Cordulia Aenea (Downy Emerald)
- 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.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 britian 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.
Aeshna Cyanea (Southen hawker)
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 Ireland. It is also found in Northwest Africa Algeria. In Central Europe the species is very common
It is large, with a long body. It has green markings on the black bodies, and the male also has blue spots on the abdomen.
The southern hawker breeds in still or slow-flowing water, but will wander widely, and is often seen in gardens and open woodland. This is an inquisitive species and will approach people.
The adult eats various insects caught on the wing. The nymphs feed on aquatic insects, tadpoles and small fish ambushed in the pond they frequent until they emerge as adults in July and August after three years’ development.