1 > Leaf-miner: A narrow linear mine which may largely fill small leaves and produce
a secondary blotch (Spencer,
1976: 257).
Long,
upper-surface, gradually widening, corridor, in the end often forming
a secondary blotch. The corridor regularly crosses itself. Frass
in irregular grains or short strings. Pupation outside the mine;
exit slit in the lower epidermis.
Forms a narrow upper surface linear mine which may then form a secondary. |