Madagascar: an unexpected hotspot of social Anelosimus spider diversity (Araneae: Theridiidae)

  title={Madagascar: an unexpected hotspot of social Anelosimus spider diversity (Araneae: Theridiidae)},
  author={Ingi Agnarsson and Matja{\vz} Kuntner},
  journal={Systematic Entomology},
Abstract.  The spider genus Anelosimus Simon, 1891 (Theridiidae) currently contains over forty described species, found worldwide in tropical to warm temperate areas. American Anelosimus are all social, a rare trait among spiders, but social behaviour has not been reported for Anelosimus species elsewhere. Old World Anelosimus are poorly known, both behaviourally and taxonomically, and no Anelosimus species have yet been described from sub‐Saharan Africa or Madagascar. Based on a preliminary… 

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