Article · Wikipedia archive · Last revised Jul 22, 2026

Arboriticus

Arboriticus is a genus of spiders in the family Theraphosidae.

Last revised
Jul 22, 2026
Read time
≈ 1 min
Length
258 w
Citations
7
Source
Arboriticus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Theraphosidae
Genus: Arboriticus
Borges & Bertani, 20251
Type species
A. celsoi
Borges & Bertani, 2025
Species

7, see text

Arboriticus is a genus of spiders in the family Theraphosidae.2

Distribution and Habitat

Arboriticus is endemic to Brazil, with all seven described species occurring exclusively within this country.2

The genus is noted for having an arboreal habitat,2 which is unusual among Theraphosines due to their large size, many species of the genus were discovered in deforested tree trunks and cavities. Their arboreal habitat and close proximity to human deforestation, along with the relativity few collected specimens has raised concerns on the conservation status of the genus as a whole.3

Taxonomy

The genus includes two species formerly included in Eupalaestrus.2

Species

As of October 2025, this genus includes seven species:2

  • Arboriticus celsoi Borges & Bertani, 2025 (type species)
  • Arboriticus giganteus Borges & Bertani, 2025
  • Arboriticus maculatus Borges, Abegg & Bertani, 2025
  • Arboriticus minor Borges & Bertani, 2025
  • Arboriticus petropolis Borges & Bertani, 2025
  • Arboriticus spinosissimus (Mello-Leitão, 1923)
  • Arboriticus tarsicrassus (Bücherl, 1947)
References

References

  1. 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. PMID 41119289.
  2. "Gen. Arboriticus Borges & Bertani, 2025". World Spider Catalog. doi:10.24436/2. Retrieved 2025-10-28.
  3. Liebhaber, Lauren (August 19, 2025). "'Giant' tree-dwelling tarantula discovered in Brazil rainforest is a new species". Retrieved April 3, 2026.
External links