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Gasteracantha Flava
''Gasteracantha flava'' is a species of spider described in 1849 from Chile. The spider's abdomen bears 14 spines (six on each side and two in the rear) and is yellow in color with brown or black sigilla and a strongly wrinkled ventral side. The World Spider Catalog currently treats this taxon as a spiny orb-weaver spider in the genus '' Gasteracantha''. In 1849, H. Nicolet included it in the genus ''Gasteracantha'' along with 18 other species he described from Chile. Nicolet described ''G. flava'' as being closely allied to another species described at the same time, ''Gasteracantha spissa'', which had the same number and shape of spines and was very similar. Subsequent authors refined Nicolet's species, and in a 1996 publication Herbert Levi wrote, "All Nicolet's species seem to belong in ''Phoroncidia'' ( Theridiidae)." Levi transferred the 14-spined taxon ''spissa'', described by Nicolet as very similar to ''G. flava'', to the genus ''Phoroncidia ''Phoroncidia'' is a genu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of , with a population of 17.5 million as of 2017. It shares land borders with Peru to the north, Bolivia to the north-east, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish. Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. In 1818, after declaring in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Spider Terms
This glossary describes the terms used in formal descriptions of spiders; where applicable these terms are used in describing other arachnids. Links within the glossary are shown . Terms A Abdomen or opisthosoma: One of the two main body parts ( tagmata), located towards the posterior end; see also Abdomen § Other animals Accessory claw: Modified at the tip of the in web-building spiders; used with to grip strands of the web Anal tubercle: A small protuberance (tubercule) above the through which the anus opens Apodeme → Apophysis (plural apophyses): An outgrowth or process changing the general shape of a body part, particularly the appendages; often used in describing the male → Atrium (plural atria): An internal chamber at the entrance to the in female haplogyne spiders B Bidentate: Having two Book lungs: Respiratory organs on the ventral side (underside) of the , in front of the , opening through narrow slits; see also Book lungs Branchial operculum â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orb-weaver Spider
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 of the group. Araneids have eight similar eyes, hairy or spiny legs, and no stridulating organs. The family has a cosmopolitan distribution, including many well-known large or brightly colored garden spiders. With 3,108 species in 186 genera worldwide, the Araneidae comprise the third-largest family of spiders (behind the Salticidae and Linyphiidae). Araneid webs are constructed in a stereotypical fashion, where a framework of nonsticky silk is built up before the spider adds a final spiral of silk covered in sticky droplets. Orb webs are also produced by members of other spider families. The long-jawed orb weavers (Tetragnathidae) were formerly included in the Araneidae; they are closely related, being part of the superfamily Arane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasteracantha
''Gasteracantha'' is a genus of orb-weaver spiders first named by Carl Jakob Sundevall in 1833. Species of the genus are known as spiny-backed orb-weavers, spiny orb-weavers, or spiny spiders. The females of most species are brightly colored with six prominent spines on their broad, hardened, shell-like abdomens. The name ''Gasteracantha'' is derived from the Greek (), meaning "belly, abdomen", and (), meaning "thorn, spine". Spiny-backed orb-weavers are sometimes colloquially called "crab spiders" because of their shape, but they are not closely related to the true crab spiders. Other colloquial names for certain species include thorn spider, star spider, kite spider, or jewel spider. Members of the genus exhibit strong sexual dimorphism. Females are several times larger than males, which lack prominent spines or bright colors. ''Gasteracantha'' species are distributed worldwide in tropical and subtropical climates. The genus is most diverse in tropical Asia, from India t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert Levi
