Saturday, February 06, 2010

The Southern Hawker/Blå Mosaikguldsmed

Aeschna cyanea

The Southern Hakwer/Blå Mosaikguldsmed is one of Denmark's largest and most elegant colourful insects with huge compound eyes. It is also known as the Blue Darner. It is a colossal predator both when nymph and grown-up. Southern Hawker is a fine representative for the dragonflies, which include about 50 species of dragonflies and water nymphs in Denmark.

It is large, with a long body (7-7,5 cm and wing span 9,7-11 cm). It has green markings on the black bodies, and the male also has blue spots on the abdomen.The Southern Hawker breeds in still or slow-flowing water, but will wander widely, and is often seen in gardens and open woodland. This is an inquisitive species and will approach people. The adult eats various insects, caught on the wing. The nymphs feed on aquatic insects, tadpoles and small fish ambushed in the pond they frequent until they emerge as adults in July and August after three years’ development.

photo Vokslev Kalkgrube: grethe bachmann

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