Angoumois Grain Moth

Scientific name: Sitotroga cerealella.
Angoumois grain moths attack several grains. This moth species is mainly associated with ear corn, and it's rare in shelled corn. 

This insect is a primarily stored grain pest because its caterpillar stages develop entirely within a grain kernel. The infested grain, therefore, loses its economic worth. In addition to this, it causes an unpleasant smell, so animals may refuse to eat it and reduce its consumption.