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Golden Orbweaver
Nephilidae is a spider family commonly referred to as golden orb-weavers. The various genera in the Nephilidae family were formerly placed in Tetragnathidae and Araneidae. All nephilid genera partially renew their webs. Reproductive behavior The genera '' Herennia'', '' Nephilengys'' and ''Nephilingis'' display extreme sexually driven selection. The pedipalps of these genera have become highly derived by evolving enlarged, complex palpal bulbs which break off inside the females' copulatory openings after copulation. The broken palps serve as mating plugs, which makes future matings with a mated female more difficult. These genera of spiders also participate in mate guarding; a mated male will stand guard by his female and chase off other males, thereby increasing the mated male's paternity share. Mated males are castrated in the process of mate plugging, though this may be an advantage in mate guarding, as mated males have been observed to fight more aggressively and win more freq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephila Pilipes
''Nephila pilipes'' (northern golden orb weaver or giant golden orb weaver''Nephila pilipes'' Arachne.org.au) is a species of golden orb-web spider. It resides all over countries in East and Southeast Asia as well as Oceania. It is commonly found in Primary forest, primary and secondary forests and gardens. Adult females are very large, with a body length of 25 to 50 mm (1 to 2 inches). Males are dwarfs, measuring only 4 to 6 mm (about 0.2 inch). It is the second largest of the orb-weaving spiders apart from the recently discovered ''Nephila komaci''. The first, second, and fourth pairs of legs of juvenile females have dense hairy brushes, but these brushes disappear as the spider matures. The ''N. pilipes'' golden web is vertical with a fine irregular mesh. It is not symmetrical, with the hub usually nearer the top. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimitar Dimitrov (zoologist)
Dimitar Dimitrov may refer to: * Dimitar Dimitrov (bobsleigh) (born 1966), Bulgarian Olympic bobsledder * Dimitar Dimitrov (football manager) (born 1959), Bulgarian football manager * Dimitar Dimitrov (writer) (born 1937), former Macedonian Minister of Culture * Dimitar Dimitrov (volleyball) (born 1952), Bulgarian former volleyball player * Dimitar Dimitrov (footballer, born 1949), Bulgarian footballer * Dimitar Dimitrov (footballer, born 1990), Bulgarian footballer * Dimitar Dimitrov (gymnast) (born 1978), Bulgarian artistic gymnast * Dimitar Dimitrov (basketball), Bulgarian basketball player * Dimitar Dimitrov (zoologist), zoologist interested in spiders * Dimitar Dimitrov (sambist), international medalist in sambo {{hndis, Dimitrov, Dimitar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider Families
Spider taxonomy is the part of taxonomy that is concerned with the science of naming, defining and classifying all spiders, members of the Araneae order of the arthropod class Arachnida, which has more than 52,700 described species. However, there are likely many species that have escaped the human eye as well as specimens stored in collections waiting to be described and classified. It is estimated that only one-third to one half of the total number of existing species have been described. Arachnologists divide spiders into two suborders with about 136 families . Due to constant research, with new species being discovered every month and others being recognized as synonyms, the number of species in the families is bound to change and only reflects the present state of knowledge. Nevertheless, the species numbers given here are useful as a guideline – see the table of families at the end of the article. History Spider taxonomy can be traced to the work of Swedish naturalist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Nephilidae Species
These pages list all described species of the spider family Araneidae Orb-weaver spiders are members of the spider family Araneidae. They are the most common group of builders of spiral wheel-shaped webs often found in gardens, fields, and forests. The English word "orb" can mean "circular", hence the English name ... as of Nov. 5, 2013. * List of Araneidae species: A * List of Araneidae species: B–F * List of Araneidae species: G–M * List of Araneidae species: N–Z Lists of spider species by family {{DEFAULTSORT:Araneidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Dahl
Karl Friedrich Theodor Dahl (24 June 1856 in Rosenhofer Brök north of Dahme, Schleswig-Holstein, Dahme, Holstein – 29 June 1929 in Greifswald) was a German zoologist, and in particular an arachnologist. The son of a farmer, Dahl studied at the universities of Leipzig, Freiburg, Berlin and Kiel. His dissertation (1884) was "''Beiträge zur Kenntnis des Baus und der Funktion der Insektenbeine''". He became a ''Privatdozent'' in 1887; with a habilitation thesis "''Ueber die Cytheriden der westlichen Ostsee''". Around this time he traveled to the Baltic states and (1896–1897) to the Bismarck Archipelago near New Guinea. He was also interested in biogeography. On 1 April 1898 Dahl became curator of arachnids at the ''Natural History Museum, Berlin, Museum für Naturkunde'' in Berlin, where he worked under his former teacher, the then museum director Karl Möbius. Dahl remained in Berlin until he retired, and his type collection is held in that museum. Although he described in man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichonephila
