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Caerostris Cowani
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *''Caerostris almae'' Gregorič, 2015 – Madagascar *''Caerostris bojani'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Sexcuspidata
''Caerostris sexcuspidata'', also known as the common bark spider, is a species of spider that occurs in Southern Africa, and on islands off the east coast of Africa, such as Madagascar, the Comores and Aldabra Island Aldabra is the world's second-largest coral atoll, lying south-east of the continent of Africa. It is part of the Aldabra Group of islands in the Indian Ocean that are part of the Outer Islands of the Seychelles, with a distance of 1,120 k .... It is a mainly nocturnal orb-web spider, the female constructing a large orb web stretching between trees or shrubs. During daylight hours she dismantles her web and retires to a nearby branch, tucking her legs, which are covered with fine hair, against her body, to blend with the surroundings to resemble part of a branch, complete with growth bulges. Though mainly nocturnal, these spiders may be found on their webs in shady, forested areas during the day. The dorsal surface is cryptically coloured with horny projecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Pero
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *''Caerostris almae'' Gregorič, 2015 – Madagascar *''Caerostris bojani'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiders Of Africa
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Vicina
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *'' Caerostris almae'' Gregorič, 2015 – Madagascar *'' Caerostris bojani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Mayottensis
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *'' Caerostris almae'' Gregorič, 2015 – Madagascar *'' Caerostris bojani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Indica
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *'' Caerostris almae'' Gregorič, 2015 – Madagascar *'' Caerostris bojani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Hirsuta
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *'' Caerostris almae'' Gregorič, 2015 – Madagascar *'' Caerostris bojani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Ecclesiigera
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic group. Species it contains eighteen species: *'' Caerostris almae'' Gregorič, 2015 – Madagascar *'' Caerostris bojani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Darwini
Darwin's bark spider (''Caerostris darwini'') is an orb-weaver spider that produces the largest known orb webs, ranging from , with bridge lines spanning up to . The spider was discovered in Madagascar in the Andasibe-Mantadia National Park in 2009. Its silk is the toughest biological material ever studied. Its tensile strength is 1.6 GPa. The species was named in honour of the naturalist Charles Darwin on November 24, 2009—precisely 150 years after the publication of '' The Origin of Species''. Description Darwin's bark spider (''Caerostris darwini'') is an orb-weaver spider – a member of the family Araneidae. Like other spiders of the genus, they display extreme sexual dimorphism, with large females and small males. Females vary in total body length from about , males being around one third or less of this length, at about . In a captive bred population, females were 14 (1.3–195) times heavier and 2.3 (1–4) times larger than males.Gregorič, M. et al. (2016)"Spi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caerostris Corticosa
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
