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Dragonflies having simple flaps shed the eggs in water, mostly in flight. Dragonflies having ovipositors use them to puncture soft tissues of plants and place the eggs singly in each puncture they make. [32] [34] [35] [36] Dragonfly nymphs vary in form with species, and are loosely classed into claspers, sprawlers, hiders, and burrowers. [17]
Common worldwide or nearly worldwide genera are Aeshna and Anax. Anax includes some of the largest dragonflies, including the North American A. walsinghami, Hawaiian A. strenuus, European A. imperator and A. immaculifrons, and African A. tristis, but these are all exceeded by another member of the family, the Asian Tetracanthagyna plagiata, which by wingspan and weight is the world's largest ...
The females trap air bubbles with hairs along their bodies to allow them to reach the bottom of the water and deposit eggs into the substrate. [10] Males are remarkably territorial and their territorial behavior varies based on the oviposition of the females. [8] Cordulegastridae nymph buried in substrate
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 larvae live primarily in stream banks, mostly in burrows, but the larvae of the eastern US species, Tachopteryx thoreyi, the gray petaltail, live in depressions under wet leaves. [4] The semiaquatic habitat of the larvae makes the petaltails unique in the modern dragonfly families.
The insect family Macromiidae contains the dragonfly species known as cruisers or skimmers.They tend to fly over bodies of water (and roads) straight down the middle. They are similar to Aeshnidae in size, but the eyes are green and just barely meet at the top of the head.
A dragonfly finds a place to rest and escape the mid-day sun near Phinizy Swamp on Friday afternoon, June 10, 2011. Dragonflies subsist on a diet of other insects including gnats, mosquitos and ...
The Hine's emerald (Somatochlora hineana) is an endangered dragonfly species found in the United States and Canada. [4] Populations exist in Illinois, Michigan, Missouri, Ontario, and Wisconsin. [1] Larvae are found in shallow, flowing water in fens and marshes, and often use crayfish burrows. [5]
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