Larvae:
Larvae are a white “curl grub” up to 4.0 mm long. They can move quite rapidly.
Adults:
Adults are a brown, oval beetle, 2.0-3.5 mm long, with a serrated antennae.
Can be confused with the drugstore beetle, but the antennae on the drugstore beetle has a distinctive 3-clubbed appearance. Also, the elytra (wing covers) of the cigarette beetle have a smooth appearance whereas the drugstore beetle has a lined appearance with rows of pits running the length of the wing covers.