Indian Meal Moth Plodia interpunctella
Wingspan 14-20 mm.
This pyralid moth is a cosmopolitan and common pest species found frequently in food warehouses. Its larvae feed on cereals, grains, dried fruits, nuts and dried insect remains. It spins a silken web amongst the foodstuff.
The adults emerge throughout June to early September. In heated warehouses, this may be in overlapping broods and may continue through the autumn.