Not injurious to stored grain. Eggs - Up to 100 eggs per female laid on commodities and bags. Adults - Some species are winged and other wingless. These soft bodied insects have no larval state. The young resemble the adults and are smaller and paler in color.
Psocids feed on a wide variety of organic matter, both of animal and plant origin.
They do not actually damage grain, but are troublesome due to their presence.