Sadala nigristernis Simon, 1880: 322 Sparassus nigristernis : Simon 1897: 35 Olios nigristernis : Simon 1903a Petrunkevitch 1911: 501 Jäger 2020: 81 Olios Revalidation of the genus Sadala Simon, 1880 with the description of a new genus of Neotropical huntsman spiders (Araneae, Sparassidae) Rheims, Cristina A. Jäger, Peter Zootaxa 2022 2022-05-13 5135 1 1 80 Simon, 1880 Simon 1880 [151,541,151,178] Arachnida Salticidae Sadala Animalia Araneae 14 15 Arthropoda species nigristernis   Figs 38–40, 43–44, 90      Sadala nigristernis Simon, 1880: 322(female holotypefrom São Paulo de Olivença[ ‑3.3667, ‑68.8667], Amazonas, Brazil, MNHN 1672).     Sparassus nigristernis: Simon 1897: 35.    Olios nigristernis: Simon 1903a; 1020;  Petrunkevitch 1911: 501;  Jäger 2020: 81(misplaced in  Olios).    Additionalmaterial examined.   BRAZIL: Pará: 3♀, Tucuruí[ ‑3.8167, ‑49.6333], Usina Hidrelétrica de Tucuruí, Rio Tocantins, no date, Equipe Butantanleg. ( IBSP 6893);  1♀, same locality as previous specimen,  July 1984, Equipe Butantanleg. ( IBSP 5642);  1♀, same locality as previous specimen, 1984 ( IBSP 5977);    Rondônia: 3♀, Usina Hidrelétrica de Samuel[ ‑8.7500, ‑63.4500],  December 1988, Equipe Butantanleg. ( IBSP 6616, 6617, 6622);    Acre: 1♀, Parque Nacional da Serra do Divisor, Pedernal[ ‑8.0337, ‑73.5500],  13 November 1996, R. S. Vieiraleg. ( IBSP 9144);  1♀, Manoel Urbano, Parque Estadual do Chandless( ‑9.4081, ‑69.9292),  23–25 November 2010, W.E.F. Moratoleg. (‑exUFMG 6180);  1♀, Senador Guiomard, Reserva Extrativista de Catuaba[ ‑10.0667, ‑67.6167], 2000–2002, E. Moratoleg. ( IBSP 87532);    Mato Grosso: 1♀, Cláudia[ ‑11.5000, ‑54.8833], Fazenda Iracema,  2–17 April 1997, M. Caleffoleg. ( IBSP 10226).   Diagnosis.Females of  S. nigristernisresemble those of  S. velox( Figs 75–77) by the epigyne with MS roughly trapezoid, widest medio-anteriorly ( Fig. 38). They are distinguished from those of the latter species by the MS two times longer than wide and margins of CO oblique ( Fig. 38) (MS as long as wide and margins of CO roughly longitudinal in  S. velox). Males are unknown.   Redescription. Female ( holotype):Total length 19.4. Prosoma: 7.9 long, 7.3 wide. Opisthosoma: 10.8 long, 3.7 wide. Eyes: diameters: 0.58, 0.44, 0.30, 0.45; interdistances: 0.48, 0.20, 0.74, 0.70, 0.48, 0.32. Legs: I: 32.9 (9.2, 3.7, 8.7, 9.0, 2.3); II: 34.6 (10.1, 3.8, 9.1, 9.4, 2.2); III: 25.7 (8.0, 3.3, 6.4, 6.1, 1.9); IV: 28.4 (8.7, 3.0, 7.0, 7.6, 2.1). Spination follows the generic pattern. Epigyne: EF longer than wide; MAB embedded in EF; TP two times longer than wide; LL touching posteriorly ( Figs 38, 43). Vulva: FW antero-mediad; GP cylindrical, slightly longer than wide, arising from ducts at second turn; SP irregularly rounded; FD antero laterad ( Figs 39–40, 44).  Male:Unknown.  Variation.Females (n = 9): total length 16.0–23.7; prosoma length 7.2–8.2; femur I length 8.3–10.0.   Distribution.Known from northern and central Brazil, states of Amazonas, Acre, Rondônia, Pará and Mato Grosso( Fig. 90). 3861775510 IBSP Rio & Equipe Butantan Brazil -3.8167 Usina Hidreletrica de Tucurui 7 -49.6333 Tucurui 14 15 IBSP 6893 3 3 Tocantins 3861775519 1984-07 IBSP Butantan Brazil -3.8167 Usina Hidreletrica de Tucurui 7 -49.6333 Tucurui 14 15 IBSP 5642 1 1 Para 3861775552 [502,1177,490,517] 1984-07 IBSP Butantan Brazil -3.8167 Usina Hidreletrica de Tucurui 7 -49.6333 Tucurui 14 15 IBSP 5977 1 1 Para 3861775556 1988-12 IBSP Equipe Butantan Brazil -8.75 Usina Hidreletrica de Samuel 7 -63.45 14 15 IBSP 6616, 6617, 6622 3 3 Rondonia 3861775422 1996-11-13 R S. Vieira Brazil -8.0337 Pedernal 7 -73.55 Parque Nacional da Serra do Divisor 14 15 IBSP 9144 1 1 Acre 3861775317 2010-11-23 2010-11-25 2010-11-23 W. E. F. Morato Brazil -9.4081 Parque Estadual do Chandless 7 -69.9292 Manoel Urbano 14 15 1 1 Para 3861775529 IBSP E. Morato Brazil -10.0667 Reserva Extrativista de Catuaba 7 -67.6167 Senador Guiomard 14 15 IBSP 87532 1 1 Para 3861775345 1997-04-02 1997-04-17 1997-04-02 IBSP Fazenda Iracema & M. Caleffo Brazil -11.5 Claudia 7 -54.8833 14 15 IBSP 10226 1 1 Mato Grosso