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Dragonfly nymphs vary in form with species, and are loosely classed into claspers, sprawlers, hiders, and burrowers. [17] The first instar is known as a prolarva, a relatively inactive stage from which it quickly moults into the more active nymphal form. [37]
Odonata is an order of predatory flying insects that includes the dragonflies and damselflies (as well as the Epiophlebia damsel-dragonflies). The two major groups are distinguished with dragonflies (Anisoptera) usually being bulkier with large compound eyes together and wings spread up or out at rest, while damselflies (suborder Zygoptera) are usually more slender with eyes placed apart and ...
The emperor dragonfly [2] or blue emperor [1] (Anax imperator) is a large species of hawker dragonfly of the family Aeshnidae. It is the largest dragonfly in most of Europe, including the United Kingdom, [ 2 ] although exceeded in some areas by other species.
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Madagascar emperor male A. tumorifer. Anax (from Ancient Greek ἄναξ anax, "lord, master, king") [2] is a genus of dragonflies in the family Aeshnidae.It includes species such as the emperor dragonfly, Anax imperator.
The golden-ringed dragonfly (Cordulegaster boltonii) is a large, striking species of dragonfly found widely in Europe and locally in northwestern Africa, especially near flowing waters like streams. [1] It is the longest British species of dragonfly, [2] and the only member of its genus to be found in the United Kingdom. [3]
Gomphus flavipes a fossil of a G. tuberculatus of Brazil in the Naturhistorisches Museum (Vienna). Gomphus is a genus of clubtail dragonflies in the family Gomphidae.. As a result of phylogenetic studies, Gomphus subgenera Gomphurus, Hylogomphus, Phanogomphus, and Stenogomphurus were elevated in rank to genus in 2017.
Australian emperor laying eggs, guarded by the male in tandem position. The Australian emperor is notable as the dragonfly in which motion camouflage was studied by Mizutani et al.: males of Anax papuensis are fiercely territorial, and approach and attack rivals, the males choose a flight path that keeps their image as seen by the target still with respect to a landmark point.