1a larve geel, achterspiraculum met 3 papillen; puparium buiten de mijn gevormd; frass in kleine korrels: Liriomyza flaveola

1b larve wittig, achterspiraculum met ca. 10 papillen; puparium in de mijn; frass in grove, wijd uiteenliggende korrels: Chromatomyia nigra

1a larva yellow, rear spiraculum with 3 papillae; pupation outside the mine; frass in small granules: Liriomyza flaveola

1b larva whitish, rear spiraculum with ca. 10 papillae; pupation within the mine; frass in coarse, well-spaced grains: Chromatomyia nigra