Ageratum, flossflower

fam. Asteraceae

1a branching corridor, main and secondary branches overlying midrib and side veins; frass in strings; pupation outside the mine: Liriomyza strigata

1b hardly branching corridor, without association with the leaf venation; frass in discrete grains; pupation within the mine: Chromtomyia cf. syngenesiae

08/12/2014