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Norfolk Hawker

(Anaciaeschna isoceles)

The rare Norfolk Hawker is a pale brown dragonfly, with a distinctive yellow triangle on its body. Until recently, it was only found in Norfolk and Suffolk, although its range has started to expand and it is rapidly colonising Sussex.

©Danny Green/2020VISION
Norfolk Hawker
©Danny Green/2020VISION
Norfolk Hawker
©Danny Green/2020VISION
Norfolk Hawker

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Overview

Norfolk Hawkers need unspoilt grazing marsh with non-saline water to survive. Having spent up to two years in the water, mature dragonfly larvae climb on to emerging vegetation at night and moult into adult dragonflies, leaving behind a cast known as an ‘exuviae’. They take another two to three weeks to reach maturity.

Key Facts

  • The Norfolk Hawker is entirely pale brown apart from a yellow triangle at the base of the body. It is similar to the larger Brown Hawker, but paler in colour, with green eyes and clear wings.
  • Dragonflies are able to fly at speeds of up to 36km per hour, move their wings approximately 30 times a second, and fly forwards, sideways and backwards.
  • Length: 6.7cm

Status

Protected in the UK under the Wildlife and Countryside Act, 1981. Priority Species under the UK Post-2010 Biodiversity Framework.

Seasonality

June to July

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