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The petaltails of the family Petaluridae are among the most ancient of the extant true dragonflies (infraorder Anisoptera), [2] having fossil members from as early as the Jurassic, over 150 million years ago.
Epiophlebia laidlawi, the Himalayan relict dragonfly, is one of four species of Epiprocta in the family Epiophlebiidae.They have at one time been classified as a suborder Anisozygoptera, considered as intermediate between the dragonflies and the damselflies, partly because the hind wings and fore wings are very similar in size and shape, and partly because the insect at rest holds them back ...
This is a small dragonfly, with a length of 30 to 35 mm (1.2 to 1.4 in). The wings are mostly clear but have a small patch of yellowish to orange clouding at the base of each hindwing. Mature males are brownish black on the face and thorax and have a red abdomen, while immature males have a yellow thorax and a yellowish brown abdomen.
Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is most commonly used to pass through winter months – called overwintering.
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. [81]
The eastern amberwing (Perithemis tenera) is a species of dragonfly in the family Libellulidae. It is very small, reaching a total length of no more than 25 millimetres (0.98 in). The males have orange or amber wings. Both sexes have a red pterostigma. [5] The eastern amberwing dragonfly is one of the only types of dragonfly that actively ...
Sympetrum commixtum, Nepal Sympetrum vicinum mating. Sympetrum is a genus of small to medium-sized skimmer dragonflies, known as darters in the UK and as meadowhawks in North America.
Pantala flavescens, [3] the globe skimmer, globe wanderer or wandering glider, [1] is a wide-ranging dragonfly of the family Libellulidae. [1] This species and Pantala hymenaea, the "spot-winged glider", are the only members of the genus Pantala.