Ischnura elegans is the scientific name of a dragonfly (odonato) European with the abdomen for the most part black in the one that emphasizes the intense sky blue color of the eighth segment. It is a question of a delicate insect, of slender body. His four wings, two previous ones and two later ones, are membranous, furrowed by a complicated veins network, and they stay supported on the body when the insect is in rest. It possesses big formed eyes, in turn, for more than 20.000 cocksure or small "lenses" that provide a visual field to him of approximately 270th.
The dragonflies deposit his eggs in the water, sometimes in the submerged vegetation, where the nymphs are born. These are carnivorous and they eat larvae of mosquitoes and other aquatic organisms.
Also known like dragonflies, these dragonflies have always had bad reputation in Occident. In Japan, nevertheless, these insects are venerated like mythological beings who symbolize the value, the force and the happiness.