Dipluridae
Template:Short description Template:Automatic taxobox
The family Dipluridae, known as curtain-web spiders (or confusingly as funnel-web tarantulas, a name shared with other distantly related families<ref name=Rave85 />) are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion. A number of genera, including that of the Sydney funnel-web spider (Atrax), used to be classified in this family but have now been moved to Atracidae.
Description
Dipluridae lack rastella (stout conical spines on their chelicerae). Their carapace is characterized by the head region not being higher than the thoracic region. Their posterior median spinnerets (silk-extruding organs) are much shorter than their posterior lateral spinnerets, which have three segments, and are elongated (almost as long as their opisthosoma).<ref name=murphy2000 />
Most of the species are medium to small-sized spiders; some may measure about 15 mm.<ref name=murphy2000 />
The cave species Masteria caeca is eyeless.
Biology
Members of this family often build rather messy funnel-webs. Some build silk-lined burrows instead of webs (Diplura, Trechona, Harpathele, some Linothele sp.). They generally build their retreats in crevices in earthen banks, the bark of trees, under logs or in leaf litter.<ref name=murphy2000 />
Distribution
As circumscribed Template:As of, the family is mostly found in South America and the Caribbean, with some Masteria species found in Australia and Oceania.<ref name=wsc />
Taxonomy
The family Dipluridae was first erected in 1889 by Eugène Simon.<ref name=wsc /> A major study of the Mygalomorphae by Robert Raven in 1985 characterized the Dipluridae on morphological grounds, in particular the possession of long and widely spaced spinnerets. Raven divided the family into four subfamilies: Diplurinae, Euagrinae, Ischnothelinae and Masteriinae.<ref name=Rave85 /> Molecular phylogenetic studies from 1993 onwards showed that with Raven's circumscription, Dipluridae was not monophyletic, with the subfamilies Ischnothelinae and Euagrinae only very distantly related to Diplurinae. Accordingly, in 2020, Opatova et al. restricted Dipluridae to Diplurinae and Masteriinae, and elevated the subfamilies Ischnothelinae and Euagrinae to the families Ischnothelidae and Euagridae. The genus Microhexura was removed from its former placement in Euagrinae and placed in a separate family, Microhexuridae.<ref name=OpatHamiEdinMont20 />
The family Dipluridae is most closely related to the Cyrtaucheniidae, and is placed in the "Nemesioidina" clade of 'advanced' mygalomorph families:<ref name=OpatHamiEdinMont20 /> Template:Clade
Genera
Template:As of, this family includes eight genera:<ref name="wsc" /> Template:Div col
- Diplura C. L. Koch, 1850 – South America
- Harmonicon F. O. Pickard-Cambridge, 1896 – Brazil, French Guiana
- Harpathele Wermelinger-Moreira, Pedroso, Castanheira & Baptista, 2024 – Brazil
- Linothele Karsch, 1879 – Bahamas, Panama, South America
- Masteria L. Koch, 1873 – Philippines, North America, Australia, Fiji, New Caledonia, Papua New Guinea, South America
- Siremata Passanha & Brescovit, 2018 – Brazil
- Striamea Raven, 1981 – Colombia
- Trechona C. L. Koch, 1850 – Brazil
Transferred to other families
The following genera are now placed in other families (elevated from subfamilies):<ref name=WSC_f132 /><ref name=WSC_gl133 />
- Allothele Tucker, 1920 → Euagridae
- Andethele Coyle, 1995 → Ischnothelidae
- Australothele Raven, 1984 → Euagridae
- Caledothele Raven, 1991 → Euagridae
- Carrai Raven, 1984 → Euagridae
- Cethegus Thorell, 1881 → Euagridae
- Chilehexops Coyle, 1986 → Euagridae
- Euagrus Ausserer, 1875 → Euagridae
- Indothele Coyle, 1995 → Ischnothelidae
- Ischnothele Ausserer, 1875 → Ischnothelidae
- Lathrothele Benoit, 1965 → Ischnothelidae
- Leptothele Raven & Schwendinger, 1995 → Euagridae
- Microhexura Crosby & Bishop, 1925 → Microhexuridae
- Namirea Raven, 1984 → Euagridae
- Phyxioschema Simon, 1889 → Euagridae
- Stenygrocercus Simon, 1892 → Euagridae
- Thelechoris Karsch, 1881 → Ischnothelidae
- Troglodiplura Main, 1969 → Anamidae
- Vilchura Ríos-Tamayo & Goloboff, 2017 → Euagridae
Extinct species
Extinct genera and species that have been placed in this family include:<ref name=DunlPennJeke15 />
- †Clostes Menge, 1869 — Eocene Baltic amber
- †Clostes priscus (Menge, 1869)
- †Cretadiplura Selden, 2005 — Early Cretaceous (Aptian) Crato Formation, Brazil<ref name=AlcheringaEdwa />
- †Cretadiplura ceara Selden, 2005
- †Dinodiplura Selden, 2005 — Early Cretaceous (Aptian) Crato Formation, Brazil<ref name=AlcheringaEdwa />
- †Dinodiplura ambulacra Selden, 2005
- †Seldischnoplura Raven, Jell & Knezour, 2015 — Early Cretaceous (Aptian) Crato Formation, Brazil<ref name=AlcheringaEdwa />
- †Seldischnoplura seldeni Raven, Jell & Knezour, 2015
- †Edwa Raven, Jell & Knezour, 2015 — Late Triassic (Norian) Blackstone Formation, Australia<ref name=AlcheringaEdwa />
- †Edwa maryae Raven, Jell & Knezour, 2015
- † Phyxioschemoides Wunderlich, 2015 — Cretaceous Burmese amber<ref name=BzA921408 />
- † Phyxioschemoides collembola Wunderlich, 2015
- † Cethegoides Wunderlich, 2017 — Cretaceous Burmese amber<ref name=BzA10Araneae />
- † Cethegoides patricki Wunderlich, 2017
See also
References
- Murphy, Frances & Murphy, John (2000): An Introduction to the Spiders of South East Asia. Malaysian Nature Society, Kuala Lumpur.
Further reading
- Chickering, A. M. (1964): Two new species of the genus Accola (Araneae, Dipluridae). Psyche 71: 174–180. PDF
- Coyle, F. A. (1986): Chilehexops, a new funnelweb mygalomorph spider genus from Chile (Araneae, Dipluridae). Am. Mus. Novit. 2860: 1–10. PDF
- Goloboff, Pablo A. (1994): Linothele cavicola, a new Diplurinae spider (Araneae, Dipluridae) from the caves in Ecuador. J. Arachnol. 22: 70–72. PDF Template:Webarchive
- Selden, P.A., da Costa Casado, F. & Vianna Mesquita, M. (2005): Mygalomorph spiders (Araneae: Dipluridae) from the Lower Cretaceous Crato Lagerstätte, Araripe Basin, North-east Brazil. Palaeontology 49(4): 817–826. {{#invoke:CS1 identifiers|main|_template=doi}}
External links
Template:Araneae Template:Taxonbar Template:Authority control