"Odonata is an order of carnivorous insects encompassing the dragonflies (Anisoptera) and the damselflies (Zygoptera). The Odonata form a clade, which has existed since the Permian.
Dragonflies ...
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are generally larger, and perch with their wings held out to the sides; damselflies have slender bodies, and hold their wings over the body at rest." - (en.wikipedia.org 29.09.2019)
