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Aeshna Shennong
''Aeshna'', or the mosaic darners, is a genus of dragonflies from the family Aeshnidae. Species within this genus are generally known as "hawkers" (Old World) or "darners" ( New World). Description These are relatively large dragonflies. Their thoraces and abdomens are brown in color, with blue or yellow stripes or spots on the thorax, and yellow, blue or green spots on the abdomen. Natalia von Ellenrieder's 2003 paper demonstrated that the Holarctic and Neotropical species placed in this genus did not share a common ancestor, and proposed the latter be placed in the genus ''Rhionaeschna''. The name ''Aeshna'' was coined by the Danish entomologist Fabricius in the 18th century. The name may have resulted from a printer's error in spelling the Greek ''Aechma'', "a spear". The spelling ''Aeschna'' has been intermittently used over a period of time, but is now abandoned for the original name ''Aeshna''. However, derived genus names (such as ''Rhionaeschna'') retain the 's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Hawker
The southern hawker or blue hawker (''Aeshna cyanea'') is a species of hawker dragonfly. Distribution The species is one of the most common and most widespread dragonflies in Europe. The total range is West Palearctic and covers a large part of Europe (to Scotland and southern Scandinavia in the North to Italy (without the Southwest) and the northern Balkans to the South); the Eastern boundary is formed by the Ural and the West by Ireland. It is also found in Northwest Africa (Algeria). In Central Europe the species is very common. Habitat These dragonflies mainly inhabit well-vegetated, small ponds and garden ponds, but they wander widely, and they are often seen in gardens and open woodland. Description ''Aeshna cyanea'' can reach a body length of about , with a wingspan up to .Richard Robinson Askew, The Dragonflies of Europe, Harley Books, 2004, p. 109. It is a large, brightly coloured dragonfly, with a long body. The thorax is brown, with two ante-humeral wide green longit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zosteraeschna
''Zosteraeschna'' is the scientific name of a genus of dragonflies from the family Aeshnidae. These relatively large dragonflies are also known as hawkers. They are dark brown with yellow-green markings; On the abdomens of the males, much of the top of S2 and base of S3 are blue. Species The genus ''Zosteraeschna'' includes the following species: *''Zosteraeschna ellioti'' *''Zosteraeschna minuscula'' *''Zosteraeschna usambarica'' Some authorities treat ''Zosteraeschna usambarica'' as a subspecies of ''Zosteraeschna ellioti ''Zosteraeschna ellioti'', the highland hawker or Elliot's hawker, is a species of dragonfly in the family Aeshnidae. It is found in Ethiopia, Kenya, Malawi, Mozambique, South Africa, Tanzania, Uganda, Zimbabwe, and possibly Burundi. Its natural ...''. References Aeshnidae Anisoptera genera {{Aeshnidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Cyanea
The southern hawker or blue hawker (''Aeshna cyanea'') is a species of hawker dragonfly. Distribution The species is one of the most common and most widespread dragonflies in Europe. The total range is West Palearctic and covers a large part of Europe (to Scotland and southern Scandinavia in the North to Italy (without the Southwest) and the northern Balkans to the South); the Eastern boundary is formed by the Ural and the West by Ireland. It is also found in Northwest Africa (Algeria). In Central Europe the species is very common. Habitat These dragonflies mainly inhabit well-vegetated, small ponds and garden ponds, but they wander widely, and they are often seen in gardens and open woodland. Description ''Aeshna cyanea'' can reach a body length of about , with a wingspan up to .Richard Robinson Askew, The Dragonflies of Europe, Harley Books, 2004, p. 109. It is a large, brightly coloured dragonfly, with a long body. The thorax is brown, with two ante-humeral wide green longit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann August Hagen
Hermann August Hagen (30 May 1817 – 9 November 1893) was a German entomologist who specialised in Neuroptera and Odonata. He had established himself as one of Europe's preeminent entomologists by 1867 when he accepted a position at Harvard University to curate the Museum of Comparative Zoology. In 1870 he became the first entomologist in the United States to hold the formal title, Professor of Entomology. Biography Hagen was born 30 May 1817 in Königsberg, Prussia. He was the son of Anna (Linck) Hagen and Carl Heinrich Hagen. His father was a senior government counselor and a professor of political science at the University of Königsberg and his grandfather, Karl Gottfried Hagen, was a professor of chemistry at the same university.Henshaw (1894) Young Hagen graduated from a gymnasium in 1836 and began to study medicine at the University of Königsberg. His course of studies was greatly influenced by his zoology professor, Martin Heinrich Rathke and together they toured maj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Crenata
''Aeshna crenata'', the Siberian hawker, is a species of dragonfly in the family Aeshnidae. It is found in Belarus, Finland, Latvia, Lithuania, and Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the .... This dragonfly is commonly found on freshwater lakes in forested areas. References Aeshnidae Insects described in 1856 Odonata of Europe Taxa named by Hermann August Hagen Taxonomy articles created by Polbot {{Aeshnidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Constricta
