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Chrysops Altivagus
Deer flies (also known in some parts of the mid-Atlantic United States as sheep flies) are bloodsucking insects considered pests to humans and cattle. They are large flies with large brightly coloured compound eyes, and large clear wings with dark bands. They are larger than the common housefly and smaller than the horse fly. There are 250 species of deer fly in the genus ''Chrysops''. Their distribution is worldwide, though they have not been reported in Iceland, Greenland, or Hawaii. Deer flies lay between 100 and 800 eggs in batches on vegetation near water or dampness. During the larval stage, which lasts one to three years, they feed on small creatures or rotting organic matter near or in the water. After a pupal stage, they emerge as adults in late spring and summer. While male deer flies collect pollen, female deer flies feed on blood, which they require to produce eggs. Females feed primarily on mammals. They are attracted to prey by sight, smell, or the detection of carb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Callidus
''Chrysops callidus'' is a species of deer fly in the family Tabanidae. Distribution Canada, United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 .... References Tabanidae Insects described in 1875 Diptera of North America Taxa named by Carl Robert Osten-Sacken {{Tabanoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Relictus
''Chrysops relictus'', the twin-lobed deerfly, is a largish European and Asian deerfly of about length. The larva A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...e feed upon organic matter in damp soils, and are termed hydrobionts in that they inhabit areas of high water content. References Tabanidae Diptera of Europe Diptera of Asia Insects described in 1820 Taxa named by Johann Wilhelm Meigen {{Tabanoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compound Eyes
A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color. The image perceived by this arthropod eye is a combination of inputs from the numerous ommatidia, which are oriented to point in slightly different directions. Compared with single-aperture eyes, compound eyes have poor image resolution; however, they possess a very large view angle and the ability to detect fast movement and, in some cases, the polarization of light. Because a compound eye is made up of a collection of ommatidia, each with its own lens, light will enter each ommatidium instead of using a single entrance point. The individual light receptors behind each lens are then turned on and off due to a series of changes in the light intensity during movement or when an object is moving, creating a flic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pest (organism)
A pest is any organism harmful to humans or human concerns. The term is particularly used for creatures that damage crops, livestock, and forestry or cause a nuisance to people, especially in their homes. Humans have modified the environment for their own purposes and are intolerant of other creatures occupying the same space when their activities impact adversely on human objectives. Thus, an elephant is unobjectionable in its natural habitat but a pest when it tramples crops. Some animals are disliked because they bite or sting; wolves, snakes, wasps, ants, bed bugs, fleas and ticks belong in this category. Others enter the home; these include houseflies, which land on and contaminate food; beetles, which tunnel into the woodwork; and other animals that scuttle about on the floor at night, like rats and cockroaches, which are often associated with unsanitary conditions. Agricultural and horticultural crops are attacked by a wide variety of pests, the most important being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hematophagy
Hematophagy (sometimes spelled haematophagy or hematophagia) is the practice by certain animals of feeding on blood (from the Greek words αἷμα ' "blood" and φαγεῖν ' "to eat"). Since blood is a fluid tissue rich in nutritious proteins and lipids that can be taken without great effort, hematophagy is a preferred form of feeding for many small animals, such as worms and arthropods. Some intestinal nematodes, such as Ancylostomatids, feed on blood extracted from the capillaries of the gut, and about 75 percent of all species of leeches (e.g., '' Hirudo medicinalis'') are hematophagous. The spider '' Evarcha culicivora'' feeds indirectly on vertebrate blood by specializing on blood-filled female mosquitoes as their preferred prey. Some fish, such as lampreys and candirus; mammals, especially vampire bats; and birds, including the vampire finch, Hood mockingbird, Tristan thrush, and oxpeckers, also practise hematophagy. Mechanism and evolution Hematop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-Atlantic (United States)
