Stegodyphus bicolor

Bicolor Stegodyphus Velvet Spider
female
female
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Eresidae
Genus: Stegodyphus
Species:
S. bicolor
Binomial name
Stegodyphus bicolor
Synonyms
  • Eresus bicolor O. Pickard-Cambridge, 1869
  • Stegodyphus canus Purcell, 1904
  • Stegodyphus filimaculatus Lawrence, 1927

Stegodyphus bicolor is a species of spider in the family Eresidae.[1] It is found in Namibia and South Africa, where it is commonly known as the bicolor Stegodyphus velvet spider.[2]

Distribution

Stegodyphus bicolor occurs in two countries: Namibia and South Africa.[1] In South Africa, the species is recorded from the Northern Cape, where it is protected in Augrabies National Park.[2]

Habitat and ecology

The species inhabits Desert and Succulent Karoo biomes at altitudes ranging from 33 to 720 m above sea level.[2]

Stegodyphus bicolor constructs retreat-webs and lives solitarily in nests made with yellow-orange silk.[2]

Description

Conservation

Stegodyphus bicolor is listed as Least Concern by the South African National Biodiversity Institute due to its wide global range. It is protected in Augrabies National Park.[2]

Taxonomy

The species was originally described by Octavius Pickard-Cambridge in 1869 as Eresus bicolor from Namibia.[3] It was revised by Kraus & Kraus in 1989.[4]

References

  1. ^ a b c "Stegodyphus bicolor (O. Pickard-Cambridge, 1869)". World Spider Catalog. Retrieved 22 September 2025.
  2. ^ a b c d e Dippenaar-Schoeman, A.S.; Haddad, C.R.; Foord, S.H.; Lotz, L.N. (2022). The Eresidae of South Africa. Version 2. South African National Survey of Arachnida Photo Identification Guide. p. 39. doi:10.5281/zenodo.6331366. Retrieved 22 September 2025. This article incorporates text available under the CC BY 4.0 license.
  3. ^ Pickard-Cambridge, O. (1869). "Descriptions and sketches of some new species of Araneida, with characters of a new genus". Annals and Magazine of Natural History. 3 (13): 52–74. doi:10.1080/00222936908695878.
  4. ^ Kraus, O.; Kraus, M. (1989). "The genus Stegodyphus (Arachnida, Araneae). Sibling species, species groups, and parallel origin of social living". Verhandlungen des Naturwissenschaftlichen Vereins in Hamburg. 30: 151–254.