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Leucauge Argyrobapta
''Leucauge argyrobapta'', or Mabel's orchard orb weaver, is a species of long-jawed orb weaver in the spider family Tetragnathidae. It is found in Southern part of the USA, Mexico and Brazil, further testing most be done to see if its is found in more of Central and South America. Identification The males of this species differs from those of '' L. vetusta'' by the male palpal bulb, although some are easier to differentiate than others. Females of both of this species are practically identical, the main way to differentiate these species would be by the distribution. ''L. argyrobapta'' is found from the south of the USA (mainly Florida), all the way to Brazil. While ''L. vetusta'' is found from the North of the USA to Canada. Taxonomy Adam White first described the Leucauge at the rank of subgenus, and the described the type species, then being ''Linyphia argyrobapta''. This species was collected by Charles Darwin in 1832, in the Rio de Janeiro area. Though this specimen wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adam White (zoologist)
Adam White (29 April 1817 – 30 December 1878) was a Scottish zoologist. Biography White was born in Edinburgh on 29 April 1817.White, Adam (1817-1878), naturalist by Ann Datta in the ''''. He became acquainted with , at the |
Palpal Bulb
The two palpal bulbs – also known as palpal organs and genital bulbs – are the copulatory organs of a male spider. They are borne on the last segment of the pedipalps (the front "limbs" of a spider), giving the spider an appearance often described as like wearing boxing gloves. The palpal bulb does not actually produce sperm, being used only to transfer it to the female. Palpal bulbs are only fully developed in adult male spiders and are not completely visible until after the final moult. In the majority of species of spider, the bulbs have complex shapes and are important in identification. Structure The palpal bulb of a mature male spider is borne on the last segment of the pedipalp. This segment usually has touch-sensitive hairs (setae) with nerves leading to them. The bulb itself is entirely without nerves, and hence without sensory organs and muscles, since these depend on nerves for their functioning, although some spiders have one or two muscles external to the bulb and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchard Orbweavet Observes From Her Orb Web
An orchard is an intentional plantation of trees or shrubs that is maintained for food production. Orchards comprise fruit- or nut-producing trees which are generally grown for commercial production. Orchards are also sometimes a feature of large gardens, where they serve an aesthetic as well as a productive purpose. A fruit garden is generally synonymous with an orchard, although it is set on a smaller non-commercial scale and may emphasize berry shrubs in preference to fruit trees. Most temperate-zone orchards are laid out in a regular grid, with a grazed or mown grass or bare soil base that makes maintenance and fruit gathering easy. Most modern commercial orchards are planted for a single variety of fruit. While the importance of introducing biodiversity is recognized in forest plantations, it would seem to be beneficial to introduce some genetic diversity in orchard plantations as well by interspersing other trees through the orchard. Genetic diversity in an orchard would pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to the south by the Straits of Florida and Cuba; it is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. Spanning , Florida ranks 22nd in area among the 50 states, and with a population of over 21 million, it is the third-most populous. The state capital is Tallahassee, and the most populous city is Jacksonville. The Miami metropolitan area, with a population of almost 6.2 million, is the most populous urban area in Florida and the ninth-most populous in the United States; other urban conurbations with over one million people are Tampa Bay, Orlando, and Jacksonville. Various Native American groups have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio De Janeiro (state)
Rio de Janeiro () is one of the 27 federative units of Brazil. It has the second largest economy of Brazil, with the largest being that of the state of São Paulo. The state, which has 8.2% of the Brazilian population, is responsible for 9.2% of the Brazilian GDP. The state of Rio de Janeiro is located within the Brazilian geopolitical region classified as the Southeast (assigned by IBGE). Rio de Janeiro shares borders with all the other states in the same Southeast macroregion: Minas Gerais ( N and NW), Espírito Santo ( NE) and São Paulo ( SW). It is bounded on the east and south by the South Atlantic Ocean. Rio de Janeiro has an area of . Its capital is the city of Rio de Janeiro, which was the capital of the Portuguese Colony of Brazil from 1763 to 1815, of the following United Kingdom of Portugal, Brazil and the Algarves from 1815 to 1822, and of later independent Brazil as a kingdom and republic from 1822 to 1960. The state's 22 largest cities are Rio de Janeiro, São G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Darwin
Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a common ancestor is now generally accepted and considered a fundamental concept in science. In a joint publication with Alfred Russel Wallace, he introduced his scientific theory that this branching pattern of evolution resulted from a process he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding. Darwin has been described as one of the most influential figures in human history and was honoured by burial in Westminster Abbey. Darwin's early interest in nature led him to neglect his medical education at the University of Edinburgh; instead, he helped to investigate marine invertebrates. His studies at the University of Cambridge's Christ's Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisions that are permitted within a genus by adding the prefix "sub-" or in other ways as long as no confusion can result. Article 4 The secondary ranks of section and series are subordinate to subgenus. An example is ''Banksia'' subg. ''Isostylis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucauge
''Leucauge'' () is a spider genus of long-jawed orb weavers, with over 160 species and fully pantropical distribution. The genus was first documented in Scottish zoologist Adam White's 1841 ''Description of new or little known Arachnida''. Charles Darwin had suggested the name of the genus and collected the first specimen in May 1832, later named ''L. argyrobapta''. A vague description and the loss of the only specimen left the genus ill-defined. ''Leucauge'' developed into something of a wastebasket taxon containing 300 loosely related species, until research in the year 2010 resolved ''L. argyrobapta'' as a synonym of the quite common '' L. venusta'' and allowed revision and reclassing of the genus. However, a 2018 paper restored ''Leucauge argyrobapta'' as a separate species. The body and leg shapes and the silver, black and yellow markings of ''Leucauge'' females make identification of the genus relatively easy. They have two rows of long, slender curved hairs on the femu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucauge Venusta
''Leucauge venusta'', known as the orchard spider, is a long-jawed orbweaver spider that occurs from southern Canada to Colombia, along the East coast, reaching into the central US, also in South Asia.The web is often oriented horizontally, with the spider hanging down in the center. It is distinctively colored, with leaf-green legs and sides (which can sometimes vary to a dark green or even orange). The underside of its thorax is spotted with yellow and black, the top is silvery with brown and black streaks. The neon yellow, orange or red spots on the rear of the abdomen are variable in size among individuals and sometimes absent. This species is parasitised by a wasp larva which attaches itself externally at the junction of the cephalothorax and abdomen.BBC "Life in the Undergrowth"/"Intimate Relations" A similar species in the same genus is ''Leucauge mariana ''Leucauge mariana'' is a long-jawed orb weaver spider, native to Central America and South America. Its web buil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long-jawed Orb Weaver
Long-jawed orb weavers or long jawed spiders (Tetragnathidae) are a family of Araneomorphae, araneomorph spiders first described by Anton Menge in 1866. They have elongated bodies, legs, and chelicerae, and build small orb webs with an open hub with few, wide-set radii and spirals with no signal line or retreat. Some species are often found in long vegetation near water. Systematics , the World Spider Catalog accepts the following extant genera: *''Alcimosphenus'' Simon, 1895 — Caribbean *''Allende_(spider), Allende'' Álvarez-Padilla, 2007 — Chile, Argentina *''Antillognatha'' Bryant, 1945 — Hispaniola *''Atelidea'' Simon, 1895 — Sri Lanka *''Azilia'' Keyserling, 1881 — United States, Panama, South America, Caribbean *''Chrysometa'' Simon, 1894 — South America, Central America, Mexico, Caribbean *''Cyrtognatha'' Keyserling, 1881 — South America, Central America, Caribbean, Mexico *''Dianleucauge'' Song & Zhu, 1994 — China *''Diphya'' Nicolet, 1849 — Asia, Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central America
Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. Central America consists of eight countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, and Panama. Within Central America is the Mesoamerican biodiversity hotspot, which extends from northern Guatemala to central Panama. Due to the presence of several active geologic faults and the Central America Volcanic Arc, there is a high amount of seismic activity in the region, such as volcanic eruptions and earthquakes which has resulted in death, injury, and property damage. In the pre-Columbian era, Central America was inhabited by the indigenous peoples of Mesoamerica to the north and west and the Isthmo-Colombian peoples to the south and east. Following the Spanish expedition of Christopher Columbus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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