World Spider Catalog

Genus: Caerostris Thorell, 1868 | Family: Araneidae Clerck, 1757

Caerostris extrusa Butler, 1882

SPECIES | ACCEPTED

LSID: urn:lsid:nmbe.ch:spidersp:015477

Permalink: https://wsc.nmbe.ch/lsid/urn:lsid:nmbe.ch:spidersp:015477

Described:

Distribution: Madagascar

External Resources*: GBIF

Type Repository Provide information

Holotype: British Museum of Natural History (BMNH)/Natural History Museum (NHMUK), London, UK f (1882.26) - (Gregorič et al., 2025a)

Taxonomic References

Caerostris extrusa Butler, 1882: 100, pl. 6, f. 3 (Df) Original description

Caerostris extrusa Grasshoff, 1984: 752, f. 28-30 (f, S of Caerostris bankana, revalidated by Gregorič et al., 2025a: 6)

Caerostris extrusa Gregorič et al., 2025a: 8, f. 1D, 4A-M, 6A-C (Dm, f)

References

Butler, A. G. (1882). On some new species of the genus Caerostris from Madagascar. Annals and Magazine of Natural History (5) 10(56): 100-106, pl. 6. doi: 10.1080/00222938209459680 -- Show included taxa

Grasshoff, M. (1984). Die Radnetzspinnen-Gattung Caerostris (Arachnida: Araneae). Revue Zoologique Africaine 98(4): 725-765. -- Show included taxa

Gregorič, M., Yu, K. P., Rojas Velez, W. & Garb, J. E. (2025a). Caerostris (Araneidae: Araneae) cryptic diversity highlights the need for taxonomic expertise in the genomic era. European Journal of Taxonomy 989: 1-23. doi: 10.5852/ejt.2025.989.2877 -- Show included taxa

External Resource References

* Disclaimer
As External Resources, the World Spider Catalog links here to species pages of other databases. They may contain further information for the given species. The databases, listed as External Resources, however, are not managed by World Spider Catalog and the information given there is not necessarily in agreement with the World Spider Catalog. All responsibility for such data is with the external database.

GBIF.org (2026). GBIF Home Page (via GBIF API). Available from: https://www.gbif.org [8 January 2026]

Edit History

Date	Type	Reference	Old value	Comment
2025-04-25	Taxonomic reference assigned to new taxon			Taxonomic reference entry assigned to Caerostris bankana Strand, 1915
2025-04-25	New taxonomic reference entry	Gregorič et al., 2025a
2025-04-25	First description of male	Gregorič et al., 2025a	Old value