Ground beetle (Brachinus crepitans)


Brochinus crepitans

Brochinus crepitans

Is a species of ground beetle in the Brachininae subfamily that can be found almost
everywhere in Europe.
Majority of species are 6.5–9.5 millimeters (0.26–0.37 in) in length.
When disturbed, the species shoot liquid from two glands through their anus.
Since one of the glands contains hydrogen peroxide and the other hydroquinone,
when two the contents mix with enzymes in a “firing chamber”, the liquid explodes,
and harms the attackers.

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