etc. => Tables for all parasites per species
1a Blotch, with powdery, dark green frass: Scaptomyza graminum
1b galls, etc. => Tables for all parasites per species