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Idiosoma

Encyclopedia of Life · EOL (see source)

EntityQ3018006· pop 12· linked from 37 articles

Idiosoma is a genus of Australian armoured trapdoor spiders that was first described by Anton Ausserer in 1871. Originally placed with the Ctenizidae, it was moved to the armoured trapdoor spiders in 1985. The name is derived from the Greek (idios), meaning "individual, unique", and (soma), meaning "body", referring to the distinctive structure of the abdomen.

Species

GENUS

  1. KingdomAnimalia
  2. PhylumArthropoda
  3. ClassArachnida
  4. OrderAraneae
  5. FamilyIdiopidae

Idiosoma is een geslacht van spinnen uit de familie van de Idiopidae (Valdeurspinnen). Soorten Idiosoma hirsutum Main, 1952 Idiosoma nigrum Main, 1952 Idiosoma sigillatum (O. P.-Cambridge, 1870)

via GBIF

Museum specimens

Specimen records
2,121
Family
Idiopidae
Collections
NMV, AM, QM
Recorded in
Australia

~4 min read

Encyclopedic overview

5 sections
Contents
  • Description
  • Behaviour
  • Species
  • References
  • Further reading

Idiosoma is a genus of Australian armoured trapdoor spiders that was first described by Anton Ausserer in 1871. Originally placed with the Ctenizidae, it was moved to the armoured trapdoor spiders in 1985. The name is derived from the Greek (idios), meaning "individual, unique", and (soma), meaning "body", referring to the distinctive structure of the abdomen.

==Description== The skin of their abdomen is hardened, with a flattened end and deep grooves running along the sides. The thickened skin helps to reduce water loss in its dry habitat. It also serves as a kind of plug to shield itself from predators. This phenomenon is called phragmosis and occurs in perfection in the spider genus Cyclocosmia (Ctenizidae). However, some parasitic wasps have evolved paper-thin abdomens and long, slender ovipositors and lay their eggs on the softer skin at the front of the spider's abdomen.

Excerpted from Wikipedia’s “Idiosoma” article, available under the CC BY-SA 4.0 licence.