Golden-ringed dragonfly

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The golden-ringed dragonfly (Cordulegaster boltonii) is a large, striking species of dragonfly found widely in Europe and locally in northwestern Africa, especially near flowing waters like streams.[1] It is the longest British species of dragonfly,[2] and the only member of its genus to be found in the United Kingdom.[3]

Identification

In the United Kingdom, they are easily identified by their distinctive black and yellow stripes, which is not found in any other dragonfly in the country.[4] A very large species, males average Template:Cvt and the longer females average Template:Cvt. Wingspan is up to Template:Cvt.[5] The female is the longest British dragonfly, in part due to the unusually long ovipositor,[2] and in other measurements it is exceeded by the emperor (Anax imperator).[6]

Larvae

The female lays the eggs in shallow water. The hairy larvae live at the bottom of the water and are well camouflaged amongst the silt.[7] They emerge after about 2–5 years, and usually under the cover of darkness.

Behaviour

They are often seen flying leisurely over mountain streams or a river; they also occasionally show up at a pond. They are also typically seen flying over heath land. Their bright yellow and black stripes make them easy to identify, even from a fair distance away. They feed mainly on insects ranging from small prey such as midges to flies, butterflies and even bumblebees. This strikingly-coloured insect is incredibly aerobatic and they sometimes fly very high up into the sky.[8]

See also

References

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External links

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