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Chrysopilus Ater
''Chrysopilus ater'' is a species of snipe fly in the family Rhagionidae Distribution St. Vincent Saint Vincent may refer to: People Saints * Vincent of Saragossa (died 304), a.k.a. Vincent the Deacon, deacon and martyr * Saint Vincenca, 3rd century Roman martyress, whose relics are in Blato, Croatia * Vincent, Orontius, and Victor (died 305) .... References Rhagionidae Insects described in 1896 Diptera of North America Endemic fauna of Saint Vincent and the Grenadines Taxa named by Samuel Wendell Williston {{Tephritinae-stub ...
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Samuel Wendell Williston
Samuel Wendell Williston (July 10, 1852 – August 30, 1918) was an American educator, entomologist, and paleontologist who was the first to propose that birds developed flight cursorially (by running), rather than arboreally (by leaping from tree to tree). He was a specialist on the flies, Diptera. He is remembered for Williston's law, which states that parts in an organism, such as arthropod limbs, become reduced in number and specialized in function through evolutionary history. Early life Williston was born in Boston, Massachusetts to Samuel Williston and Jane A. Williston née Turner. As a young child, Williston's family travelled to Kansas Territory in 1857 under the auspices of the New England Emigrant Aid Company to help fight the extension of slavery. He was raised in Manhattan, Kansas, attended public high school there, and graduated from Kansas State Agricultural College (now Kansas State University) in 1872, afterwards receiving a Master of Arts from that instituti ...
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Snipe Fly
Rhagionidae or snipe flies are a small family of flies. They get their name from the similarity of their often prominent proboscis that looks like the beak of a snipe. Description Rhagionidae are medium-sized to large flies with slender bodies and stilt-like legs. The mouthparts are adapted for piercing and many species are haematophagous as adults, while others are predatory on other insects. They are typically brown and yellow flies, and lack bristles. The larvae are also predatory and are mostly terrestrial, although some are aquatic.Watson & Dallwitz Snipe flies in the genus ''Rhagio'' are sometimes called "down-looker" flies after their habit of perching head-downward on tree trunks. Classification The family is contained in Brachycera infraorder Tabanomorpha, and several of its constituent groups have been recently elevated to family rank. ''Atherix'' (and related genera) now comprise the Athericidae, ''Vermileo'' (and related genera) now comprise the Vermileonidae, a ...
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Rhagionidae
Rhagionidae or snipe flies are a small family of flies. They get their name from the similarity of their often prominent proboscis that looks like the beak of a snipe. Description Rhagionidae are medium-sized to large flies with slender bodies and stilt-like legs. The mouthparts are adapted for piercing and many species are haematophagous as adults, while others are predatory on other insects. They are typically brown and yellow flies, and lack bristles. The larvae are also predatory and are mostly terrestrial, although some are aquatic.Watson & Dallwitz Snipe flies in the genus ''Rhagio'' are sometimes called "down-looker" flies after their habit of perching head-downward on tree trunks. Classification The family is contained in Brachycera infraorder Tabanomorpha, and several of its constituent groups have been recently elevated to family rank. '' Atherix'' (and related genera) now comprise the Athericidae, ''Vermileo'' (and related genera) now comprise the Vermileonida ...
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Saint Vincent And The Grenadines
Saint Vincent and the Grenadines () is an island country in the Caribbean. It is located in the southeast Windward Islands of the Lesser Antilles, which lie in the West Indies at the southern end of the eastern border of the Caribbean Sea where the latter meets the Atlantic Ocean. Its territory consists of the main island of Saint Vincent and, south of that, two-thirds of the northern part of the Grenadines, a chain of 32 smaller islands. Some of the Grenadines are inhabited—Bequia, Mustique, Union Island, Canouan, Petit Saint Vincent, Palm Island, Mayreau, Young Island—while others are not: Tobago Cays, Baliceaux, Battowia, Quatre, Petite Mustique, Savan and Petit Nevis. Most of Saint Vincent and the Grenadines lies within the Hurricane Alley. To the north of Saint Vincent lies Saint Lucia, to the east is Barbados, and Grenada lies to the south. Saint Vincent and the Grenadines has a population density of over 300 inhabitants/km2 (700 per sq. mi.), with approxima ...
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Insects Described In 1896
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ...
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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 ...
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Endemic Fauna Of Saint Vincent And The Grenadines
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ...
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