World Spider Catalog

Genus: Arboriticus Borges & Bertani, 2025 | Family: Theraphosidae Thorell, 1869

Arboriticus spinosissimus (Mello-Leitão, 1923)

SPECIES | ACCEPTED

LSID: urn:lsid:nmbe.ch:spidersp:037449

Permalink: https://wsc.nmbe.ch/lsid/urn:lsid:nmbe.ch:spidersp:037449

Described:

Distribution: Brazil

External Resources*: GBIF

Type Repository Provide information

Holotype: Museu Nacional, Universidade Federal do Rio de Janeiro (MNRJ), Brazil (database excerpt, August 2019) f (01399, probably destroyed by the fire 2018) -

Taxonomic References

Eupalaestrus spinosissimus Mello-Leitão, 1923a: 221, f. 104-105 (Df) Original description

Eupalaestrus spinosissimus Pérez-Miles, 1992: 34 (holotype presumably lost, uncertain species = nomen dubium)

Eupalaestrus spinosissimus Bertani, 2001: 283 (removed from nomen dubium, S of Eupalaestrus tarsicrassus [revalidated by Borges et al., 2025: 531, sub Arboriticus] and Pamphobeteus holophaeus [rejected by Borges et al., 2025: 531, see Vitalius dubius], f f. 19, 56-57 see A. tarsicrassus)

Eupalaestrus spinosissimus Schmidt, 2007c: 100, f. 3-4 (f)

Arboriticus spinosissimus Borges et al., 2025: 529, f. 15-18 (f, T from Eupalaestrus)

References

Bertani, R. (2001). Revision, cladistic analysis, and zoogeography of Vitalius, Nhandu, and Proshapalopus; with notes on other theraphosine genera (Araneae, Theraphosidae). Arquivos de Zoologia 36(3): 265-356. doi: 10.11606/issn.2176-7793.v36i3p265-356 -- Show included taxa

Borges, L. M., Abegg, A. D., Paladini, A. & Bertani, R. (2025). A new genus and five new species of arboreal tarantulas (Araneae: Theraphosidae) from Brazil. Zootaxa 5679(4): 521-551. doi: 10.11646/zootaxa.5679.4.4 -- Show included taxa

Mello-Leitão, C. F. de (1923a). Theraphosideas do Brasil. Revista do Museu Paulista 13: 1-438. -- Show included taxa

Pérez-Miles, F. (1992). Revisión del género Eupalaestrus Pocock 1901 (Araneae, Theraphosidae). Revista Brasileira de Biologia 52: 27-35. -- Show included taxa

Schmidt, G. (2007c). Zur Kenntnis der Theraphosinae-Weibchen mit verdickter Tibia IV. Spixiana 30: 99-101. -- 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	Comment
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	New taxonomic reference entry	Borges et al., 2025
2025-08-15	Species transferred to new genus	Borges et al., 2025	Species transferred from Eupalaestrus to Arboriticus
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Arboriticus tarsicrassus (Bücherl, 1947)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Vitalius dubius (Mello-Leitão, 1923)
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Eupalaestrus tarsicrassus Bücherl, 1947
2025-08-15	Taxonomic reference assigned to new taxon		Taxonomic reference entry assigned to Vitalius dubius (Mello-Leitão, 1923)