Anaciaeshna isosceles (Norfolk hawker)

This dragonfly has been scarce and local in Britain since records began. It is categorised as endangered in Britain and is listed in schedule 5 of the Wildlife and Countryside Act 1981.

Until recently, it was restricted to the Norfolk Broads area, but it now also breeds further south in Suffolk including along parts of the coast, and in the last few years has become established at sites in Cambridgeshire and Kent.

It is also found in parts of mainland Europe and Africa.

The name Anaciaeshna isoceles relates to a distinctive triangular marking near the base of the dragonfly’s abdomen.

Species detail

  • Anaciaeshna isosceles
    Taxonomy

    Find out how Anaciaeshna isosceles, the Norfolk hawker dragonfly, can be distinguished from its close relative Aeshna grandis, the brown hawker.

  • Anaciaeshna isosceles
    Distribution and ecology

    This dragonfly is found throughout central and southern Europe but only in localised areas in northern Europe. It has also been found in North Africa.

  • Norfolk hawker, Strumshaw Fen RSPB reserve
    Conservation

    The habitat of the Norfolk hawker is being maintained in nature reserves in Suffolk and Norfolk.

Images

Anaciaeshna isosceles, the Norfolk hawker dragonfly

Anaciaeshna isosceles, the Norfolk hawker dragonfly.

© R Norton and D Allen
Anaciaeshna isosceles

Anaciaeshna isosceles, Norfolk hawker, Strumshaw Fen RSPB reserve.

©  K Goodger
Anaciaeshna isosceles

Anaciaeshna isosceles, Norfolk hawker, Strumshaw Fen RSPB reserve.

©  K Goodger
Anaciaeshna isosceles

Anaciaeshna isosceles, the Norfolk hawker dragonfly.

© R Jurecek
Author

David Goodger
Former curator of Odonata and Small Orders, Life Sciences Department

Updates by Steve Brooks, entomologist, Life Sciences Department

A word from the author

'This is a very beautiful insect and well worth making the effort to see.'

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