Arboriticus spinosissimus (Mello-Leitão, 1923)

♀ Female described ♂ Male described

Type Locality and Records

Type locality

Bibliography

Mello-Leitão, C. F. de (1923). Theraphosideas do Brasil. Rev. Mus. Paulista 13: 1-438 [p. 306, f. 51-55, 167].

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.

Distribution

Brazil

Type Locality: BRAZIL, Rio de Janeiro, Pinheiro (now Pinheiral), 377 m a.s.l.

Specimen Records (1)

MZUSP 130 ♀ Holotype Brazil

Pinheiro (now Pinheiral), 377 m a.s.l., Rio de Janeiro

1923

The type of Arboriticus spinosissimus. Long labelled as the holotype of Pamphobeteus holophaeus, but Mello-Leitao gave that holotype the number MZUSP 129-A, and this specimen bears every character he described for E. spinosissimus. Borges et al. (2025) conclude it is the presumed-lost type of spinosissimus. Collection date unrecorded; 1923 is the year of description.