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Dixidae Wing Veins
The Dixidae (meniscus midges) are a family (biology), family of aquatic insect, aquatic nematoceran fly, flies (Diptera). The larvae live in unpolluted, standing fresh waters, just beneath the surface film, usually amongst marginal aquatic vegetation. They are found in all continents except Antarctica. Description Dixidae are small (body length not more than 5.0 mm) slender gnats with thin legs. Adults are black to yellowish-brown. The head is relatively broad. The antennae are thin and the flagellum has 14 segments. The proboscis is short and thick and the palpi are five-segmented. The thorax is slightly convex. The wing veins are without scales (with scales in the closely related family Culicidae). The subcosta is fused with the costa at the level of the base of Rs or slightly proximal to this. The wing venation exhibits radial, medial, and cubital forks (R 4 branched, M 2 branched, Cu 2 branched). R 2+ 3 is strongly arched, the r–m crossvein is distinct, and the discal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dixa Nebulosa
''Dixa nebulosa'' is a species of fly in the family Dixidae. It is found in the Palearctic.Bei-Bienko, G.Y. & Steyskal, G.C. (1988) ''Keys to the Insects of the European Part of the USSR'', Volume V: Diptera and Siphonaptera, Parts I, II. Amerind Publishing Co., New Delhi. References Dixidae Insects described in 1830 Nematoceran flies of Europe {{Culicoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresh Water
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salt (chemistry), salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include non-salty mineral water, mineral-rich waters, such as chalybeate springs. Fresh water may encompass frozen water, frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ice pellets, sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranea (geography), subterranean subterranean river, rivers and underground lake, lakes. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of vascular plants and most insects, amphibians, reptiles, mammals and birds need fresh water to sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grigory Bey-Bienko
Grigory Yakovlevich Bey-Bienko (; 7 February 1903 – 3 November 1971) was a Soviet and Russian entomologist who specialized in Orthoptera. Life and education Bey-Bienko was born in Bilopillia. During his childhood, he regularly accompanied his father on trips in Siberia, and it was during these that he developed his interest in insects. He graduated from the Omsk Institute of Agriculture, having made a list of local acridoidea while still a student. During the Second World War, he took part in the Siege of Leningrad, before being evacuated to Perm. Career Bey-Bienko moved to Leningrad in 1927, and there worked in the USSR Institute for Plants Protection (Vsesoyuznij Institut Zaschity Rastenij, 1929–1938), Leningrad Agricultural Institute (1938–1968) and Institute for Zoology of the Academy of Sciences of the Soviet Union (starting in 1948). During this time, he produced many works on the ecology and entomology of groups as diverse as the Tettigoniidae and Dermaptera nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erwin Lindner
Erwin Lindner (7 April 1888 – 30 November 1988) was a German entomologist mainly interested in Diptera. He was born in Böglins, Memmingen, and died in Stuttgart, at age 100 years. In 1913, Erwin Lindner joined the State Museum of Natural History Stuttgart and was head of the Department of Entomology there until 1953. He edited ''Die Fliegen der paläarktischen Region'' (the Flies of the Palaearctic Region), a twelve-volume seminal work on the systematics and anatomy of the flies of the Palearctic realm. Lindner, a passionate collector, participated in several expeditions and traveled to Dalmatia, the Gran Chaco, Anatolia, Liguria, East Africa, Italy, Spain and the regions of the Alps The Alps () are some of the highest and most extensive mountain ranges in Europe, stretching approximately across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia. .... References *Evenhuis, N. L. 1997: Litte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''Ēṓs'', 'Eos, Dawn') and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch.See: *Letter from William Whewell to Charles Lyell dated 31 January 1831 in: * From p. 55: "The period next antecedent we shall call Eocene, from ήως, aurora, and χαινος, recens, because the extremely small proportion of living species contained in these strata, indicates what may be considered the first commencement, or ''dawn'', of the existing state of the animate creation." The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isoto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucorethrina
''Eucorethrina'' is a genus of flies belonging to the family Chaoboridae Chaoboridae, commonly known as phantom midges or glassworms, is a family of fairly common midges with a cosmopolitan distribution. They are closely related to the Corethrellidae and Chironomidae; the adults are differentiated through peculiariti .... The species of this genus are found in Europe and Russia. Species: * '' Eucorethrina convexa'' Lukashevich, 1996 * '' Eucorethrina flexa'' Kalugina, 1985 References {{Taxonbar, from=Q16635155 Chaoboridae Culicoidea genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. The Jurassic constitutes the second and middle period of the Mesozoic, Mesozoic Era as well as the eighth period of the Phanerozoic, Phanerozoic Eon and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province (CAMP). The beginning of the Toarcian Age started around 183 million years ago and is marked by the Toarcian Oceanic Anoxic Event, a global episode of Anoxic event, oceanic anoxia, ocean acidification, and elevated global temperatures associated with extinctions, likely caused by the eruption of the Kar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culicidae
Mosquitoes, the Culicidae, are a Family (biology), family of small Diptera, flies consisting of 3,600 species. The word ''mosquito'' (formed by ''Musca (fly), mosca'' and diminutive ''-ito'') is Spanish and Portuguese for ''little fly''. Mosquitoes have a slender segmented body, one pair of wings, three pairs of long hair-like legs, and specialized, highly elongated, piercing-sucking mouthparts. All mosquitoes drink nectar from flowers; females of some species have in addition adapted to drink blood. The group diversified during the Cretaceous period. Evolutionary biology, Evolutionary biologists view mosquitoes as micropredators, small animals that Parasitism, parasitise larger ones by drinking their blood without immediately killing them. Parasitology, Medical parasitologists view mosquitoes instead as Disease vector, vectors of disease, carrying protozoan parasites or bacterial or virus, viral pathogens from one Host (biology), host to another. The mosquito life cycle cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dixidae Wing Veins
The Dixidae (meniscus midges) are a family (biology), family of aquatic insect, aquatic nematoceran fly, flies (Diptera). The larvae live in unpolluted, standing fresh waters, just beneath the surface film, usually amongst marginal aquatic vegetation. They are found in all continents except Antarctica. Description Dixidae are small (body length not more than 5.0 mm) slender gnats with thin legs. Adults are black to yellowish-brown. The head is relatively broad. The antennae are thin and the flagellum has 14 segments. The proboscis is short and thick and the palpi are five-segmented. The thorax is slightly convex. The wing veins are without scales (with scales in the closely related family Culicidae). The subcosta is fused with the costa at the level of the base of Rs or slightly proximal to this. The wing venation exhibits radial, medial, and cubital forks (R 4 branched, M 2 branched, Cu 2 branched). R 2+ 3 is strongly arched, the r–m crossvein is distinct, and the discal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Biological Association
The Freshwater Biological Association (FBA) is an independent scientific organisation founded in 1929 in Cumbria by Felix Eugen Fritsch, William Harold Pearsall, Francis Balfour-Browne, and Robert Gurney among others. Whilst originally created to be a research station it has evolved into a learned society whose mission is "to promote the sustainable management of freshwater ecosystems and resources, using the best available science". It works closely alongside other organisations, notably Natural Environment Research Council. The FBA promotes Limnology, freshwater science through innovative research, maintained specialist scientific facilities, a programme of scientific meetings, production of publications, and by providing sound independent scientific opinion. As of 2010, the FBA hosted both published and unpublished collections, two specialist libraries and varieties of long term data sets from sites of scientific significance. It is managed by the Chief Executive who was assiste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
