Segestrioides
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Segestrioides
''Segestrioides'' is a genus of South American coneweb spiders that was first described by Eugen von Keyserling in 1883. Originally placed with the recluse spiders, it was moved to the coneweb spiders in 1983. Species it contains four species: *'' Segestrioides badia'' (Simon Simon may refer to: People * Simon (given name), including a list of people and fictional characters with the given name Simon * Simon (surname), including a list of people with the surname Simon * Eugène Simon, French naturalist and the genus ..., 1903) – Brazil *'' Segestrioides bicolor'' Keyserling, 1883 ( type) – Peru *'' Segestrioides copiapo'' Platnick, 1989 – Chile *'' Segestrioides tofo'' Platnick, 1989 – Chile References Araneomorphae genera Diguetidae Spiders of South America Taxa named by Eugen von Keyserling {{Araneomorphae-stub ...
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Segestrioides Bicolor
''Segestrioides'' is a genus of South American coneweb spiders that was first described by Eugen von Keyserling in 1883. Originally placed with the recluse spiders, it was moved to the coneweb spiders in 1983. Species it contains four species: *'' Segestrioides badia'' ( Simon, 1903) – Brazil *'' Segestrioides bicolor'' Keyserling, 1883 (type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...) – Peru *'' Segestrioides copiapo'' Platnick, 1989 – Chile *'' Segestrioides tofo'' Platnick, 1989 – Chile References Araneomorphae genera Diguetidae Spiders of South America Taxa named by Eugen von Keyserling {{Araneomorphae-stub ...
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Segestrioides Badia
''Segestrioides'' is a genus of South American coneweb spiders that was first described by Eugen von Keyserling in 1883. Originally placed with the recluse spiders, it was moved to the coneweb spiders in 1983. Species it contains four species: *'' Segestrioides badia'' ( Simon, 1903) – Brazil *''Segestrioides bicolor'' Keyserling, 1883 (type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...) – Peru *'' Segestrioides copiapo'' Platnick, 1989 – Chile *'' Segestrioides tofo'' Platnick, 1989 – Chile References Araneomorphae genera Diguetidae Spiders of South America Taxa named by Eugen von Keyserling {{Araneomorphae-stub ...
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Segestrioides Copiapo
''Segestrioides'' is a genus of South American coneweb spiders that was first described by Eugen von Keyserling in 1883. Originally placed with the recluse spiders, it was moved to the coneweb spiders in 1983. Species it contains four species: *''Segestrioides badia'' ( Simon, 1903) – Brazil *''Segestrioides bicolor'' Keyserling, 1883 (type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...) – Peru *'' Segestrioides copiapo'' Platnick, 1989 – Chile *'' Segestrioides tofo'' Platnick, 1989 – Chile References Araneomorphae genera Diguetidae Spiders of South America Taxa named by Eugen von Keyserling {{Araneomorphae-stub ...
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Segestrioides Tofo
''Segestrioides'' is a genus of South American coneweb spiders that was first described by Eugen von Keyserling in 1883. Originally placed with the recluse spiders, it was moved to the coneweb spiders in 1983. Species it contains four species: *''Segestrioides badia'' ( Simon, 1903) – Brazil *''Segestrioides bicolor'' Keyserling, 1883 (type) – Peru *''Segestrioides copiapo ''Segestrioides'' is a genus of South American coneweb spiders that was first described by Eugen von Keyserling in 1883. Originally placed with the recluse spiders, it was moved to the coneweb spiders in 1983. Species it contains four species ...'' Platnick, 1989 – Chile *'' Segestrioides tofo'' Platnick, 1989 – Chile References Araneomorphae genera Diguetidae Spiders of South America Taxa named by Eugen von Keyserling {{Araneomorphae-stub ...
