السبت، 24 مايو 2014

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Introduction to order Odonata


Dragonflies and Damselflies

The order Odonata ("toothed ones") includes some of the most ancient and beautiful insects that ever roamed Earth, as well as some of the largest flying invertebrates ever to have lived. Odonata consists of three groups:


a) Anisoptera (which includes dragonflies),

b)Zygoptera (which includes damselflies), and

c) Anisozygoptera (a relict group represented by only two living species. This order is very diverse with about 5000 species, and its members are easy to observe.

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