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 rivai spec. nov. Figs 242–244 , 248–249 , 319 Type material. Holotype : BRAZIL : Mato Grosso : ♀ , Alta Floresta [ ‑9.8760 , ‑56.0860 ], 8 August–20 September 2009 , J.S. Oliveira leg. ( IBSP 246428 ). FIGURES 245–249. 245–247 Meri quinari spec. nov. , male (UFMG 10165, holotype), left palp (245 prolateral, 246 ventral, 247 retrolateral); 248–249 Meri rivai spec. nov. , female (IBSP 246428, holotype) (248 epigyne, 249 vulva). Scale lines 1 mm. Etymology. The specific name refers to the businessman Ariosto da Riva, who in the early 70’s acquired the region currently known as Alta Floresta, to start a new settlement project; genitive case. Diagnosis. Females of M. rivai sp. nov. are distinguished from the remaining congeners by the epigyne with MS Erlenmeyer-shaped ( Fig. 242 ) and vulva with SP elongate with smooth margins ( Figs 243 ). Males are unknown. Description. Female ( holotype ): Total length 17.6. Prosoma 6.8 long, 6.8 wide. Opisthosoma 10.7 long, 7.5 wide. Eyes: diameters: 0.46, 0.41, 0.30, 0.36; interdistances: 0.47, 0.38, 0.84, 0.81, 0.43, 0.28. Legs: I: 27.0 (7.5, 3.3, 6.8, 7.3, 2.1); 28.6 (8.6, 3.5, 7.0, 7.5, 2.0); III: 21.0 (6.6, 2.9, 5.0, 4.9, 1.6); IV: 22.8 (7.2, 2.6, 5.4, 5.8, 1.8). Spination follows the generic pattern. Epigyne: EF wider than long; MAB elongate; MS longer than wide, widest posteriorly; HP triangular, 1.5 times longer than wide, opening at posterior margin of MS; LL touching posteriorly ( Figs 242 , 248 ). Vulva: internal ducts with FW antero laterad; GP slightly longer than wide, mediad, arising from ducts at first turn; FD anteriad to antero-laterad ( Figs 243–244 , 249 ). Male: unknown. Distribution. Only known from the type locality ( Fig. 319 ).