''Aeshna constricta'', the lance-tipped darner, is a species of darner in the dragonfly family Aeshnidae The Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies. The family includes the largest dragonflies found in North America and Europe and among the largest dragonflies on the planet. Description Common worldwide or .... It is found in North America. The IUCN conservation status of ''Aeshna constricta'' is "LC", least concern, with no immediate threat to the species' survival. The population is stable. The IUCN status was reviewed in 2017. References Further reading * External links * Aeshnidae Articles created by Qbugbot Insects described in 1840 {{Aeshnidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Say
Thomas Say (June 27, 1787 – October 10, 1834) was an American entomologist, conchologist, and Herpetology, herpetologist. His studies of insects and shells, numerous contributions to scientific journals, and scientific expeditions to Florida, Georgia, the Rocky Mountains, Mexico, and elsewhere made him an internationally known naturalist. Say has been called the father of American descriptive entomology and American conchology. He served as librarian for the Academy of Natural Sciences of Philadelphia, curator at the American Philosophical Society (elected in 1817), and professor of natural history at the University of Pennsylvania. Early life and education Born in Philadelphia into a prominent Religious Society of Friends, Quaker family, Thomas Say was the great-grandson of John Bartram, and the great-nephew of William Bartram. His father, Dr. Benjamin Say, was brother-in-law to another Bartram son, Moses Bartram. The Say family had a house, "The Cliffs" at Gray's Ferry Bridge, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Clepsydra
''Aeshna clepsydra'', the mottled darner, is a species of darner in the dragonfly family Aeshnidae The Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies. The family includes the largest dragonflies found in North America and Europe and among the largest dragonflies on the planet. Description Common worldwide or .... It is found in North America. The IUCN conservation status of ''Aeshna clepsydra'' is "LC", least concern, with no immediate threat to the species' survival. The population is stable. The IUCN status was reviewed in 2017. References Further reading * Aeshnidae Articles created by Qbugbot Insects described in 1839 {{Aeshnidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Canadensis
''Aeshna canadensis'', the Canada darner, is a species of dragonfly in the family Aeshnidae. It is common throughout southern Canada and the northern United States.Mead, Kurt. (2017). ''Dragonflies of the North Woods.'' 3rd edition. Duluth, MN: Kollath+Stensaas, p.34-35. Description Adult Canada darners, similar to other members of the genus ''Aeshna'', are relatively large, slender dragonflies, and are predominantly dark brown with paler blue or green markings. Adults are 64 to 73 mm in total length. The thorax has two vertical stripes on each side, the front with a prominent notch and an extension at the top. The abdomen has spots on most segments. The pale markings are usually blue in males and range from yellow-green to blue in females. The eyes are bluish in males and yellowish or bluish in females. The pale markings may turn gray at colder temperatures. The green-striped darner is very similar, but is distinguished by minor differences in the shape of the markings and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Ström
Hans may refer to: __NOTOC__ People * Hans (name), a masculine given name * Hans Raj Hans, Indian singer and politician ** Navraj Hans, Indian singer, actor, entrepreneur, cricket player and performer, son of Hans Raj Hans ** Yuvraj Hans, Punjabi actor and singer, son of Hans Raj Hans * Hans clan, a tribal clan in Punjab, Pakistan Places * Hans, Marne, a commune in France * Hans Island, administrated by Greenland and Canada Arts and entertainment * ''Hans'' (film) a 2006 Italian film directed by Louis Nero * Hans (Frozen), the main antagonist of the 2013 Disney animated film ''Frozen'' * ''Hans'' (magazine), an Indian Hindi literary monthly * ''Hans'', a comic book drawn by Grzegorz Rosiński and later by Zbigniew Kasprzak Other uses * Clever Hans, the "wonder horse" * ''The Hans India'', an English language newspaper in India * HANS device, a racing car safety device *Hans, the ISO 15924 code for Simplified Chinese script See also *Han (other) *Hans im Glück, a Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Caerulea
The azure hawker (''Aeshna caerulea'') is one of the smaller species of hawker dragonflies, (family Aeshnidae). The flight period is from late May to August It is about 62 mm long. Both sexes have azure blue spots on each abdominal segment and the thorax also has azure markings. The markings on the male are brighter and more conspicuous than in the female. The female also has a brown colour form. This species flies in sunshine, and will also bask on stones or tree trunks. It shelters in heather or similar low vegetation in dull weather. Unique to this species is that the blue of the male pales to a more grey colour at lower temperatures. The species is widespread in the Eurasian polar region. In Great Britain, the azure hawker occurs only in Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeshna Athalia
''Aeshna athalia'' is a species of dragonfly in the genus ''Aeshna''. It is found in China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and .... References Aeshnidae Odonata of Asia Insects described in 1930 {{Aeshnidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.JPG "Click for more on -> Southern Hawker")
