Downy emerald

The downy emerald (Cordulia aenea) 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.

Downy emerald
male, Estonia
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Odonata
Suborder:
Anisoptera
Family:
Corduliidae
Genus:
Cordulia
Species:
C. aenea
Binomial name
Cordulia aenea

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.

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 pictures in nature photographer Janne Heimonen's photo gallery
  • "Downy Emerald". British Dragonfly Society. Retrieved 27 May 2011.


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