No, not that one.
This one: “This beetle’s butt is basically a machine gun”
And the article, at the Washington Post backs up the bluster. The lede:
Ever heard of the bombardier beetle? It’s aptly named: When threatened, the beetle doesn’t just excrete deadly chemicals. It actually mixes them up in an internal chamber, then fires the reaction off as a near-boiling, high-speed spray from its rear end. Now researchers have figured out how the beetles manage to aim and fire these noxious rounds at enemies.
Bonus, there’s a University of Arizona connection. They research the serious stuff.