Benzoquinone
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Brachinus puberulus
Brachinus puberulus is a species of bombardier beetle in the family Carabidae, described by Chaudoir in 1868. It belongs to the genus Brachinus, renowned for its chemical defense mechanism that produces a hot, noxious spray from the abdomen when disturbed. The species is recorded from the United States and Middle America, though specific details about its biology and ecology remain sparse in the available literature.