Scaffold web spider

Scaffold web spiders
male Nesticus sp.
Scientific classification
Kingdom:Animalia
Phylum:Arthropoda
Subphylum:Chelicerata
Class:Arachnida
Order:Araneae
Infraorder:Araneomorphae
Family:Nesticidae
Simon, 1894[1]
Genera

See text.

Diversity[2]
15 genera, 276 species

The scaffold web spiders of the family Nesticidae, are closely allied with the Theridiidae, or tangle web spiders. Like the Theridiidae, these spiders have a comb of serrated bristles on the hind tarsi that are used to pull silk bands from the spinnerets. It contains 15 genera and about 280 species, many of which are associated with caves or overhangs. The genus Nesticus is the type for the family and is found throughout the world. The related Eidmannella has speciated considerably in Texas caves and includes some extremely localized species that are considered threatened. One species, Eidmannella pallida, is found in caves and under overhangs, but also in agricultural fields and other habitats away from such restricted areas. The genus Carpathonesticus is found in central Eurasia.

Genera

As of February 2017, the World Spider Catalog accepted the following extant genera:[1]

The following extinct genera have been placed in the Nesticidae:[3]

  • †Balticonesticus Wunderlich, 1986 – Palaeogene, Baltic amber
  • †Eopopino Petrunkevitch, 1942 – Palaeogene, Baltic and Bitterfeld amber
  • †Heteronesticus Wunderlich, 1986 – Palaeogene, Baltic amber
  • †Hispanonesticus Wunderlich, 1986 – Neogene, Dominican amber

See also

References

  1. 1 2 "Family: Nesticidae Simon, 1894 (genus list)". World Spider Catalog. Natural History Museum Bern. Retrieved 2017-02-01.
  2. ↑ "Family: Nesticidae Simon, 1894 (family details)", World Spider Catalog, Natural History Museum Bern, retrieved 2017-02-02
  3. ↑ Dunlop, J.A.; Penney, D.; Jekel, D. (2015). "A summary list of fossil spiders and their relatives" (PDF). World Spider Catalog. Natural History Museum Bern. Retrieved 2015-11-11.
  • Hedin, M. & Dellinger, B. (2005). Descriptions of a new species and previously unknown males of Nesticus (Araneae: Nesticidae) from caves in Eastern North America, with comments on species rarity. Zootaxa 904: 1-19 PDF
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