Revalidation of the genus Sadala Simon, 1880 with the description of a new genus of Neotropical huntsman spiders (Araneae, Sparassidae) Author Rheims, Cristina A. 0000-0003-4418-0552 carheims@gmail.com Author Jäger, Peter 0000-0003-4418-0552 carheims@gmail.com text Zootaxa 2022 2022-05-13 5135 1 1 80 journal article 94101 10.11646/zootaxa.5135.1.1 b7383fd7-d4f4-492a-9e59-a2e3738157f9 1175-5326 6550195 0CC0D586-E099-4593-9032-EA1885F00F3B Sadala nanay spec. nov. Figs 35–37 , 41–42 , 89 Type material: Holotype : PERU : Iquitos : ♀ , San Juan Bautista , Zungarococha , Arboretum del UNAP ( -3.8298 , -73.3753 ) , 8–9 April 2013 , C.A. Rheims & R . P. Indicatti leg. ( MUSM ). Paratype : BRAZIL : Mato Grosso : 1♀ , Pontes e Lacerda / Vale do São Domingos , Usina Hidrelétrica de Guaporé [ ‑15.133 , ‑58.9667 ], October 1999 , Equipe Butantan leg. ( IBSP 41397 ) . Etymology. The specific name refers to the Nanay River that borders the type locality; noun in apposition. Diagnosis. Females of S. nanay spec. nov. resemble those of S. punicea ( Figs 48–50 ) by the epigyne with MS diamond-shaped posteriorly ( Fig. 35 ). They are distinguished from those of the latter species by the MS more than 1.5 times longer than wide with elliptical CO ( Fig. 35 ) and internal ducts loosely twisted, without a well-defined second turn ( Figs 36–37 ) (MS less than 1.5 times longer than wide with rounded CO and internal ducts tightly twisted in S. punicea ). Males are unknown. Description. Female ( holotype ): Total length 16.3. Prosoma: 7.2 long, 6.4 wide. Opisthosoma: 8.5 long, 4.9 wide. Eyes: diameters: 0.54, 0.41, 0.35, 0.42; interdistances: 0.45, 0.18, 0.70, 0.75, 0.40, 0.35. Legs: I: 28.2 (8.0, 3.4, 7.2, 7.6, 2.0); II: 29.9 (8.9, 3.4, 8.0, 7.6, 2.0); III: 22.2 (7.0, 2.7, 5.4, 5.4, 1.7); IV: 24.2 (7.6, 2.5, 6.0, 6.3, 1.8). Spination follows the generic pattern except patellae II–III: p1. Epigyne: EF as long as wide; MAB inconspicuous; TP wider than long or slightly longer than wide; LL touching posteriorly ( Figs 35 , 41 ). Vulva: FW antero-laterad; GP cylindrical, longer than wide, arising from duct close to SP; SP irregularly rounded; FD anteriad ( Figs 36–37 , 42 ). Male: Unknown. Variation. Female (n = 2): total length 1.61–16.3; prosoma length 7.2–7.4; femur I length 8.0–8.8. Distribution. Known from Iquitos in northeastern Peru and southwestern Mato Grosso , in Brazil ( Fig. 89 ).