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Tetragnatha Determinata
''Tetragnatha determinata'', is a species of spider of the genus ''Tetragnatha''. It is endemic to Sri Lanka. See also * List of Tetragnathidae species This page lists all described genera and species of the spider family Tetragnathidae. , the World Spider Catalog accepts 989 species in 50 genera: A ''Alcimosphenus'' ''Alcimosphenus'' Simon, 1895 * '' Alcimosphenus licinus'' Simon, 1895 ( type ... References Tetragnathidae Endemic fauna of Sri Lanka Spiders of Asia Spiders described in 1892 {{Tetragnathidae-stub ...
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Spider
Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 families have been recorded by taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical pedicel, however, as there is currently neither paleontological nor embryological evidence that spiders ever had ...
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Tetragnatha
''Tetragnatha'' is a genus of long-jawed orb-weavers found all over the world. It was first described by Pierre André Latreille in 1804, and it contains hundreds of species. Most occur in the tropics and subtropics, and many can run over water. They are commonly called ''stretch spiders'' in reference to their elongated body form and their ability to hide on blades of grass or similar elongated substrates by stretching their front legs forward and the others behind them. The name ''Tetragnatha'' is derived from Greek, ''tetra-'' a numerical prefix referring to four and ''gnatha'' meaning "jaw". Evolution to cursorial behavior occurred long ago in a few different species, the most studied being those found on the Hawaiian islands. One of the biggest and most common species is '' T. extensa'', which has a holarctic distribution. It can be found near lakes, river banks or swamps. Large numbers of individuals can often be found in reeds, tall grass, and around minor trees and shrubs. ...
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Sri Lanka
Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, and southeast of the Arabian Sea; it is separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Lanka shares a maritime border with India and Maldives. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its largest city and financial centre. Sri Lanka has a population of around 22 million (2020) and is a multinational state, home to diverse cultures, languages, and ethnicities. The Sinhalese are the majority of the nation's population. The Tamils, who are a large minority group, have also played an influential role in the island's history. Other long established groups include the Moors, the Burghers ...
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List Of Tetragnathidae Species
This page lists all described genera and species of the spider family Tetragnathidae. , the World Spider Catalog accepts 989 species in 50 genera: A ''Alcimosphenus'' ''Alcimosphenus'' Simon, 1895 * '' Alcimosphenus licinus'' Simon, 1895 ( type) — Caribbean; apparently introduced in Florida. ''Allende'' '' Allende'' Álvarez-Padilla, 2007 * ''Allende longipes'' (Nicolet, 1849) — Chile, Argentina * ''Allende nigrohumeralis'' (F. O. Pickard-Cambridge, 1899) — Chile (Juan Fernandez Is., mainland), Chile, Argentina * ''Allende patagiatus'' (Simon, 1901) — Chile, Argentina * ''Allende puyehuensis'' Álvarez-Padilla, 2007 ( type) — Chile ''Antillognatha'' '' Antillognatha'' Bryant, 1945 * '' Antillognatha lucida'' Bryant, 1945 ( type) — Hispaniola ''Atelidea'' '' Atelidea'' Simon, 1895 * '' Atelidea nona'' Sankaran, Malamel, Joseph & Sebastian, 2017 — India * '' Atelidea spinosa'' Simon, 1895 ( type) — Sri Lanka ''Azilia'' '' Azilia'' Keyserling, 1881 * '' Azili ...
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Tetragnathidae
Long-jawed orb weavers or long jawed spiders (Tetragnathidae) are a family of 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'' 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, South America, Africa *''Dolic ...
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Endemic Fauna Of Sri Lanka
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 ...
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Spiders Of Asia
Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and rank seventh in total species diversity among all Order (biology), orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every land habitat. , 50,356 spider species in 132 Family (biology), families have been recorded by Taxonomy (biology), taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segmentation (biology), segments are fused into two Tagma (biology), tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindrical Gl ...
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