The southern hawker or blue hawker (Aeshna cyanea) is a 70 millimetres (2.8 in) long species of hawker dragonfly.The species is one of the most common and most widespread dragonflies in Europe. The total range is West Palearctic and covers a large part of Europe (to Scotland and southern Scandinavia in the North to Italy (without the Southwest) and the northern Balkans to the South); the Eastern boundary is formed by the Ural and the West by...