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Segestriidae
Tube-dwelling spiders (Segestriidae) are a family of araneomorph spiders first described by Eugène Simon in 1893. It consists of five genera, two large and widespread, '' Segestria'' and '' Ariadna'', and three smaller genera, '' Citharoceps'', '' Gippsicola'' and '' Indoseges''. They are haplogyne spiders, related to the Dysderidae and placed in clade or superfamily Dysderoidea. Members of this family are easily recognized because their first three pairs of legs are arranged forward instead of two and they have six eyes instead of eight, arranged in a semicircle. The leg structure appears to be an adaptation for living in silken tubes. Unlike those of the atypical tarantulas, these tubes may branch and are often built in tree bark fissures, as well as under stones. Both ''Segestria'' and ''Ariadna'' live in North America, South America, Eurasia, Africa and New Zealand, though ''Ariadna'' also lives in Australia. Genera , the World Spider Catalog accepts the following gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Segestriidae Species
This page lists all described genera and species of the spider family Segestriidae. , the World Spider Catalog accepts 142 species in 5 genera: ''Ariadna'' '' Ariadna'' Audouin, 1826 *'' Ariadna abbreviata'' Marsh, Stevens & Framenau, 2022 – Tasmania *'' Ariadna abrilae'' Grismado, 2008 – Chile *'' Ariadna algarvensis'' Wunderlich, 2011 – Portugal *'' Ariadna alta'' Marsh, Stevens & Framenau, 2022 – Tasmania *'' Ariadna amabilia'' Marsh, Stevens & Framenau, 2022 – Tasmania *'' Ariadna araucana'' Grismado, 2008 – Chile *'' Ariadna arenacea'' (Marsh, Stevens, Bradford & Framenau, 2022) – Australia (South Australia) *'' Ariadna arthuri'' Petrunkevitch, 1926 – USA, Caribbean *'' Ariadna aurea'' Giroti & Brescovit, 2018 – Brazil *'' Ariadna barbigera'' Simon, 1905 – Chatham Islands *'' Ariadna bellatoria'' Dalmas, 1917 – New Zealand *'' Ariadna bellatula'' (Marsh, Stevens, Bradford & Framenau, 2022) – Australia (South Australia) *''Ariadna bicolor'' (Hentz, 184 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ariadna
''Ariadna'' is a genus of tube-dwelling spider (family Segestriidae). Species , the World Spider Catalog accepted the following species: *'' Ariadna abbreviata'' Marsh, Stevens & Framenau, 2022 – Tasmania *'' Ariadna abrilae'' Grismado, 2008 – Chile *'' Ariadna algarvensis'' Wunderlich, 2011 – Portugal *'' Ariadna alta'' Marsh, Stevens & Framenau, 2022 – Tasmania *'' Ariadna amabilia'' Marsh, Stevens & Framenau, 2022 – Tasmania *'' Ariadna araucana'' Grismado, 2008 – Chile *'' Ariadna arenacea'' (Marsh, Stevens, Bradford & Framenau, 2022) – Australia (South Australia) *'' Ariadna arthuri'' Petrunkevitch, 1926 – USA, Caribbean *'' Ariadna aurea'' Giroti & Brescovit, 2018 – Brazil *'' Ariadna barbigera'' Simon, 1905 – Chatham Islands *'' Ariadna bellatoria'' Dalmas, 1917 – New Zealand *'' Ariadna bellatula'' (Marsh, Stevens, Bradford & Framenau, 2022) – Australia (South Australia) *''Ariadna bicolor'' (Hentz, 1842) – USA, Mexico *''Ariadna bilineata'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dysderoidea
The Dysderoidea are a clade or superfamily of araneomorph spiders. The monophyly of the group, initially consisting of the four families Dysderidae, Oonopidae, Orsolobidae and Segestriidae, has consistently been recovered in phylogenetic studies. In 2014, a new family, Trogloraptoridae, was created for a recently discovered species ''Trogloraptor marchingtoni''. It was suggested that Trogloraptoridae may be the most basal member of the Dysderoidea clade. However, a later study found that Trogloraptoridae was placed outside the Dysderoidea and concluded that it was not part of this clade. Phylogeny Dysderoidea are members of the Haplogynae clade: spiders with simpler copulatory organs (palpal bulbs and epigynes) than other araneomorphs. One hypothesis for relationships within the Haplogynae is shown below. The status of the Trogloraptoridae is unclear. The family was not included in one study which otherwise found the same topography, but it was placed outside even the Filista ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gippsicola
