Meri pictitarsis Simon, 1880

Rheims, Cristina A. & Jäger, Peter, 2022, Revalidation of the genus Sadala Simon, 1880 with the description of a new genus of Neotropical huntsman spiders (Araneae, Sparassidae), Zootaxa 5135 (1), pp. 1-80 : 57-60

publication ID	https://doi.org/ 10.11646/zootaxa.5135.1.1
publication LSID	lsid:zoobank.org:pub:0CC0D586-E099-4593-9032-EA1885F00F3B
DOI	https://doi.org/10.5281/zenodo.6820302
persistent identifier	https://treatment.plazi.org/id/039787EF-FF99-C935-FF32-FE51FBAAFEDE
treatment provided by	Plazi
scientific name	Meri pictitarsis Simon, 1880
status	comb. nov.

Treatment

Meri pictitarsis Simon, 1880 View in CoL comb. nov.

Figs 221–237 View FIGURES 221–224 View FIGURES 225–230 View FIGURES 231–233 View FIGURES 234–237 , 318 View FIGURES 315–318

Sadala pictitarsis Simon, 1880: 320 (1 male, 5 females, 1 juv. Syntypes from Tefé GoogleMaps [‑3.3667, ‑64.7000], Amazonas, Brazil, deposited in MNHN 1140 View Materials , examined).

Sparassus pictitarsis: Simon 1897: 35 .

Olios pictitarsis: Simon 1903a: 1020 View in CoL ; Petrunkevitch 1911: 502; Jäger 2020: 81 (misplaced in Olios View in CoL )

Additional material examined. BRAZIL: Roraima: 1♀, Caracaraí, Rio Jufari, Arquipélago Mariuá‑Jauaperi , Tucano (‑1.0146, ‑62.1051), 25 May 2012, C.A. Rheims leg. ( IBSP 166269 View Materials ) GoogleMaps ; 1♀, same locality as previous specimen, 31 May 2012, C.A Rheims & R. P. Indicatti leg. ( IBSP 271302 View Materials ) GoogleMaps . Amazonas: 1♀, Seringalzinho, Parque Nacional do Jáú [‑1.8667, ‑61.5833], April 2004, M.L. Oliveira leg. ( INPA 4587 View Materials ) GoogleMaps ; 1♂, Presidente Figueiredo, Usina Hidrelétrica de Balbina [‑1.9000, 59.4667], 1987‑1988, Equipe IBSP leg. ( IBSP 7349 View Materials ) GoogleMaps ; 1♀, Coari, Porto Urucu, Base de Operções Geológicas Pedro de Moura (-4.8760, -65.2795), 1 November 2008, S.C. Dias et al. leg. ( MPEG 30754 View Materials ) GoogleMaps ; 1♂, Novo Aripuanã [‑5.1238, ‑60.3762], Estrada Cade, 4 October 1974, Geluqueque leg. ( INPA 4562 View Materials ) GoogleMaps ; 1♂, Rio Tiqué, Igarapé Araça [‑5.1990, ‑59.7620], 12–18 May 1982, B. Mascarenhas leg. ( IBSP 20795 View Materials ) GoogleMaps .

Diagnosis. Males of M. pictitarsis resemble those of M. yaciba spec. nov. ( Figs 297–300 View FIGURES 297–303 ) by the palp with RTA with a ventral branch ( Fig. 222 View FIGURES 221–224 ). They are distinguished from the latter species by RTA distally blunt with ventral branch triangular, slightly longer than wide ( Figs 222–223 View FIGURES 221–224 ) and embolus with subdistal projection long and laminar ( Fig. 224 View FIGURES 221–224 ) (RTA distally pointed with ventral branch roughly three times longer than wide and embolus with subdistal projection hook-shaped in M. yaciba spec. nov.). Females resemble those of M. yaciba spec. nov. ( Figs 301–303 View FIGURES 297–303 ) by the epigyne with MS widest anteriorly, partly covering LL and EP triangular. They are distinguished by the MS with posterior margins in line with posterior margin of LL and EP slightly longer than wide (Posterior margin of MS anterior to that of LL and EP more than 1.5 times longer than wide in M. yaciba spec. nov.).

Redescription. Male (IBSP 20795): Total length 13.0. Prosoma 5.0 long, 5.0 wide. Opisthosoma 7.4 long, 4.9 wide. Eyes: diameters: 0.40, 0.34, 0.24, 0.28; interdistances: 0.22, 0.06, 0.46, 0.40, 0.18, 0.10. Legs: I: 31.4 (8.6, 2.9, 8.7, 8.8, 2.4). II: 33.3 (9.2, 2.9, 9.4, 9.3, 2.5); III: 22.7 (6.8, 2.3, 6.0, 5.9, 1.7); IV: 27.7 (7.6, 2.3, 8.8, 7.0, 2.0). Spination follows the generic pattern except metatarsus IV: p1-1-1. Palp: PTA wider than long, triangular, distally rounded; RTA roughly 2 times longer than wide; subtegulum visible between 9–11 o’clock in ventral view; tegulum slightly protruding close to conductor base; conductor widest at base, distally fanned; embolus bulging prolaterally at base, gently curved, with subdistal projection almost 5 times longer than wide, mediad ( Figs 221–224 View FIGURES 221–224 , 231–233 View FIGURES 231–233 ).

Female (IBSP 166269): Total length 14.8. Prosoma 5.7 long, 5.2 wide. Opisthosoma 8.5 long, 5.1 wide. Eyes: diameters: 0.45, 0.36, 0.30, 0.36; interdistances: 0.30, 0.23, 0.60, 0.60, 0.35, 0.25. Legs: I: 24.9 (7.1, 3.0, 6.4, 6.6, 1.8); II: 26.4 (7.6, 3.0, 7.0, 7.0, 1.8); III: 18.2 (5.7, 2.2, 4.5, 4.4, 1.4); IV: 20.9 (6.5, 2.1, 5.3, 5.4, 1.6). Spination follows the generic pattern. Epigyne: EF wider than long; MAB inconspicuous; EP triangular, opening at posterior margin of MS ( Figs 225 View FIGURES 225–230 , 134 View FIGURES 133–137 ). Vulva: internal ducts with FW mediad; GP 2 times longer than wide, antero mediad, arising from ducts at first turn; SP oval; FD laterad ( Figs 226–227 View FIGURES 225–230 , 235 View FIGURES 234–237 ).

Variation. Males (n = 3): total length 9.8–13.0; prosoma length 4.8–5.0; femur I length 7.8–8.6. Females (n = 7): total length 13.3–16.0; prosoma length 5.2–6.2; femur I length 6.4–7.3. Female epigyne can have under developed EP ( Figs 228 View FIGURES 225–230 , 236 View FIGURES 234–237 ), spherical SP and FD antero-laterad ( Figs 229–230 View FIGURES 225–230 , 237 View FIGURES 234–237 ).

Distribution. Known from central Amazonia (Amazonas, Brazil) ( Fig. 318 View FIGURES 315–318 ).