Golden-ringed dragonfly

Cordulegaster boltonii

The golden-ringed dragonfly is a large, striking dragonfly and the longest British species, the only member of its genus to be found in the United Kingdom.
Cordulegaster boltonii Detail of the eye of a male Cordulegaster boltonii.

Correct EXIF: f/8 | 200mm INV | Flash Cordulegaster boltonii,Golden-ringed Dragonfly,animalia,anisoptera,arthropoda,biodiversity,cordulegastridae,dragonfly,insecta,odonata

Appearance

They are easily identified by their distinctive black and yellow stripes, which no other dragonfly in the United Kingdom has. A very large species, males average 74 mm and the larger females 84 mm. Wingspan is up to 101 mm.
Golden-ringed dragonfly (Cordulegaster boltonii) The Golden-ringed dragonfly is a large, striking dragonfly and the longest British species, the only one of its genus to be found in the United Kingdom.  Resting on a foxglove taken near Coniston water in the Lake District, England. Cordulegaster boltonii,England,Geotagged,Golden-ringed Dragonfly,Summer,United Kingdom,dragonfly,golden-ringed dragonfly

Behavior

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.
Eyes wide open Cordulegater boltonii camouflaged in the vegetation Cordulegaster boltonii,Cordulegater boltonii,Golden-ringed dragonfly

Reproduction

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. They emerge after about 2–5 years, and usually under the cover of darkness.

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderOdonata
FamilyCordulegastridae
GenusCordulegaster
SpeciesC. boltonii