Development from egg to adult may take from 28 to 108 days, depending on the temperature. This insect can be found worldwide. It eats wildly and is a major grain pest. Up to 500 eggs per female are laid on the surface or between grains. Larvae are mobile when young, actively eating grains and by-products.
Adults feed and produce large quantity of flour.
They are long-lived and active fliers. It is common in flours and can be found worldwide. Flattened, reddish brown color and parallel sided. Up to 450 eggs per female are randomly laid for various months. Larvae are mobile and prefer to feed on broken grain kernels and residues.