Scientific name: Ephestia kuehniella.
This moth species belongs to the family Pyralidae. As its name suggests, this moth species is a common pest of flour. Although it explicitly infests flour, people also know it as a prevalent pest that targets cereal grains. 

You’ll find these insects in various parts of the world. The adult variants have a wingspan of about 2 to 2.5cm and a length of around 0.9 to 1.2cm. The forewings have a uniform grey color with some dark brown and white marks.