Saving the small things that run the planetSo rare in the UK, that it has only recently been agreed and accepted as a native species. It was thought to be extinct for more than 75 years.
It is one of only two kinds of bombardier beetle found in the UK, the other looks very similar and is called the Common bombardier – although it too is very rare.
The Streaked bombardier has an astonishing party trick, and there’s a clue in its name. If threatened, it can take accurate aim with its flexible abdomen and let fly with a ‘bomb’ of noxious, boiling chemicals (hydroquinones and hydrogen peroxide, since you ask), delivered with an audible, explosive ‘pfut’!
This works well as a deterrent to other insects, much larger predators and nosey humans alike.
The Common and Streaked bombardier beetles have a metallic blue-green wing case (elytra) with a narrow orange-red head and back (thorax), but the Streaked bombardier has a distinctive red dash along its back and measures up to 7.5mm long.
Not much is known about the ecology of Streaked bombardier beetles, although we think that the larvae feed on Amara and Harpalus ground beetles. They favour the eastern Thames area because of its estuarine character and the relatively warm, dry conditions there, because in Britain the beetles are at the northern limit of their natural range.
Like so many species in the Thames area, they depend on the thin soils, rubble and bare ground found in its brownfield sites. Protecting and managing brownfield sites in the Thames area is incredibly important if we want to be sure we can keep this wonderful beetle as part of UK wildlife.
The recent history (or what we know of it) for the Streaked bombardier makes it clear what a precarious existence it has here in the UK:
Buglife continues to monitor the status of the Streaked bombardier research and conserve new colonies.
Out Streaked bombardier beetle project was undertaken with help from People’s Trust for Endangered Species.
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