The Mid-Atlantic is a List of regions of the United States, region of the United States located in the overlap between the nation's Northeastern United States, Northeastern and Southeastern United States, Southeastern states. Traditional definitions include seven U.S. states: New York (state), New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, West Virginia, and the national capital of Washington, D.C.. Depending on various factors, different regional divisions exist however: the Bureau of Labor Statistics, U.S. Bureau of Labor Statistics in its newest regional division excludes New York from the region; the US Census Bureau excludes Delaware, Maryland, Virginia and West Virginia from the region; USGS defines the region by watersheds thus additionally including North Carolina;Earl A. Greene et al"Ground-Water Vulnerability to Nitrate Contamination in the Mid-Atlantic Region". United States Geological Survey, USGS Fact Sheet FS 2004-3067. 2005. Retrieved April 25, 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Vittatus
''Chrysops vittatus'' is a species of deer fly in the family Tabanidae. Distribution United States and Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun .... References Tabanidae Insects described in 1821 Diptera of North America Taxa named by Christian Rudolph Wilhelm Wiedemann {{Tabanoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Viduatus
''Chrysops viduatus'' is a species of horse fly belonging to the family Tabanidae. It is a Palearctic species with a limited distribution in EuropeFauna Europaea Description The middle tibiae of ''C. viduatus'' are distinctly yellow-brown. The second abdominal segment is yellow with a well-defined quadrate black spot. Biology ''Chrysops viduatus'' occurs in wet meadow A wet meadow is a type of wetland with soils that are Solubility, saturated for part or all of the growing season which prevents the growth of trees and brush. Debate exists whether a wet meadow is a type of marsh or a completely separate type of ...s, mires, fens and wet woodlands. The larvae feed on organic matter in wet peaty detritus. Adults feed on large mammals including cattle, horses and deer. References External linksInfluential points {{Taxonbar, from=Q14364804 Tabanidae Insects described in 1794 Taxa named by Johan Christian Fabricius Diptera of Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Univittatus
''Chrysops univittatus'' is a species of deer fly in the family Tabanidae Horse flies and deer flies are true flies in the family Tabanidae in the insect order Diptera. The adults are often large and agile in flight. Only females bite land vertebrates, including humans, to obtain blood. They prefer to fly in sunli .... Distribution Eastern United States and southeastern Canada. References {{Taxonbar, from= Q13494697 Tabanidae Insects described in 1855 Insects of the United States Taxa named by Pierre-Justin-Marie Macquart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Tidwelli
Deer flies (also known in some parts of the Mid-Atlantic (United States), mid-Atlantic United States as sheep flies) are Hematophagy, bloodsucking insects considered Pest (organism), pests to humans and cattle. They are large flies with large brightly coloured compound eyes, and large clear wings with dark bands. They are larger than the common housefly and smaller than the horse fly. There are 250 species of deer fly in the genus ''Chrysops''. Their distribution is worldwide, though they have not been reported in Iceland, Greenland, or Hawaii. Deer flies lay between 100 and 800 eggs in batches on vegetation near water or dampness. During the larval stage, which lasts one to three years, they feed on small creatures or rotting organic matter near or in the water. After a pupal stage, they emerge as adults in late spring and summer. While male deer flies collect pollen, female deer flies feed on blood, which they require to produce eggs. Females feed primarily on mammals. They are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysops Surdus
''Chrysops surdus'' is a species of deer fly in the family Tabanidae. Distribution Canada, United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 .... References Tabanidae Insects described in 1877 Diptera of North America Taxa named by Carl Robert Osten-Sacken {{Tabanoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luigi Bellardi
Luigi Bellardi (18 May 1818 – 17 September 1889) was an Italian malacologist and entomologist who specialised in Diptera. Bellardi was born in Genoa and died in Turin. His collection is in the Turin Museum of Natural History In 1872, then a professor at Liceo Gioberti, Luigi Bellardi began ''I molluschi dei terreni terziari del Piemonte della Liguria'', a work on molluscs of the Middle and Early Tertiary in the Mediterranean basin. In 1888 he published the five parts dealing with Cephalopoda, Pteropoda and the first families of Gastropoda. In 1889 his student Prof. Federico Sacco (1864–1948) took over this work and published 25 more sections partly based on Bellardi’s work on this species-rich fossil group. A list of his publications can be found at the database WoRMS The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms. Content The content of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
