Lampshade spider

{{Short description|Family of spiders}}

{{Automatic taxobox

| taxon = Hypochilidae

| name = Lampshade spiders

| image = Hypochilus pococki Kaldari 03.jpg

| image_upright = 0.9

| image_caption = Hypochilus pococki in web

| authority = Marx, 1888

| diversity_link = List of Hypochilidae species

| diversity = 2 genera, 33 species

| range_map = Distribution.hypochilidae.1.png

| range_map_upright = 1.1

| subdivision_ranks = Genera

| subdivision =

Ectatosticta

Hypochilus

}}

File:Hypochilus web (Marshal Hedin) rotated.jpg

Lampshade spiders, family Hypochilidae, are among the most primitive of araneomorph spiders. There are two genera and twelve species currently recognized. Like mygalomorphs, most hypochilids have two pairs of book lungs, but like araneomorphs they have intersecting fangs, with the exception of some species which have chelicerae in an angle that is neither orthognathous or labidognathous.[https://books.google.com/books?id=rc6Vz-cWickC&dq=%22exactly+intermediate+between+Mygalomorphae+and+Araneomorphae%22&pg=PA418 Spiders--webs, Behavior, and Evolution] These long-legged spiders build typical "lampshade" style webs under overhangs and in caves. In the United States the fauna is primarily associated with the Appalachian, Rocky and California Mountains. Ten of the known species are found in these ranges, all in the genus Hypochilus. The genus Ectatosticta is found in China.

In one analysis, the Hypochilidae are a sister clade to the Neocribellatae, which contains all other spider species in the Araneomorphae (Coddington & Levi, 1991, p. 576). A more recent study groups them with the Haplogynae.{{Cite journal |last1=Bond |first1=Jason E. |last2=Garrison |first2=Nicole L. |last3=Hamilton |first3=Chris A. |last4=Godwin |first4=Rebecca L. |last5=Hedin |first5=Marshal |last6=Agnarsson |first6=Ingi |year=2014 |title=Phylogenomics Resolves a Spider Backbone Phylogeny and Rejects a Prevailing Paradigm for Orb Web Evolution |journal=Current Biology |volume=24 |issue=15 |pages=1765–1771 |doi=10.1016/j.cub.2014.06.034 |name-list-style=amp |pmid=25042592|doi-access=free }} |p. 1766.

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Species

Ectatosticta Simon, 1892 – China

Hypochilus Marx, 1888 – US

See also

References

{{Reflist}}

  • {{cite journal | last1 = Coddington | first1 = J.A. | last2 = Levi | first2 = H.W. | year = 1991 | title = Systematics and Evolution of Spiders (Araneae) | journal = Annu. Rev. Ecol. Syst. | volume = 22 | pages = 565–592 | doi=10.1146/annurev.es.22.110191.003025}}
  • {{cite book |title=How to Know the Spiders |url=https://archive.org/details/howtoknowspiders0000kast |url-access=registration |edition=1st |first=B. J. |last=Kaston |author-link=B. J. Kaston |publisher=W.C. Brown Co. |location=Dubuque, IA |date=1953 |oclc=681432632 }}

Further reading

  • Forster, R.R., Platnick, N.I. and Gray, M.R. (1987). A review of the spider superfamilies Hypochiloidea and Austrochiloidea (Araneae, Araneomorphae). Bulletin of the AMNH 185(1):1-116 [http://digitallibrary.amnh.org/dspace/handle/2246/969 Abstract] - [http://digitallibrary.amnh.org/dspace/bitstream/2246/969/1/B185a01.pdf PDF (50Mb)]
  • {{cite journal | last1 = Shear | first1 = W.A. | year = 1969 | title = Observations on the predatory behavior of the spider Hypochilus gertschi Hoffman (Hypochilidae) | journal = Psyche: A Journal of Entomology | volume = 76 | issue = 4 | pages = 407–417 | doi = 10.1155/1969/59683 | doi-access = free }}