''Gippsicola'' is a genus of Australian tube dwelling spiders that was first described by Henry Roughton Hogg in 1900. It is no longer considered a junior synonym of '' Segestria'' due to anatomical differences in the pedipalps of males and the receptaculum in females. Species it contains four species, found in New South Wales, Victoria, and Queensland: *'' Gippsicola lineata'' Giroti & Brescovit, 2017 – Australia (Queensland) *'' Gippsicola minuta'' Giroti & Brescovit, 2017 – Australia (Queensland) *'' Gippsicola raleighi'' Hogg, 1900 (type) – Australia (Western, South, Victoria) *'' Gippsicola robusta'' Giroti & Brescovit, 2017 – Australia (Queensland, New South Wales) See also * List of Segestriidae species This page lists all described genera and species of the spider family Segestriidae. , the World Spider Catalog accepts 142 species in 5 genera: ''Ariadna'' '' Ariadna'' Audouin, 1826 *'' Ariadna abbreviata'' Marsh, Stevens & Framenau, 2022 – ... Reference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segestria (spider)
''Segestria'' is a genus of tube dwelling spiders that was first described by Pierre André Latreille in 1804. Species it contains 21 species and one subspecies, found mainly in Eurasia, though some species are found in the Americas, two in North Africa, and one in New Zealand and one in Madagascar: * '' Segestria bavarica'' C. L. Koch, 1843 — Europe to Azerbaijan * '' Segestria bella'' Chamberlin & Ivie, 1935 — USA * '' Segestria cavernicola'' Kulczyński, 1915 — Italy * '' Segestria croatica'' Doleschall, 1852 — Croatia * '' Segestria danzantica'' Chamberlin, 1924 — Mexico * '' Segestria davidi'' Simon, 1884 — Syria * '' Segestria fengi'' (Fomichev & Marusik, 2020) — China * '' Segestria florentina'' (Rossi, 1790) (type) — Europe to Georgia. Introduced to Brazil, Uruguay, Argentina * '' Segestria fusca'' Simon, 1882 — Portugal, Spain, France, Italy * '' Segestria inda'' Simon, 1906 — India * '' Segestria madagascarensis'' Keyserling, 1877 — Madagascar * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indoseges
''Indoseges'' is a genus of south Asian tube dwelling spiders. It was first described by S. R. Choudhury, Manju Siliwal and S. K. Das in 2021, and it has only been found in India. Species it contains five species: *'' I. chilika'' Siliwal, Das, Choudhury & Giroti, 2021 – India *'' I. malkangiri'' Choudhury, Siliwal, Das & Giroti, 2021 (type) – India *'' I. narayani'' Choudhury, Siliwal, Das & Giroti, 2021 – India *'' I. satkosia'' Das, Siliwal, Choudhury & Giroti, 2021 – India *'' I. sushildutta'' Siliwal, Das, Choudhury, & Giroti, 2021 – India See also * List of Segestriidae species This page lists all described genera and species of the spider family Segestriidae. , the World Spider Catalog accepts 142 species in 5 genera: ''Ariadna'' '' Ariadna'' Audouin, 1826 *'' Ariadna abbreviata'' Marsh, Stevens & Framenau, 2022 – ... References Segestriidae Araneomorphae genera Spiders of the Indian subcontinent {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citharoceps
''Citharoceps'' is a genus of spiders in the family Segestriidae Tube-dwelling spiders (Segestriidae) are a family of araneomorph spiders first described by Eugène Simon in 1893. It consists of five genera, two large and widespread, '' Segestria'' and '' Ariadna'', and three smaller genera, '' Citharoceps'', .... It was first described in 1924 by Chamberlin. Species , the genus contained two species: *'' Citharoceps cruzana'' (Chamberlin & Ivie, 1935) - US *'' Citharoceps fidicina'' Chamberlin, 1924 - US, Mexico References Segestriidae Araneomorphae genera Spiders of North America {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segestria Florentina
