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Cyclocosmia ricketti (Chinese: 里氏盤腹蛛; pinyin: Lǐ shì pán fù zhū), commonly known as the Chinese hourglass spider (which generally refers to its genus), is a species of trapdoor spider of the genus Cyclocosmia, which refers specifically to mygalomorphus animals.
The Sydney brown trapdoor spider (Arbanitis rapax, synonym Misgolas rapax) is a spider in the family Idiopidae, found primarily around Sydney, Australia.It is usually shy and retiring and is often confused with the Sydney funnel-web spider, which is one of the most venomous spiders in the world.
Ctenizidae (/ ˈ t ə n ɪ z ə d iː / tə-NIZZ-ə-dee) [2] is a small family of mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation, and silk. . They may be called trapdoor spiders, as are other, similar species, such as those of the families Liphistiidae, Barychelidae, and Cyrtaucheniidae, and some species in the Idiopidae and Nemesiid
Cyclocosmia is a genus of mygalomorph trapdoor spiders in the family Halonoproctidae, first described by Anton Ausserer in 1871. [4] Originally placed with the Ctenizidae, when the family split in 2018, this genus was placed with the Halonoproctidae as the type genus. [5]
The Australian funnel-web spiders (family Atracidae), such as the Sydney funnel-web spider Atrax robustus (a mygalomorph spider, not to be confused with the araneomorph funnel-weaver or grass spiders) are regarded as among the most venomous in the world. They react vigorously to threats and, reputedly, will more often attempt to bite than run away.
This group of spiders comprises mostly heavy-bodied, stout-legged spiders including tarantulas, Australian funnel-web spiders, mouse spiders, and various families of spiders commonly called trapdoor spiders. Like the "primitive" suborder of spiders Mesothelae, they have two pairs of book lungs, and downward-pointing chelicerae. Because of this ...
Like other trapdoor spiders, Eucteniza species construct burrows in the ground with a hinged lid, from which they wait to ambush passing prey. Burrows and prey have been studied in E. relata, and other species are believed to have similar behavior. The burrow consists of an un-branched tube, lined with silk and soil, ranging from 7 to 25 cm (2. ...
The trapdoor is a form of safety and ways of ambushing prey. Idiopidae adapt and live in many various environments as seen by the map on the far right, which leads to the various species to co-exist with other Idiopidae and other spiders outside of the family. [4] Idiopidae are not poisonous and their bites are not fatal to humans.