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Epiophlebia
The genus ''Epiophlebia'' is the sole member of the family Epiophlebiidae, which is itself the sole living representative of the Epiproctan infraorder Epiophlebioptera, and it contains only three species. The first two species were historically placed in their own suborder Anisozygoptera, considered intermediate between dragonflies and damselflies, mainly because the hind wings are very similar in size and shape to the forewings and held back over the body at rest, as in damselflies. It has more recently been recognized that the genus ''Epiophlebia'' shares a more recent ancestor with dragonflies (having become separated from these in and around the uplifting of the Himalayas), and the group has accordingly been reclassified as an infraorder within the dragonflies. Very recently a third species, ''Epiophlebia sinensis'', has been described from Heilongjiang province in northeast China, bridging ''Epiophlebia'' distribution gap between Nepal and Japan. A fourth species has been clai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiophlebia Superstes
''Epiophlebia superstes'', the Japanese relict dragonfly, is one of the four species of the genus '' Epiophlebia'', belonging to the family Epiophlebiidae, which is itself the sole living representative of the epiproctan infraorder Epiophlebioptera. Distribution and habitat This species of dragonfly is native to Japan, distributing widely around the forested headwaters of rivers in its four main islands, serving as a freshwater indicator of ecosystem health. With the adults being adapted for flight in these cool habitats, and the larvae to exploit the stable environment and detritus based ecosystems of high elevation spring-fed seeps and streams. Its flight period lasts about one month in length, but varies significantly through the diverse altitudes and latitudes of Japan, extending from late March in Kyushu to July in Hokkaido, for example, in the Kinki area, the flight period of ''E. superstes'' extends from the end of April to mid-June. Phylogeny and evolutionary history ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiophlebia Sinensis
The genus ''Epiophlebia'' is the sole member of the family Epiophlebiidae, which is itself the sole living representative of the Epiproctan infraorder Epiophlebioptera, and it contains only three species. The first two species were historically placed in their own suborder Anisozygoptera, considered intermediate between dragonflies and damselflies, mainly because the hind wings are very similar in size and shape to the forewings and held back over the body at rest, as in damselflies. It has more recently been recognized that the genus ''Epiophlebia'' shares a more recent ancestor with dragonflies (having become separated from these in and around the uplifting of the Himalayas), and the group has accordingly been reclassified as an infraorder within the dragonflies. Very recently a third species, '' Epiophlebia sinensis'', has been described from Heilongjiang province in northeast China, bridging ''Epiophlebia'' distribution gap between Nepal and Japan. A fourth species has been cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiophlebia Diana
The genus ''Epiophlebia'' is the sole member of the family Epiophlebiidae, which is itself the sole living representative of the Epiproctan infraorder Epiophlebioptera, and it contains only three species. The first two species were historically placed in their own suborder Anisozygoptera, considered intermediate between dragonflies and damselflies, mainly because the hind wings are very similar in size and shape to the forewings and held back over the body at rest, as in damselflies. It has more recently been recognized that the genus ''Epiophlebia'' shares a more recent ancestor with dragonflies (having become separated from these in and around the uplifting of the Himalayas), and the group has accordingly been reclassified as an infraorder within the dragonflies. Very recently a third species, '' Epiophlebia sinensis'', has been described from Heilongjiang province in northeast China, bridging ''Epiophlebia'' distribution gap between Nepal and Japan. A fourth species has been cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiophlebia Laidlawi
''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 over the body as damselflies do. These attributes now are known to be misleading however; the genus '' Epiophlebia'' shares a more recent ancestor with dragonflies and became separated from other Anisoptera in and around the uplifting Himalayas. The species was first described from a larva collected in June 1918 by Stanley Kemp in a stream just above Sonada in the vicinity of Darjeeling. It was identified as an ''Epiophlebia'' by Dr. F. F. Laidlaw of Devon who dissected the wing sheaths of the specimen and his identification was endorsed by R.J. Tillyard, who described and gave it t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dragonflies
A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of true dragonfly are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threatens dragonfly populations around the world. Adult dragonflies are characterized by a pair of large, multifaceted compound eyes, two pairs of strong, transparent wings, sometimes with coloured patches, and an elongated body. Many dragonflies have brilliant iridescent or metallic colours produced by structural colouration, making them conspicuous in flight. An adult dragonfly's compound eyes have nearly 24,000 ommatidia each. Dragonflies can be mistaken for the closely related damselflies, which make up the other odonatan infraorder ( Zygoptera) and are similar in body plan though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold their wings folded at rest, along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarsophlebiidae
The Tarsophlebiidae is an extinct family of medium-sized fossil odonates from the Upper Jurassic and Lower Cretaceous period of Eurasia. They are either the most basal member of the damsel-dragonfly grade ("anisozygopteres") within the stem group of Anisoptera, or the sister group of all Recent odonates. They are characterized by the basally open discoidal cell in both pairs of wings, very long legs, paddle-shaped male cerci, and a hypertrophied ovipositor in females. Description Adult Body The head is similar to that of Recent Gomphidae with two large and globular compound eyes that are distinctly separated, but closer together than in damselflies ( Zygoptera). There are also two cephalic sutures. The pterothorax seems to be even more strongly skewed than in damselflies. The legs are extremely long with short and strong spines, and with very elongate tarsi. There are three tarsal segments ( tarsomeres), of which the most basal one is twice as long as the others. The pair of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarsophlebioptera
The Tarsophlebiidae is an extinct family of medium-sized fossil odonates from the Upper Jurassic and Lower Cretaceous period of Eurasia. They are either the most basal member of the damsel-dragonfly grade ("anisozygopteres") within the stem group of Anisoptera, or the sister group of all Recent odonates. They are characterized by the basally open discoidal cell in both pairs of wings, very long legs, paddle-shaped male cerci, and a hypertrophied ovipositor in females. Description Adult Body The head is similar to that of Recent Gomphidae with two large and globular compound eyes that are distinctly separated, but closer together than in damselflies ( Zygoptera). There are also two cephalic sutures. The pterothorax seems to be even more strongly skewed than in damselflies. The legs are extremely long with short and strong spines, and with very elongate tarsi. There are three tarsal segments (tarsomeres), of which the most basal one is twice as long as the others. The pair of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
