1 > Leaf-miner: A
linear-blotch mine, often with several mines occurring in the same
leaf (Spencer, 1976: 167,
fig. 305).
A
short, mostly upper-surface, rarely partly lower-surface corridor
leads to a large, upper-surface, primary blotch. The mine initially
is pale, turns brown later. Frass in sizeable dispersed grains.
Pupation outside the mine; the larva leaves the mine through a semicircular
exit slit in the upper epidermis.
Upper surface variable mine, from a short gallery leading to a large, roundish blotch to a long gallery leading to an elongated blotch. |