Arboriticus, Borges & Abegg & Paladini & Bertani, 2025

Borges, Leandro Malta, Abegg, Arthur Diesel, Paladini, Andressa & Bertani, Rogério, 2025, A new genus and five new species of arboreal tarantulas (Araneae: Theraphosidae) from Brazil, Zootaxa 5679 (4), pp. 521-551 : 525

Key to species of Arboriticus gen. nov.

Males (males of Arboriticus spinosissimus gen. nov. comb. nov. are unknown)

1 Male palpal bulb with well-developed keels, SA present (Figs 48–50).................... A. giganteus gen. nov. sp. nov .

- Male palpal bulb with poorly developed keels, SA absent (Figs 4–6)............................................ 2

2 Metatarsi I touching RP apex when flexed................................................................. 3

- Metatarsi I touching RP laterally when flexed.............................................................. 4

3 Male palpal bulb keels PS, PI, A and R slightly reduced, conspicuous (Figs 63–65), sternum rounded (Fig. 62)...................................................................................... A. maculatus gen. nov. sp. nov .

- Male palpal bulb keels PS, PI, and A very reduced, inconspicuous, R absent (Figs 4–6), sternum longer than wide (Fig. 3)................................................................................. A. celsoi gen. nov. sp. nov.

4 Tibial spur PP not thickened, RP longer than PP (Figs 35–37).................................................. 5

- Tibial spur PP thickened, RP almost the same length as PP (Figs 43–45).................... A. minor gen. nov. sp. nov.

5 Tegulum not elongated, embolus narrows abruptly from the tegulum (Figs 21–23)..... A. tarsicrassus gen. nov. comb. nov.

- Tegulum elongated, embolus tapers from the tegulum (Figs 32–34).................... A. petropolis gen. nov. sp. nov.