Dionycha

Dionycha

Dionycha

Clade of spiders

For the plant genus, see Dionycha (plant).

The Dionycha are a clade of spiders (Araneomorphae:Entelegynae), characterized by the possession of two tarsal claws with tufts of hairs (setae) beside them, which produce strong adhesion, enabling some species to climb glass.[2] The circumscription of the group has varied widely; a 2021 analysis resulted in about 20 families, including Salticidae (jumping spiders), Gnaphosidae (ground spiders), and Clubionidae.[3]

Quick Facts Scientific classification, Diversity ...

The Dionycha are considered to be a subgroup of the larger RTA clade.[2] Most species hunt their prey instead of building webs.

There are no cribellate members in the Dionycha.[4]

Today it is thought that the reduction of the third claw present in ancestral spiders evolved several times independently,[1] so this alone is not a criterion that defines the clade.

Families

In 2021, a group of several spider taxonomists published a major study of the phylogeny of Dionycha, using genetic and phenotypic data. It included the families listed below:[3]

Dionycha

Footnotes

  1. [1]
    Ramírez (2014).
  2. [2]
    Garrison, Nicole L.; Rodriguez, Juanita; Agnarsson, Ingi; Coddington, Jonathan A.; Griswold, Charles E.; Hamilton, Christopher A.; Hedin, Marshal; Kocot, Kevin M.; Ledford, Joel M. & Bond, Jason E. (2015). "Spider phylogenomics: untangling the Spider Tree of Life". PeerJ. 3: e1852. doi:10.7717/peerj.1719. PMC 4768681. PMID 26925338.
  3. [3]
    Azevedo, Guilherme H. F.; Bougie, Tierney; Carboni, Martin; Hedin, Marshal; Ramírez, Martín J. (January 2022). "Combining genomic, phenotypic and Sanger sequencing data to elucidate the phylogeny of the two-clawed spiders (Dionycha)". Molecular Phylogenetics and Evolution. 166: 107327. doi:10.1016/j.ympev.2021.107327. hdl:11336/148790. PMID 34666169. S2CID 239035463.
  4. [4]
    Griswold et al. 1999

References
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