Stegobium paniceum

The drugstore beetle , also known as the bread beetle, biscuit beetle, and misnamed as the biscuit weevil , is a tiny, brown beetle. It can be found infesting a wide variety of dried plant products, where it is among the most common non-weevils to be found. It is the only living member of the genus Stegobium. It belongs to the family Ptinidae, which also includes the deathwatch beetle, furniture beetle and cigarette beetle. A notable characteristic of this species is the symbiotic relationship the beetles have with the yeast-like fungus they carry, which are transmitted from female to larvae through the oviduct.