Barychelidae

Short description: Spider family

Brushed-footed trap-door spiders

Temporal range: Neogene–present

PreЄ

Sason robustum with nest
Scientific classification
Kingdom:  | Animalia
Phylum:  | Arthropoda
Subphylum:  | Chelicerata
Class:  | Arachnida
Order:  | Araneae
Infraorder:  | Mygalomorphae
Clade:  | Avicularioidea
Family:  | Barychelidae
Simon, 1889
Diversity
42 genera, 309 species

Barychelidae, also known as brushed trapdoor spiders, is a spider family with about 300 species in 42 genera.[1] Most spiders in this family build trapdoor burrows. For example, the 20 millimetres (0.79 in) long Sipalolasma builds its burrow in rotted wood, with a hinged trapdoor at each end. The 10 millimetres (0.39 in) long Idioctis builds its burrow approximately 5 centimetres (2.0 in) deep, just below the high tide level, sealing the opening with a thin trapdoor.[2]

Some species avoid flooding by plugging their burrows, while others can avoid drowning by trapping air bubbles within the hairs covering their bodies.[3] Some members of this group have a rake on the front surface of their chelicerae used for compacting burrow walls.[4] These spiders can run up glass like tarantulas, and some can stridulate, though it isn't audible to humans.[5]

## Contents

* 1 Distribution
* 2 Genera
* 3 References
* 4 External links

## Distribution

Barychelids are found in Australia , New Caledonia, South America, Africa, Madagascar , India , New Guinea, and Pacific islands.[1]

## Genera

Main page: Biology:List of Barychelidae species

(As of April 2019), the World Spider Catalog accepts the following genera:[1]

* Ammonius Thorell, 1899 — Cameroon
* Atrophothele Pocock, 1903 — Yemen
* Aurecocrypta Raven, 1994 — Australia
* Barycheloides Raven, 1994 — New Caledonia
* Barychelus Simon, 1889 — New Caledonia
* Cosmopelma Simon, 1889 — Brazil
* Cyphonisia Simon, 1889 — Africa
* Cyrtogrammomma Pocock, 1895 — Guyana
* Diplothele O. Pickard-Cambridge, 1891 — Sri Lanka, India
* Encyocrypta Simon, 1889 — New Caledonia
* Eubrachycercus Pocock, 1897 — Somalia
* Fijocrypta Raven, 1994 — Fiji
* Idioctis L. Koch, 1874 — Oceania, Africa, Singapore
* Idiommata Ausserer, 1871 — Australia
* Idiophthalma O. Pickard-Cambridge, 1877 — South America
* Mandjelia Raven, 1994 — Australia
* Monodontium Kulczyński, 1908 — Singapore, Papua New Guinea, Indonesia
* Moruga Raven, 1994 — Australia
* Natgeogia Raven, 1994 — New Caledonia
* Neodiplothele Mello-Leitão, 1917 — Brazil
* Nihoa Raven & Churchill, 1992 — Papua New Guinea, Vanuatu
* Orstom Raven, 1994 — New Caledonia
* Ozicrypta Raven, 1994 — Australia
* Paracenobiopelma Feio, 1952 — Brazil
* Pisenor Simon, 1889 — Africa
* Plagiobothrus Karsch, 1892 — Sri Lanka
* Psalistops Simon, 1889 — Venezuela, Brazil, Costa Rica
* Questocrypta Raven, 1994 — New Caledonia
* Rhianodes Raven, 1985 — Malaysia, Singapore, Philippines
* Sason Simon, 1887 — Asia, Oceania, Seychelles
* Sasonichus Pocock, 1900 — India
* Seqocrypta Raven, 1994 — Australia
* Sipalolasma Simon, 1892 — Asia, Africa
* Strophaeus Ausserer, 1875 — Brazil, Peru, Panama
* Synothele Simon, 1908 — Australia
* Thalerommata Ausserer, 1875 — Colombia, Mexico
* Tigidia Simon, 1892 — Madagascar, Mauritius
* Trittame L. Koch, 1874 — Australia
* Troglothele Fage, 1929 — Cuba
* Tungari Raven, 1994 — Australia
* Zophorame Raven, 1990 — Australia
* Zophoryctes Simon, 1902 — Madagascar

## References

1. ↑ 1.0 1.1 1.2 "Family: Barychelidae Simon, 1889". Natural History Museum Bern. http://www.wsc.nmbe.ch/family/13.
2. ↑ Murphy, Frances; Murphy, John (2000). An Introduction to the Spiders of South East Asia. Kuala Lumpur: Malaysian Nature Society.
3. ↑ Bristowe, W.S. (September 1930). "XXXIV.— Notes on the biology of spiders .—II. Aquatic spiders" (in en). Annals and Magazine of Natural History 6 (33): 343–347. doi:10.1080/00222933008673222. ISSN 0374-5481.
4. ↑ Levi, Herbert W.; Levi, Lorna R.. Spiders and Their Kin. p. 20.
5. ↑ Raven, R.J. (1994). "Mygalomorph spiders of the Barychelidae in Australia and the Western Pacific". Memoirs of the Queensland Museum 35 (2): 291–706.

* Raven, R.J. (1986): A revision of the spider genus Sason Simon (Sasoninae, Barychelidae, Mygalomorphae) and its historical biogeography. Journal of Arachnology 14: 47-70. PDF
* Valerio, CE. (1986): Mygalomorph spiders in the Barychelidae (Araneae) from Costa Rica. J. Arachnol. 14: 93-99. PDF (Psalistops venadensis, Trichopelma laselva)
* Schwendinger, P.J. (2003): Two new species of the arboreal trapdoor spider genus Sason (Araneae, Barychelidae) from Southeast Asia. Raffles Bulletin of Zoology 51(2): 197-207. PDF (S. sundaicum, S. andamanicum)

## External links

* Brush-footed trap-door spiders

Wikidata ☰ Q8617 entry

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