''Segestria florentina'' is the largest European segestriid spider. Some vernacular names are green-fanged tube web spider and cellar spider, although the latter is not exclusive to this species. Description Females can reach a body length of 22 mm, males up to 15 mm. This species is much darker than others of the same genus. While subadult spiders have a greyish opisthosoma with a marking similar to '' Segestria senoculata'', adults are of a uniform black, sometimes with a green iridescent shine, especially on the chelicerae,Bellmann, H. (1997). Kosmos-Atlas Spinnentiere Europas. ''Kosmos''. which reflect with a striking green. The sexes are similar. Adults occur from June to November. Habits They spin a tubular web, often in cracks of buildings. Six or more silken lines radiate from it, and the spider waits in the entrance, touching the lines with the frontal six legs. Prey triggering these lines get caught, and the spider immediately retreats again to eat it. Howeve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araneomorphae
The Araneomorphae (also called the Labidognatha or "true spiders") are an infraorder of spiders. They are distinguishable by chelicerae (fangs) that point diagonally forward and cross in a pinching action, in contrast to the Mygalomorphae (tarantulas and their close kin), where they point straight down. Araneomorphs comprise the vast majority (about 93%) of living spiders. Distinguishing characteristics Most spider species are Araneomorphae, which have chelicerae, fangs that face towards each other, increasing the orientations that they can employ during prey-capture. They have fewer book lungs (when present) – usually one pair – and the females typically live one year. The Mygalomorphae have chelicerae, fangs that face towards the ground, and which are parallel to the long axis of the spider's body, thus they have only one orientation they can employ during prey capture. They have two pairs of book lungs, and the females often live many years. Image:Cheiracanthium pun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haplogyne
The Haplogynae or haplogynes are one of the two main groups into which araneomorph spiders have traditionally been divided, the other being the Entelegynae. Morphological phylogenetic studies suggested that the Haplogynae formed a clade; more recent molecular phylogenetic studies refute this, although many of the ecribellate haplogynes do appear to form a clade, Synspermiata. Unlike the Entelegynae, haplogynes lack hardened (sclerotized) female genitalia (epigynes). Most of the species within this group have six eyes, as opposed to most other spiders. Spiders in the genus '' Tetrablemma'' ( Tetrablemmidae) have only four eyes, as do some members of the family Caponiidae; caponiids may even have only two eyes. However, spiders in the family Plectreuridae have the normal eight eyes. Phylogeny The Haplogynae are one of the two major groups into which araneomorph spiders were traditionally divided, the other being the Entelegynae. In 2005, Coddington summarized the relationship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasia
Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents dates back to classical antiquity, antiquity, but their borders have historically been subject to change. For example, the ancient Greeks originally included Africa in Asia but classified Europe as separate land. Eurasia is connected to Africa at the Suez Canal, and the two are sometimes combined to describe the largest contiguous landmass on Earth, Afro-Eurasia. History Eurasia has been the host of many ancient civilizations, including those based in Mesopotamia, Egypt, the Indus Valley and China. In the Axial Age (mid-first millennium BCE), a continuous belt of civilizations stretched through the Eurasian Subtropics, subtropical zone from the Atlantic to the Pacific. This belt became the mainstream of world history for two millennia. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''Ēṓs'', 'Eos, Dawn') and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch.See: *Letter from William Whewell to Charles Lyell dated 31 January 1831 in: * From p. 55: "The period next antecedent we shall call Eocene, from ήως, aurora, and χαινος, recens, because the extremely small proportion of living species contained in these strata, indicates what may be considered the first commencement, or ''dawn'', of the existing state of the animate creation." The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isoto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
