a tiny, brown beetle that 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 member of the monotypic genus Stegobium.
[It] has a worldwide distribution though it is more common in warmer climates.
[...]
[They can] enter a home in bulk items like bird seed, grass seed, or dry pet food, where several generations of beetles can develop unnoticed until some of the adults eventually leave to infest new locations. Telltale signs of infested items are shot-like holes puncturing the outside packaging of food items and pockmarking solid items like crackers and pasta, as well as loose powder at the bottom of storage bags. While adult beetles do not feed, they are adept at chewing holes.
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Melchett: Well I just looked in on my way to the palace to welcome Sir Walter home; I wondered if you cared to accompany me.
Blackadder: I don't think I'll bother, actually; three hours of bluff seaman's talk about picking the weevils out of biscuits and drinking urine is not my idea of a good time.
BBC. Blackadder, season 2: Potato
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Hyacinth: Don't forget the ship's biscuits, dear!
Richard: [sarcastically] and the weevils!
BBC. Keeping Up Appearances: What to Wear when Yachting (1992)