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Libellula quadrimaculata, known in Europe as the four-spotted chaser and in North America as the four-spotted skimmer, is a dragonfly of the family Libellulidae found widely throughout Europe, Asia, and North America. The adult stage is found between April and early September in the United Kingdom, and from mid-May to mid-August in Ireland.
Dragonfly vision is thought to be like slow motion for humans. Dragonflies see faster than humans do; they see around 200 images per second. [ 80 ] A dragonfly can see in 360 degrees, and nearly 80 per cent of the insect's brain is dedicated to its sight.
Sympetrum costiferum, the saffron-winged meadowhawk, is a dragonfly of the genus Sympetrum. It is found across northern and central United States and most of Canada, including a southern portion of the Northwest Territories. Its abdomen is yellowish-brown, turning pale red at maturity in both sexes.
The green darner is a large dragonfly; males grow to 76 mm (3.0 in) in length with a wingspan up to 80 mm (3.1 in). [9] [10] Females oviposit in aquatic vegetation, eggs laid beneath the water surface. Nymphs (naiads) are aquatic carnivores, feeding on insects, tadpoles, and small fish.
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 chasers, darters, skimmers, and perchers and their relatives form the Libellulidae, the largest family of dragonflies. [2] It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae.
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 American emerald (Cordulia shurtleffii) is a species of dragonfly found in North America. It is colored mostly black with a yellow ring between segments 2 and 3. It is colored mostly black with a yellow ring between segments 2 and 3.
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