Downy Emerald (Cordulia aenea), Finland

This male Downy Emerald has been photographed a couple of years ago in Lieksa, eastern Finland.

"The Downy Emerald (Cordulia aenea) is the only species of its genus in Europe. It's a relatively common species in Central and Northern Europe, but very rare in the British Isles, Northern Sweden and Norway, and the Mediterranean basin.

Downy Emerald's distinguishing features include the bronze (rather than green-metallic) colour of the abdomen, the dark yellow patches at the wing bases, the male's clubbed abdomen (broadest at S7-8), the large white patch on the underside of the female's S3, and the absence of the long vulvar scale typical of the female Brilliant (or Balkan) Emerald."

http://www.dragonflypix.com/speciespages_fi/cordulia_aenea.html