Bombardier Beetles

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Bombardier Beetles

 

(Brachininae), a subfamily of beetles of the family Carabidae. The body of the bombardier beetle is less than 1 cm long. There are 447 species altogether, 97 of which are found in the USSR. A common species in the USSR, Brachinus crepitans, has a red head, red thorax, red legs, and blue-black wing cases. It is 6–10 mm long. In defending itself, a bombardier beetle squirts out from the hind part of its body an acrid liquid secreted by special glands. On contact with the air, this liquid turns into a vapor with a loud crack as if it is exploding (hence the name of the insect). The vapor which forms has an unpleasant odor. In the USSR bombardier beetles are found mostly in the southern regions, where they live under stones, logs, and other objects. The larvae of bombardier beetles develop in the soil and parasitize the pupae of various beetles.

References in periodicals archive ?
When the bombardier beetle is threatened (such as with a bite on the limb) it contracts its collection reservoirs, moving the hydrogen peroxide and hydroquinones into the reaction chamber through the valves.
Additionally, the bombardier beetle has the ability to direct its defensive spray toward its aggressor very accurately.
As discussed, this bombardier beetle has a particularly high accuracy for hitting its intended target.
The protective role of the spray mechanism of the bombardier beetle, Brachynus ballistarius.
Spray mechanism of the most primitive bombardier beetle (Metrius contractus).
The chemistry of the bombardier beetle (Coleoptera, Carabidae) IV.
Most bombardier beetles exist in the family Carabidae, and within that family are three subfamilies: Brachinae, Metriinae, and Paussinae (Aneshansley et al.
However, bombardier beetles are able to discharge their spray in as little as 90 milliseconds when sufficiently provoked, thus evading capture by toads (Dean et al.
Forsyth (1972) describes the spray nozzle as a "gaping aperture," at the ninth tergite (a plate of abdominal cuticle), or as a "short membranous tube" in different species of bombardier beetles.
Biochemistry at 100[degrees] C: explosive secretory discharge of bombardier beetles (Brachinus).
Now chemical ecologist Thomas Eisner of Cornell University and his colleagues have discovered that some species of bombardier beetles deliver their defensive spray in trains of millisecond-length pulses, rather than in continuous streams.
Encounters between bombardier beetles and two species of toads (Bufo americanus, B.