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The bright red waisted and then clubbed abdomen and the uniformly coloured thorax suggest a male Ruddy Darter. You cannot see enough detail in the image to see the all black legs which are characteristic of this species.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
Lat/Lng: 52.6, 1.6
OS grid ref: TG4706