Plectreuridae

Plectreurid spiders
Temporal range: Middle Jurassic - Holocene, 164–0 Ma
Male plectreurid
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Suborder: Opisthothelae
Infraorder: Araneomorphae
Family: Plectreuridae
Simon, 1893
Genera

†Eoplectreurys
Kibramoa
Plectreurys

Diversity
4 genera, 33 species

Plectreuridae, sometimes called plectreurid spiders, are a small spider family confined to the North American deserts and the island of Cuba. Only two living genera are known - the nominate genus Plectreurys and Kibramoa. In the past, the family was more widespread, with the Jurassic genus Eoplectreurys known from China, the Eocene Palaeoplectreurys baltica from Baltic amber and the Miocene Plectreurys pittfieldi from Dominican amber.[1]

These ecribellate (lacking a plate-like woolly silk-producing structure anterior to the spinnerets on the venter), haplogyne spiders build haphazard webs under rocks and dead cacti. Relatively little is known of their biology. Unlike the sicariids, scytodids and diguetids, to which they are most closely related, they have eight eyes. In appearance females of Plectreurys resemble those of the larger species of the cribellate Filistatidae. They differ in their eye arrangement and in having the first femora (third leg segment from the body) bowed.

Species

†Eoplectreurys Selden & Huang, 2010

Kibramoa Chamberlin, 1924

Plectreurys Simon, 1893

Tentatively placed in Plectreuridae:

See also

References

  1. ↑ Selden, P.A.; Huang, D. (2010). "The oldest haplogyne spider (Araneae: Plectreuridae), from the Middle Jurassic of China". Naturwissenschaften 97 (5): 449–59. doi:10.1007/s00114-010-0649-z. PMID 20140419.
  2. ↑ T. L. Carpenter, B. J. Bernacky, and E. E. Stabell: "Human Envenomization by Plectreurys tristis Simon (Araneae: Plectreuridae): A Case Report" in Journal of Medical Entomology, Vol. 28 (1991), No. 3, pp. 477-478.

External links

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