Their exoskeletons are reddish brown with a shiny and smooth texture.
The larvae have six legs, with two pointy projections toward the caudal end.
Finally, the pupal stage (a cocoon-like form) is usually a white or brownish color.
The beetle life cycle lasts about three years or more, with the larval stage ranging anywhere from 20 to over 100 days, and the pupal stage around eight days.
Beetles usually breed in damaged grain, grain dust, high-moisture wheat kernels and flour.
Home stored product entomology is the study of insects which infest foodstuffs stored in the home.