Ariamnes cylindrogaster

Ariamnes cylindrogaster is a spider belonging to the family Theridiidae.[1] It is found from Laos to Taiwan.

Ariamnes cylindrogaster
male A. cylindrogaster from Japan
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Arachnida
Order:
Araneae
Family:
Theridiidae
Genus:
Ariamnes
Species:
A. cylindrogaster
Binomial name
Ariamnes cylindrogaster
(Simon, 1889)
Synonyms

Argyrodes cylindrogaster

female A. cylindrogaster with egg sac

Description and habit

Like many species in its genus, A. cylindrogaster has an extremely elongated abdomen, resembling a twig or pine needle. Female body length is about 30 mm. Color ranges from green to brown. Males are slightly smaller (around 25 mm), but otherwise look similar. The abdomen can be bent upwards.

A. cylindrogaster hunts other spiders, using a simplistic web, which it constructs between trees. In Japan, almost 96% of its prey were found to be spiders in 24 species from 11 families.

The species creates an elongated egg sac.

Distribution

A. cylindrogaster is found in Laos, China (including Hong Kong), Korea, Taiwan and Japan. It typically lives in forests.

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References
  1. "Theridiidae". World Spider Catalogue.


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