Stegodyphus sarasinorum

Indian cooperative spider
From Thazhambur, Tamil Nadu, India
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Eresidae
Genus: Stegodyphus
Species:
S. sarasinorum
Binomial name
Stegodyphus sarasinorum
Karsch, 1892

Stegodyphus sarasinorum, also known as the Indian cooperative spider, is a species of velvet spider of the family Eresidae. It is native to India, Sri Lanka, Nepal, and Myanmar. This spider is a social spider that exhibits communal predation and feeding, where individuals live in large cooperatively built colonies with a nest or retreat constructed of silk woven using leaves, twigs, and food carcasses, and a sheet web for prey capture.

Individual S. sarasinorum spiders that have attacked prey once are more likely to attack prey again, independent of their body size or hunger level. Stegodyphus is the only genus of the family Eresidae that is arboreal, not terrestrial.