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Encyclopedia > Trapdoor spider
?Trapdoor spiders
Trapdoor spider in burrow
Trapdoor spider in burrow
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Suborder: Mygalomorphae
Superfamily: Ctenizoidea
Family: Ctenizidae
Thorell, 1887
Diversity
9 genera, 120 species

Genera

Bothriocyrtum
Cyclocosmia
Ummidia
Cteniza
several others, see text Download high resolution version (800x612, 263 KB)Trap Door Spider Taken by User:Fir0002 File links The following pages link to this file: Trap Trapdoor spider Categories: GFDL images ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Myxozoa (slime animals) Superphylum Deuterostomia (blastopore becomes anus) Chordata (vertebrates, etc. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - Trilobites (extinct) Subphylum Chelicerata Arachnida - Spiders, Scorpions, etc. ... Orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Scorpiones Solifugae Uropygi The arachnids, Arachnida, are a class of invertebrate animals in the subphylum Chelicerata. ... For other uses, see Spider (disambiguation). ... Families Antrodiaetidae (folding trapdoor spider) Atypidae (atypical tarantula) Ctenizidae (trapdoor spider) Cyrtaucheniidae (wafer trapdoor spider) Dipluridae (funnel-web tarantula) Hexathelidae (venomous funnel-web tarantula) Mecicobothriidae (dwarf tarantulas) Theraphosidae (tarantula) The Mygalomorphae, (also called the Orthognatha), are an infraorder of spiders. ... Tord Tamerlan Teodor Thorell (May 3, 1830 - December 22, 1901) was a Swedish arachnologist. ... 1887 (MDCCCLXXXVII) is a common year starting on Saturday (click on link for calendar) of the Gregorian calendar or a common year starting on Monday of the Julian calendar. ... This page lists all described species of the spider family Ctenizidae as of Oct. ... Image File history File links Distribution. ... Diversity 4 species Species See text. ...

Trapdoor spiders (superfamily Ctenizoidea, family Ctenizidae) are medium-sized mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation and silk. The trapdoor is difficult to see when it is closed because the plant and soil materials effectively camouflage it. The trapdoor is hinged on one side with silk. The spiders, which are usually nocturnal, typically wait for prey while holding onto the underside of the door with the claws on their tarsi. Prey is captured when insects or other arthropods venture too close to the half-open trapdoor at night. The spider detects the prey by vibrations and when it comes close enough, the spider pops out of its burrow and captures it. Male trapdoor spiders can overcome the females' aggressive reactions to their approach, but it is not known how. Females never travel far from their burrows. Eggs are laid in sacs in the female's burrow. Enemies of the trapdoor spider include certain pompilid (spider) wasps, which seek out the burrows and manage to gain entrance. They sting the owner and lay their eggs (usually one per spider) on its body. Families Atypidae (atypical tarantula) Antrodiaetidae (folding trapdoor spider) Mecicobothriidae (dwarf tarantulas) Hexathelidae (venomous funnel-web tarantula) Dipluridae (funnel-web tarantula) Cyrtaucheniidae (wafer trapdoor spider) Ctenizidae (trapdoor spider) Theraphosidae (tarantula) Source: Platnick 2003 The Mygalomorphae, previously called the Orthognatha, are a suborder of spiders. ... Families Suborder Mesothelae     Liphistiidae (primitive burrowing spiders) Suborder Mygalomorphae     Atypidae (atypical tarantula)     Antrodiaetidae (folding trapdoor spider)     Mecicobothriidae (dwarf tarantulas)     Hexathelidae (venomous funnel-web tarantula)     Dipluridae (funnel-web tarantula)     Cyrtaucheniidae (wafer trapdoor spider)     Ctenizidae (trapdoor spider)     Theraphosidae (tarantula) Suborder Araneomorphae     Hypochilidae (lampshade spider)     Filistatidae (crevice weaver)     Sicariidae (recluse spider)     Scytodidae (spitting... A nocturnal animal is one that sleeps during the day and is active at night - the opposite of the human (diurnal) schedule. ... FIG. 268– Bones of the right foot. ... Genera many (35 in North America)   Spider wasps, also called pompilid wasps or spider-hunting wasps, are insects belonging to a diverse family named Pompilidae, of the order Hymenoptera. ...

