| 词条 | Cyclosa |
| 释义 |
| image = Cyclosa octotuberculata.jpg | image_caption = Camouflaged C. octotuberculata | image2 = Web debris spider (Cyclosa insulana).jpg | image2_caption = Web debris spider on web C. insulana Sabah, Borneo | taxon = Cyclosa | authority = Menge, 1866 | diversity_link = List of Araneidae species: B-F#Cyclosa | diversity = 165 species | subdivision_ranks = Species | subdivision =Cyclosa argenteoalba Cyclosa conica Cyclosa monteverde Cyclosa octotuberculata many more }} Cyclosa is a spider genus in the family Araneidae. Widely distributed worldwide, spiders of the genus Cyclosa build relatively small orb webs with a web decoration. The web decoration in Cyclosa spiders is often linear and includes prey remains and other debris, which probably serve to camouflage the spider. While most orb-web spiders face downwards in their web when waiting for prey, some Cyclosa species (e.g. C. ginnaga and C. argenteoalba) face upwards[1] SpeciesCyclosa tremulaOne small species from Guyana described under the nomen dubium C. tremula has a black and white pattern and rests in the center of an orb web with greyish "imitation spiders" it has created from prey remains. If the spider is disturbed, it vibrates its body, so that the black and white patches blur into grey, thus resembling the false spiders.[2] Cyclosa argenteoalbaCyclosa argenteoalba builds two types of web, a traditional sticky spider web, and a resting web that consists of just a few strands. When infected with a larva of the wasp Reclinervellus nielseni, the spider switches on the behavior to build a resting web.[3] The larva then eats the spider and uses the web to complete metamorphosis.[4]References1. ^{{cite journal |last1=Nakata |first1=Kensuke |last2=Zschokke |first2=Samuel |year=2010 |title=Upside-down spiders build upside-down orb webs: web asymmetry, spider orientation and running speed in Cyclosa |journal=Proceedings of the Royal Society B|publisher=Royal Society |volume=277 |issue=1696 |pages=3019–3025 |url=http://rspb.royalsocietypublishing.org/content/277/1696/3019.full.pdf+html |doi=10.1098/rspb.2010.0729 |pmid=20462900 |pmc=2982030}} {{Commons|Cyclosa}}{{Taxonbar|from=Q1303937}}{{Araneidae-stub}}2. ^{{cite journal | last1 = Oxford | first1 = G.S. | last2 = Gillespie | first2 = R.G. | year = 1998 | title = Evolution and Ecology of Spider Coloration | url = | journal = Annual Review of Entomology | volume = 43 | issue = | pages = 619–643 | doi = 10.1146/annurev.ento.43.1.619 | pmid = 15012400 }} 3. ^{{Cite journal|last=Takasuka|first=Keizo|last2=Yasui|first2=Tomoki|last3=Ishigami|first3=Toru|last4=Nakata|first4=Kensuke|last5=Matsumoto|first5=Rikio|last6=Ikeda|first6=Kenichi|last7=Maeto|first7=Kaoru|date=2015-08-01|title=Host manipulation by an ichneumonid spider ectoparasitoid that takes advantage of preprogrammed web-building behaviour for its cocoon protection|url=http://jeb.biologists.org/content/218/15/2326|journal=Journal of Experimental Biology|language=en|volume=218|issue=15|pages=2326–2332|doi=10.1242/jeb.122739|issn=0022-0949|pmid=26246608}} 4. ^{{cite news |author=Arielle Duhaime-Ross |agency= |title=Zombie spider builds a stronger web for the parasitic wasp that's sucking its blood |url=https://www.theverge.com/2015/8/6/9103979/parasitic-wasp-spiders-zombie-stronger-web |quote= |newspaper=The Verge |date=August 6, 2015 |accessdate=2015-09-14 }} 3 : Araneidae|Araneomorphae genera|Cosmopolitan spiders |
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