any of various ground beetles (esp. genus Brachinus) that protect themselves by discharging an irritating fluid that vaporizes with a popping sound on contact with the air
Any of various carabid beetles of the subfamily Brachininae that eject a hot, acrid spray from the abdomen when disturbed, making a popping sound.
(plural bombardier beetles)
- A beetle whose defence mechanism enables it to eject a hot aqueous mixture of chemicals at predators. They come from a number of subfamilies: Carabinae (e.g., Brachinus crepitans), Metriinae (e.g., Stenaptinus insignis) and Paussinae (e.g., Goniotropis nicaraguensis).