The Norfolk hawkerAeshna isosceles is an extremely rare dragonfly, one of two species of brown hawkers in Britain. It has a yellow triangular mark on the second abdominal segment which gave rise to its scientific name. It also has green eyes and clear, untinted wings. It is mainly a Mediterranean species, at home in the lowlands of North Africa and Southern Europe.
In Britain, the Norfolk hawker is protected under Schedule 5 of the Wildlife and Countryside Act 1981, and listed in Category 1 (endangered) in the British Red Data Books on Insects.
The Norfolk hawker needs unspoiled grazing marsh dykes, clean non-saline water, rushy margins, and lots of aquatic plants, especially Water soldierStratoides aloides.
The NorfolkhawkerAeshna isosceles is an extremely rare dragonfly, one of two species of brown hawkers in Britain.
In Britain, the Norfolkhawker is protected under Schedule 5 of the Wildlife and Countryside Act 1981, and listed in Category 1 (endangered) in the British Red Data Books on Insects.
in the Broadlands of Norfolk and Northeast Suffolk
The NorfolkHawker is characteristically a species of fen and grazing marsh dyke systems in Broadlands where it exploits unpolluted ditches and dykes, (fig.
NorfolkHawkers usually begin to emerge in late May and they are on the wing until mid August.
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