Herbert Walter Levi (January 3, 1921 – November 3, 2014) was professor emeritus of zoology and curator of arachnology at the Museum of Comparative Zoology, Harvard University. He was born in Germany, educated there and at Leighton Park School, Reading in England. He then received his higher education at the University of Connecticut and the University of Wisconsin. Levi authored about 150 scientific papers on spiders and on biological conservation. He is the author of the popular Golden Guide ''Spiders and their Kin'', with Lorna Rose Levi (his wife) and Herbert Spencer Zim. Levi received the 2007 Eugene Simon Award from the International Society of Arachnology "for his immense influence on US spider research". He was an elected honorary member of the American Arachnological Society. Levi was an editorial board member for the ''Journal of Arachnology''. The pseudoscorpion genus ''Levichelifer'', the spider species ''Anisaedus levii'' and the whip spider species ''Phrynus levii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theridiidae
Theridiidae, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders, is a large family of Araneomorphae, araneomorph spiders first described by Carl Jakob Sundevall in 1833. This diverse, globally distributed family includes over 3,000 species in 124 genus, genera, and is the most common arthropod found in human dwellings throughout the world. Theridiid spiders are both Entelegynae, entelegyne, meaning that the females have a genital plate, and Cribellum, ecribellate, meaning that they spin sticky capture silk instead of woolly silk. They have a comb of serrated bristles (setae) on the Arthropod leg, tarsus of the fourth leg. The family includes some model organisms for research, including the List of medically significant spider bites, medically important Latrodectus, widow spiders. They are important to studies characterizing their venom and its clinical manifestation, but widow spiders are also used in research on spider silk and sexual biology, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoroncidia
''Phoroncidia'' is a genus of comb-footed spiders that was first described by J. O. Westwood in 1835. Species it contains seventy-nine species and one subspecies, found worldwide: *'' P. aciculata'' Thorell, 1877 – Indonesia (Sulawesi) *'' P. aculeata'' Westwood, 1835 (type) – India, China *'' P. alishanensis'' Chen, 1990 – Taiwan *'' P. altiventris'' Yoshida, 1985 – Japan *'' P. alveolata'' ( Simon, 1903) – Equatorial Guinea *'' P. ambatolahy'' Kariko, 2014 – Madagascar *'' P. americana'' ( Emerton, 1882) – USA, Canada, Cuba, Jamaica *'' P. argoides'' (Doleschall, 1857) – Indonesia (Ambon) *'' P. aurata'' O. Pickard-Cambridge, 1877 – Madagascar *'' P. bifrons'' (Simon, 1895) – Philippines *'' P. biocellata'' (Simon, 1893) – Brazil *'' P. bukolana'' Barrion & Litsinger, 1995 – Philippines *'' P. capensis'' (Simon, 1895) – South Africa *'' P. concave'' Yin & Xu, 2012 – China *'' P. coracina'' (Simon, 1899) – Indonesia (Sumatra) *'' P. cribrata'' (Sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoroncidia Spissa
''Phoroncidia'' is a genus of comb-footed spiders that was first described by J. O. Westwood in 1835. Species it contains seventy-nine species and one subspecies, found worldwide: *'' P. aciculata'' Thorell, 1877 – Indonesia (Sulawesi) *'' P. aculeata'' Westwood, 1835 (type) – India, China *'' P. alishanensis'' Chen, 1990 – Taiwan *'' P. altiventris'' Yoshida, 1985 – Japan *'' P. alveolata'' ( Simon, 1903) – Equatorial Guinea *'' P. ambatolahy'' Kariko, 2014 – Madagascar *'' P. americana'' ( Emerton, 1882) – USA, Canada, Cuba, Jamaica *'' P. argoides'' (Doleschall, 1857) – Indonesia (Ambon) *'' P. aurata'' O. Pickard-Cambridge, 1877 – Madagascar *'' P. bifrons'' (Simon, 1895) – Philippines *'' P. biocellata'' (Simon, 1893) – Brazil *'' P. bukolana'' Barrion & Litsinger, 1995 – Philippines *'' P. capensis'' (Simon, 1895) – South Africa *'' P. concave'' Yin & Xu, 2012 – China *'' P. coracina'' (Simon, 1899) – Indonesia (Sumatra) *'' P. crib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Araneidae 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] |
Spiders Described In 1849
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 a separate th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
