Cyclosa conica

Cyclosa conica is a small spider with no common name. It is an orb weaver, and it is easily recognized by the way it strings together the dead bodies of insects and other debris and hangs it near the center of its web. It hides on this string of debris, and its natural coloration makes it extremely difficult to see until it moves. One of its defenses against predators is to blend in with this debris and to feign death when disturbed. These spiders are small; the females range from 5.3 mm to 7.5 mm, and the males range from 3.6 mm to 4 mm.

Cyclosa conica
Female spiderling
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Araneidae
Genus: Cyclosa
Species:
C. conica
Binomial name
Cyclosa conica
Pallas, 1772
Synonyms
  • Aranea conica
  • Aranea triquetra
  • Epeira conica
  • Singa conica
  • Epeira canadensis
  • Cyrtophora conica
  • Cyclosa strandjae

The webs of these spiders are characterized by a vertical stripe running down the center. This stripe, or stabilimentum, is composed of dead prey and other debris and is used as a hiding place for the spider. The material in the stabilimentum may also serve as a decoy to mislead predators into attacking the debris, giving the spider time to escape.

Central portion of web hiding the spider

Subspecies

  • Cyclosa conica albifoliata Strand, 1907 (France)
  • Cyclosa conica defoliata Strand, 1907 (Central Europe)
  • Cyclosa conica dimidiata Simon, 1929 (France)
  • Cyclosa conica leucomelas Strand, 1907 (Central Europe)
  • Cyclosa conica pyrenaica Strand, 1907 (France)
  • Cyclosa conica zamezai Franganillo, 1909 (Portugal)

References

    • Kaston, B.J. (1953). How to Know the Spiders. Pictured key nature series (1st ed.). Dubuque, IA: W.C. Brown Co. OCLC 681432632.


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