1 > Leaf-miner: Larvae
either singly or several in leaf, then forming large blotch-mine,
feeding first up and then down the leaf. Pupation external (Spencer,
1976: 119).
Shallow
upper-surface corridor, without full-depth sections, starting high
in the leaf. Initially the corridor runs up, but soon it changes
direction, quickly widening. In Deschampsia generally one
mine per leaf, occupying its entire width; in Glyceria there
mostly are serveral mines that merge in the end. Pupation outside
the mine; the puparium often sticks to the leaf.
Puparium black or dark red |