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Diguetidae
Coneweb spiders (Diguetidae) are six-eyed haplogyne spiders that live in tangled space webs, fashioning a cone-like central retreat where they hide and lay eggs. It is a small family, containing only two genera with fifteen species and is confined to the New World, preferring deserts. Members of the genus '' Diguetia'' usually build their webs in shrubs or between cactus pads. They have the same eye arrangement as the venomous recluse spiders (family ''Sicariidae''), but none are known to be harmful to humans. Taxonomy The group was first created by F. O. Pickard-Cambridge in 1899 as the subfamily Diguetiinae of the family Scytodidae. It was raised to the rank of family by Willis J. Gertsch using the spelling "Diguetidae". Pickard-Cambridge's use of double "i" is correct according to Article 29.3 of the International Code of Zoological Nomenclature, since the name is based on the genus ''Diguetia''. In 2004, Jörg Wonderlich suggested reducing it again to a subfamily, this time ...
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Coneweb Spider
Coneweb spiders (Diguetidae) are six-eyed haplogyne spiders that live in tangled space webs, fashioning a cone-like central retreat where they hide and lay eggs. It is a small family, containing only two genera with fifteen species and is confined to the New World, preferring deserts. Members of the genus '' Diguetia'' usually build their webs in shrubs or between cactus pads. They have the same eye arrangement as the venomous recluse spiders (family ''Sicariidae''), but none are known to be harmful to humans. Taxonomy The group was first created by F. O. Pickard-Cambridge in 1899 as the subfamily Diguetiinae of the family Scytodidae. It was raised to the rank of family by Willis J. Gertsch using the spelling "Diguetidae". Pickard-Cambridge's use of double "i" is correct according to Article 29.3 of the International Code of Zoological Nomenclature, since the name is based on the genus ''Diguetia''. In 2004, Jörg Wonderlich suggested reducing it again to a subfamily, this ti ...
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Eugen Von Keyserling
Eugen von Keyserling (22 March 1833 in Pockroy, Lithuania – 4 April 1889 in Dzierżoniów, Silesia) was a Baltic-German arachnologist. He studied in the University of Tartu. He was the author of ''Die Spinnen Amerikas'', and completed ''Die Arachniden Australiens'' (1871–1883) on behalf of 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 medic .... External links * German arachnologists University of Tartu alumni People from Pakruojis Baltic-German people 1833 births 1889 deaths 19th-century German zoologists {{germany-zoologist-stub ...
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Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ...
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Eugène Simon
Eugène Louis Simon (; 30 April 1848 – 17 November 1924) was a French naturalist who worked particularly on insects and spiders, but also on birds and plants. He is by far the most prolific spider taxonomist in history, describing over 4,000 species. Work on spiders His most significant work was ''Histoire Naturelle des Araignées'' (1892–1903), an encyclopedic treatment of the spider genera of the world. It was published in two volumes of more than 1000 pages each, and the same number of drawings by Simon. Working at the Muséum National d'Histoire Naturelle in Paris, it took Simon 11 years to complete, while working at the same time on devising a taxonomic scheme that embraced the known taxa. Simon described a total of 4,650 species, and as of 2013 about 3,790 species are still considered valid. The International Society of Arachnology offers a Simon Award recognising lifetime achievement. The Eocene fossil spider species '' Cenotextricella simoni'' was named in his ...
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Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ...
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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 ...
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Sicariidae
Sicariidae is a family of six-eyed venomous spiders known for their potentially necrotic bites. The family consists of three genera and about 160 species. Well known spiders in this family include the brown recluse spider and the six-eyed sand spider. Description ''Loxosceles'', commonly known as "recluse spiders" or "violin spiders", is distributed nearly worldwide in warmer areas. ''Hexophthalma'' and '' Sicarius'', commonly known as "sand spiders" or "assassin spiders", live in the deserts of southern Africa and South to Central America, respectively. They are known for their self-burying behavior and the ability to go for long periods without food or water. All members have six eyes arranged in three groups of two (dyads). Violin spiders are usually brownish with a darker brown characteristic violin marking on the cephalothorax. They are also haplogyne, meaning the females possessing unsclerotised genitals. ''Hexophthalma'' and ''Sicarius'' resemble crab spiders and lack ...
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