''Trichonephila'' is a genus of golden orb-weaver spiders that was first described by Friedrich Dahl in 1911, as a subgenus of '' Nephila''. ''Trichonephila'' was elevated to a genus by Kuntner ''et al.'' in 2019. Distribution and habitat ''Trichonephila'' can be found living in Africa, Oceania, Asia, Central America, the West Indies, South America, and the US' southeastern region and gulf states. These spiders like to make webs where prey is fruitful, often in open wooded areas, between tree branches, shrubs, tall grasses, and around light fixtures. Males are more active in the months of July to September, while the females are most active late into fall. Species the genus includes twelve species and fourteen subspecies, found in Africa, Oceania, Asia, and the Americas: *'' Trichonephila antipodiana'' ( Walckenaer, 1841) – China, Philippines to New Guinea, Solomon Is., Australia (Queensland) *'' Trichonephila clavata'' ( L. Koch, 1878) – India to Japan. Introduced t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwig Carl Christian Koch
Ludwig Carl Christian Koch (8 November 1825 – 1 November 1908) was a German entomologist and arachnologist. He was born in Regensburg, Germany, and died in Nuremberg, Germany. He studied in Nuremberg, initially law, but then turned to medicine and science. From 1850, he practiced as a physician in the Wöhrd district of Nuremberg. He is considered among the four most influential scientists on insects and spiders in the second half of the 19th century. He wrote numerous works on the arachinoids of Europe, Siberia, and Australia. His work earned him worldwide reputation as "Spider Koch". Sometimes confused with his father Carl Ludwig Koch (1778–1857), another famous arachnologist, his name is abbreviated L.Koch on species descriptions; his father's name is abbreviated C.L.Koch Pierre Bonnet. ''Bibliographia araneorum,'' (1945) Les frères Doularoude (Toulouse). Works ''Die Arachniden Australiens'' (1871-1883), his major work on Australian spiders, was completed by Eugen von ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Elford Leach
William Elford Leach (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist. Life and work Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a medical apprenticeship at the Royal Devon and Exeter Hospital, Devonshire and Exeter Hospital, studying anatomy and chemistry. By this time he was already collecting marine animals from Plymouth Sound and along the Devon coast. At seventeen he began studying medicine at St Bartholomew's Hospital in London, finishing his training at the University of Edinburgh before graduating Doctor of Medicine, MD from the University of St Andrews (where he had never studied). From 1813 Leach concentrated on his zoological interests and was employed as an 'Assistant Librarian' (what would later be called Assistant Keeper) in the Natural History Museum, London, Natural History Department of the British Museum, where he had responsibility for the zoological collections. Here ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indoetra
''Indoetra'' is a monotypic genus of south Asian golden orb-weaver spiders containing the single species, ''Indoetra thisbe''. Originally described as a subgenus of '' Clitaetra'', it was elevated to genus status in 2019. It has only been found in Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, .... References Further reading * * Nephilidae Monotypic Araneomorphae genera Arthropods of Sri Lanka {{Spider-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tord Tamerlan Teodor Thorell
Tord Tamerlan Teodor Thorell (3 May 1830 – 22 December 1901) was a Sweden, Swedish arachnologist. Thorell studied spiders with Giacomo Doria at the Museo Civico di Storia Naturale de Genoa. He corresponded with other arachnologists, such as Octavius Pickard-Cambridge, Eugène Simon and Thomas Workman (entomologist), Thomas Workman. He described more than 1,000 spider species during his time from the 1850s to 1900. Thorell wrote: ''On European Spiders'' (1869) and ''Synonym of European Spiders'' (1870-73). Taxonomic honors The Orb-weaver spider genus ''Thorellina'' and the jumping spider genus ''Thorelliola'' are named after him, as well as about 30 species of spiders: * ''Araneus thorelli'' (Roewer, 1942) (Myanmar) (Araneidae) * ''Gasteracantha thorelli'' Keyserling, 1864 (Madagascar) (Araneidae) * ''Leviellus thorelli'' (Ausserer, 1871) (Europe) (Araneidae) * ''Mandjelia thorelli'' (Raven, 1990) (Queensland) (Barychelidae) * ''Clubiona thorelli'' Roewer, 1951 (Sumatra) (Club ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A ''polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clitaetra
''Clitaetra'' is a genus of spiders in a family Nephilidae. It occurs in Africa, Madagascar and Sri Lanka, hinting to a Gondwanan origin. a split between ''Clitaetra'' and related genera may be as old as 160 million years.Kuntner, M. 2006. Phylogenetic systematics of a Gondwanan nephilid spider lineage Clitaetrinae (Araneae, Nephilidae). ''Zoologica Scripta'' 35(1):19-62PDF Name The etymology of the genus name is unknown. Species , a World Spider Catalog The World Spider Catalog (WSC) is an online searchable database concerned with spider taxonomy. It aims to list all accepted families, genera and species, as well as provide access to the related taxonomic literature. The WSC began as a series of ... accepted the following species: * '' Clitaetra clathrata'' Simon, 1907 – West Africa * '' Clitaetra episinoides'' Simon, 1889 – Comoro Is. * '' Clitaetra irenae'' Kuntner, 2006 – South Africa * '' Clitaetra perroti'' Simon, 1894 – Madagascar * '' Clitaetra simoni'' Benoit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
