Downy emerald

Cordulia aenea

The downy emerald is a species of dragonfly. It is metallic green and bronze in color, and its thorax is coated with fine hairs, hence its name. Like most other emeralds, the downy emerald has bright shiny green eyes. Adults are around 5 cm in length, and are in flight from May through July each year.
Cordulia aenea - Downy Full lady here:
https://www.jungledragon.com/image/94698/cordulia_aenea_-_female.html Anisoptera,Cordulia,Cordulia aenea,Downy emerald,Dragonfly,Jane's garden,Libelluloidea,Odonata,nl: Smaragdlibel

Behavior

After the downy emerald young emerge from their eggs, they live for three years at various larval and nymphal stages. They are fully grown adults for only two months, during which time they mate and the females deposit their eggs back into the water.
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 Anisoptera,Cordulia,Cordulia aenea,Corduliidae,Downy Emerald,Downy emerald,Emerald,Finland,Geotagged,Libellulidae,Lieksa,Odonata,Pohjois-Karjala,Scandinavia,Spring,dragonfly,insect,male,summer

Habitat

This species lives in woodlands near lakes and ponds; like other dragonflies, it lays eggs in water and its larvae are aquatic. It is distributed throughout most of Europe. Although it has been eliminated from some of its historic native area in Great Britain due to habitat loss, dense populations of the downy emerald can still be found there in spots where its ideal habitat remains.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderOdonata
FamilyCorduliidae
GenusCordulia
SpeciesC. aenea