Trapdoor Spider, Ummidia sp.
Trapdoor Spider, Ummidia sp.

The taxonomy of trapdoor spiders is currently not well understood in the United States and many species of the common genus Ummidia remain undescribed. Ummidia is distributed across the southern United States. Bothriocyrtum californicum is the common trapdoor spider of the Pacific Coast. The strange genus Cyclocosmia includes four species, one in Florida, one in Georgia, one in Mexico and one in China. The discontinuous distribution is indicative of a primitive genus that was affected by continental drift. The spiders of this genus are unusual in having a mask-like hardened plate on the opisthosoma, which seems to act as a second door to exclude predators, like the spider wasps. There is a narrow part of the burrow of these spiders where the abdominal shield just barely fits. Cyclocosmia torreya builds burrows in moss banks along the Apalachicola River in Florida. Other genera of trapdoor spiders are found in other areas of the world. They actually may be more common than we may think because of their cryptic habits. They do tend to be localized in distribution and as such may be subject to extinction because of local habitat destruction. Malaysia has 8 species of Liphistius Liphistiidae spider, some of which are endemic to certain places such as a cave. Image File history File links Ummidia_sp. ... Image File history File links Ummidia_sp. ... Taxonomy (from Greek verb tassein = to classify and nomos = law, science, cf economy) may refer to: the science of classifying living things (see alpha taxonomy) a system of classification in some other field Taxonomy was once only the science of classifying living organisms, but later the word was applied in... In biology, a genus (plural genera) is a taxonomic grouping. ... This article or section does not cite its references or sources. ... The concept of continental drift was first proposed by Alfred Wegener. ... The opisthosoma is the posterior portion of the arachnids body behind the prosoma. ... Genera many (35 in North America)   Spider wasps, also called pompilid wasps or spider-hunting wasps, are insects belonging to a diverse family named Pompilidae, of the order Hymenoptera. ... View of the Apalachicola River near Fort Gadsden, Florida. ... The Liphistiidae are the most primitive living spiders, placed in their own suborder, called the Mesothelae. ...

Contents


Genera

  • Bothriocyrtum Simon, 1891 (USA, Mexico, Taiwan)
  • Conothele Thorell, 1878 (New Zealand, Australian region)
  • Cteniza Latreille, 1829 (Europe, Central Asia)
  • Cyclocosmia Ausserer, 1871 (USA to Guatemala, Thailand, China)
  • Cyrtocarenum Ausserer, 1871 (Greece, Turkey)
  • Hebestatis Simon, 1903 (Costa Rica, USA)
  • Latouchia Pocock, 1901 (Asia)
  • Stasimopus Simon, 1892 (South Africa)
  • Ummidia Thorell, 1875 (America, Mediterranean, Japan, Taiwan)

Diversity 4 species Species See text. ...

See also

This page lists all described species of the spider family Ctenizidae as of Oct. ... Diversity 111 families Families see table The Araneae are an order of the arthropod class Arachnida with about 40,000 described species, although there are probably many species that have escaped the human eye to this day, and lots of specimen stored in collections waiting to be described and classified. ...

References

  • Hendrixson, B.E. & Bond, J.E. (2004). A new species of Stasimopus from the Eastern Cape Province of South Africa (Araneae, Mygalomorphae, Ctenizidae), with notes on its natural history. Zootaxa 619: 1-14 PDF

External links

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Image File history File links Commons-logo. ... Wikimedia Commons logo by Reid Beels The Wikimedia Commons (also called Commons or Wikicommons) is a repository of free content images, sound and other multimedia files. ...

Arthropoda - Arachnida - Spider families (Araneae) Spider web

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Trapdoor spider - Wikipedia, the free encyclopedia (477 words)
Trapdoor spiders (superfamily Ctenizoidea, family Ctenizidae) are medium-sized mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation and silk.
The spiders, which are usually nocturnal, typically wait for prey while holding onto the underside of the door with the claws on their tarsi.
The spiders of this genus are unusual in having a mask-like hardened plate on the opisthosoma, which seems to act as a second door to exclude predators, like the spider wasps.
  More results at FactBites »

 
 

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