![Aeshna caerulea](https://upload.wikimedia.org/wikipedia/commons/a/a0/Aeshna_caerulea.jpg)
The azure hawker (''Aeshna caerulea'') is one of the smaller species of hawker
dragonflies
A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of true dragonfly are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threa ...
, (family
Aeshnidae
The Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies. The family includes the largest dragonflies found in North America and Europe
Europe is a large peninsula conventionally considered a continent in its o ...
). The flight period is from late May to August
It is about 62 mm long. Both sexes have
azure blue spots on each abdominal segment and the thorax also has azure markings. The markings on the male are brighter and more conspicuous than in the female. The female also has a brown colour form.
[
This species flies in sunshine, and will also bask on stones or tree trunks. It shelters in heather or similar low vegetation in dull weather. Unique to this species is that the blue of the male pales to a more grey colour at lower temperatures.]
The species is widespread in the Eurasia
Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago a ...
n polar region
The polar regions, also called the frigid geographical zone, zones or polar zones, of Earth are the regions of the planet that surround its geographical poles (the North Pole, North and South Poles), lying within the polar circles. These high l ...
. In Great Britain
Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...
, the azure hawker occurs only in Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the ...
.
References
External links
British Insects: Odonata
Aeshnidae
Dragonflies of Europe
Insects described in 1783
Taxa named by Hans Strøm
{{Aeshnidae-stub