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 Meri tambor spec. nov. Figs 253–256 , 260–262 , 318 Type material. Holotype : BRAZIL : Amazonas : ♂ , Parque Nacional do Jaú ( ‑1.8671 , ‑61.5875 ), 1–8 August 2001 , I. Ghizoni Jr. leg. ( INPA 3522 ) . Paratype : BRAZIL : Amazonas : 1♂ , from the same vial as holotype ( INPA 3522 ) . Etymology. The specific name refers to the Tambor community, original inhabitants of the area that now encompasses the Jaú National Park; noun in apposition. Diagnosis. Males of M. tambor spec. nov. resemble those of M. vanini spec. nov. ( Figs 285–288 ) by the palp with RTA distally blunt and embolus bulging prolaterally at base, with long, distad, laminar subdistal projection and barely conspicuous membranous area (see Fig. 100 ). They are distinguished from the latter species by the RTA longer than wide ( Fig. 255 ) and embolus bulging retrolaterally at base ( Fig. 256 ) (RTA wider than long and embolus without retrolateral bulge in M. vanini spec. nov. ). Females are unknown. Description. Male ( holotype ): Total length 11.6. Prosoma 5.0 long, 4.5 wide. Opisthosoma 6.1 long, 3.4 wide. Eyes: diameters: 0.40, 0.32, 0.24, 0.31; interdistances: 0.30, 0.11, 0.45, 0.42, 0.30, 0.21. Legs: I: 31.5 (8.2, 2.7, 9.0, 9.3, 2.3); II: 33.6 (9.1, 2.9, 9.6, 9.6, 2.4); III: 22.0 (6.5, 2.0, 6.2, 5.8, 1.5); IV: 25.8 (7.2, 2.2, 7.0, 7.4, 2.0). Spination following the generic pattern. Palp: PTA subtriangular, distally rounded, roughly 1.5 times wider than long; RTA roughly 1.5 times longer than wide; cymbium with long retroproximal projection; subtegulum visible between 9–11 o’clock in ventral view; tegulum with small protrusion close to conductor base; conductor widest at base, distally fanned; embolus with subdistal projection roughly 2 times longer than wide (in ventral view) ( Figs 238–241 , 245–247 ). Female: unknown. Variation. Males (n = 2): total length 10.1–11.6; prosoma length 5.0–5.1. femur I length 7.8–8.2. Distribution. Only known from the type locality ( Fig. 318 ).