Tropidia Incana

	Tropidia Incana ''Tropidia incana'' is a species of hoverfly in the family Syrphidae. Distribution United States. References Milesiini Diptera of North America Hoverflies of North America Taxa named by Charles Henry Tyler Townsend Insects described in 1895 {{Milesiini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Charles Henry Tyler Townsend Charles Henry Tyler Townsend (5 December 1863 – 17 March 1944) was an American entomologist specializing in the study of tachinids (Tachinidae), a large and diverse family of flies (Diptera) with larvae that are parasitoids of other insects. He was perhaps the most prolific publisher of new tachinids, naming and describing some 3000 species and genera. He made important contributions to the biological control of insect pests and he was the first to identify the insect vector of a debilitating disease in Peru. Townsend was also a controversial figure and criticism of his approach to insect taxonomy continues to this day. Biography Townsend was born in Oberlin, Ohio, in 1863. He attended high school in Constantine, Michigan and graduated in 1882. From 1887 to 1891 he studied medicine at Columbian University (now George Washington University) in Washington, D.C. At the same time he worked in the United States Department of Agriculture as an assistant entomologist for Charles V. Ril ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Hoverfly Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects. Insects such as aphids are considered a crop pest, and therefore the aphid-eating larvae of some hover flies serve as an economically (as well as ecologically) important predator and even potential agents for use in biological control, while the adults may be pollinators. About 6,000 species in 200 genera have been described. Hover flies are common throughout the world and can be found on all continents except Antarctica. Hover flies are harmless to most mammals, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Milesiini The Milesiini (or Xylotini) is a large and diverse tribe of hoverflies. They mimic wasps or hornets. List of genera ''Aneriophora'' Stuardo & Cortes, 1952 ''Blera'' Billberg, 1820 ''Brachypalpus'' Macquart, 1834 '' Caliprobola'' Rondani, 1845 ''Chalcosyrphus'' Curran, 1925 ''Criorhina'' Meigen, 1822 ''Cynorhinella'' Curran, 1922 '' Deineches'' Walker, 1852 '' Flukea'' Etcheverry, 1966 '' Hadromyia'' Williston, 1882 '' Hemixylota'' Shannon & Aubertin, 1933 '' Lejota'' Rondani, 1857 '' Lycastris'' Walker, 1857 '' Macrometopia'' Philippi, 1865 '' Macrozelima'' Stackelberg, 1930 '' Malometasternum'' Shannon, 1927 '' Matsumyia'' Shiraki, 1949 '' Meropidia'' Hippa & Thompson, 1983 '' Milesia'' Latreille, 1804 '' Nepenthosyrphus'' de Meijere, 1932 '' Odyneromyia'' Shannon & Aubertin, 1833 ''Orthoprosopa'' Macquart, 1850 '' Palumbia'' Rondani, 1865 '' Philippimyia'' Shannon, 1926 ''Pocota'' Lepeletier & Serville, 1828 '' Pterallastes'' Loew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Diptera Of North America Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced mechanosensory organs known as halteres, which act as high-speed sensors of rotational movement and allow dipterans to perform advanced aerobatics. Diptera is a large order containing an estimated 1,000,000 species including horse-flies, crane flies, hoverflies and others, although only about 125,000 species have been described. Flies have a mobile head, with a pair of large compound eyes, and mouthparts designed for piercing and sucking (mosquitoes, black flies and robber flies), or for lapping and sucking in the other groups. Their wing arrangement gives them great maneuverability in flight, and claws and pads on their feet enable them to cling to smooth surfaces. Flies undergo complete metamorphosis; the eggs are often laid on the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Hoverflies Of North America Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects. Insects such as aphids are considered a crop pest, and therefore the aphid-eating larvae of some hover flies serve as an economically (as well as ecologically) important predator and even potential agents for use in biological control, while the adults may be pollinators. About 6,000 species in 200 genera have been described. Hover flies are common throughout the world and can be found on all continents except Antarctica. Hover flies are harmless to most mamma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Taxa Named By Charles Henry Tyler Townsend In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]