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Monday, July 04, 2011

British Dragonflies

A recent local report from " a usually reliable source" has caused the equivalent of a twitcher frenzy for a rare migrant bird.

The link shown above gives an impression of a Norfolk Hawker,   Aeshna isoceles,  which whilst reported outside Norfolk is not thought to be present in Somerset.

To try to check for any other sightings  I'm seeking news of any other possible sightings in Somerset. Please contact me if you think you can help
Here is some information about this Dragonfly taken from the Natural History Museum web site.
Aeshna isosceles, Norfolk Hawker. © R Jurecek
This dragonfly is restricted to one area of Britain - the broads district of Norfolk. It has been scarce and local in Britain since records began.
It is now categorised as endangered in Britain and is listed in schedule 5 of the Wildlife and Countryside Act 1981.
In Britain, this endangered species of dragonfly is found only around the Norfolk Broads, but it is also found in other parts of Europe and North Africa. In Norfolk, it prefers to live close to waterways where the water soldier plant - Stratiotes aloides grows. Its name Aeshna isosceles relates to a distinctive triangular marking on its abdomen                                                                                                                                                                    

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