Dragonfly Resting Near The Pond
by Kerri Farley
Title
Dragonfly Resting Near The Pond
Artist
Kerri Farley
Medium
Photograph - Photography
Description
A dragonfly is an insect belonging to the order Odonata, suborder Anisoptera (from Greek ανισος anisos "uneven" + πτερος pteros, "wings", because the hindwing is broader than the forewing). Adult dragonflies are characterized by large multifaceted eyes, two pairs of strong transparent wings, sometimes with coloured patches, and an elongated body. Dragonflies can be mistaken for the related group, damselflies (Zygoptera), which are similar in structure though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold the wings folded at rest, along or above the abdomen. Dragonflies are agile fliers while damselflies have a weaker, fluttery flight. Many dragonflies have brilliant iridescent or metallic colours produced by structural coloration, making them conspicuous in flight.
Fossils of very large dragonfly ancestors in the Protodonata are found from 325 million years ago in Upper Carboniferous rocks; these had wingspans of up to 750 mm. There are about 3000 species of Anisoptera in the world today. Most are tropical, with fewer species in temperate regions.
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Uploaded
May 10th, 2017
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