Overview

Brief Summary

The spider family Cybaeidae includes 178 spp (Platnick 2013), the great majority of them in the genus Cybaeus, with around 80 species found in North America north of Mexico. The family has a mainly Holarctic distribution, with most species occurring in Japan and western North America.  In North America, one species of Cybaeota and three of Cybaeus are found in forested uplands of the east; all the other North American cybaeids are found west of the continental divide from far out on the Aleutian Islands (two species) to the Mexico/United States border. Cybaeus is a Holarctic (=Palearctic + Nearctic) genus, but the other genera found in North America are apparently  Nearctic endemics. (Bennett 2005).

Cybaeids typically inhabit the leaf litter on the forest floor and are among the most commonly encountered spiders in the forests of western North America, but they can be found in habitats ranging from coastal and riparian beach litter to alpine meadows. One species is known to be found in moss on deciduous tree trunks in coniferous forests in western North America, a number of species live underground, and the European Argyroneta aquatica is the world's only known entirely aquatic spider. Most cybaeids build small webs that are best described as a type of funnelweb and which probably function as retreats. The webbing is usually hidden under a rock or log with just a small amount, or even just a few signal lines, extending into the open. (Bennett 2005 and references therein; Bradley 2013)

Like most spiders, cybaeids have eight eyes. Cybaeids typically have conical spinnerets (with the anterior pair being somewhat longer than the posterior pair), spiny legs, and a hairless and shiny carapace (Bradley 2013).

Bennett (2005 and references therein) reviewed the limited published and unpublished information available about the natural history of cybaeids. Bennett (2005) also reviewed the complex taxonomic history of this family, the delineation of which remains difficult. Copley et al. (2009) reviewed the systematics of the genus Cybaeus.

  • Bennett, R.G. 2005. Cybaeidae. Pp. 85-90 in D. Ubick, P. Paquin, P.E. Cushing, and V. Roth (eds.) Spiders of North America: an Identification Manual. American Arachnological Society.
  • Bradley, R.A. 2013. Common Spiders of North America. University of California Press, Berkeley.
  • Copley, C.R., R. Bennett, and S.J. Perlman. 2009. Systematics of Nearctic Cybaeus (Araneae : Cybaeidae). Invertebrate Systematics 23(4): 367-401.
  • Platnick, N. I. 2013. The world spider catalog, version 14.0. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html
Creative Commons Attribution 3.0 (CC BY 3.0)

© Leo Shapiro

Supplier: Leo Shapiro

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:216Public Records:22
Specimens with Sequences:130Public Species:17
Specimens with Barcodes:121Public BINs:18
Species:40         
Species With Barcodes:29         
          
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Cybaeidae

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Wikipedia

Cybaeidae

Cybaeidae is a family of spiders comprising twelve genera.

Genera

See also

Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Average rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!