Common Hawker Aeshna juncea

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Length

74mm, Wings 95mm.

Males

Thorax top is black , narrow yellow antehumeral stripes and sides are brown with 2 narrow yellow thoracic stripes; abdomen black with pairs of yellow and blue spots including segments 9 and 10; legs black; wings have brilliant yellow costa.

22082009-comhaw-male-skipwith-paulashton

 

Females

Thorax brown; abdomen brown with paired yellow spots, sometimes green, rarely blue. Leading edge of the wing yellow.

23072010-comhaw-female-skipwith-paulashton

 

Gallery

Common Hawker Gallery

Habitat

Prefers acidic conditions, consisting of bog pools, ponds and lake margins on moorland and heathland. Will also use slow-flowing sections of upland streams. Requires areas of emergent vegetation to breed.

Behavior

Males are territorial, regularly chasing off intruders of any species. They are relentless flyers and can often be found active in dull conditions. Copulation takes from 60-75 minutes, with pairs usually settling amongst the heather, shrubs or trees. The female oviposits alone, inserting the eggs into submerged vegetation. Oviposition may take place in dull weather, when the first sign of activity is the sound of rustling wings in low vegetation. Larvae develop over a period of two or more years amongst the submerged vegetation. They emerge, usually at night, on emergent plant stems. They regularly wander away from breeding sites to feed in sheltered areas, such as woodland rides.

Flight Period

Locations
Distribution Map

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