If noticed, empty the bin as soon as possible. There are sawtooth projections coming off of the thorax. Tenebrionidae Tenebrio spp. Larvae feed and molt until winter. Wing tips are reddish-brown, rest of wings are light gray or yellow.
Adults is small and reddish-brown in color.
Foreign Grain Beetle Damge Larvae and adults feed primarily on the mold growing on grains. Curculionidae Sitophilus spp. Adults vary in color from dull red to black.