Meri vanini, Rheims & Jäger, 2022

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 : 70-73

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.6820312

persistent identifier

https://treatment.plazi.org/id/039787EF-FFE4-C946-FF32-FBBCFBACFBD2

treatment provided by

Plazi

scientific name

Meri vanini
status

sp. nov.

Meri vanini   sp. nov.

Figs 96–99, 101–102 View FIGURES 95–98 View FIGURES 99–102 , 285–296 View FIGURES 285–291 View FIGURES 292–296 , 319 View FIGURES 319–320

Type material. Holotype: BRAZIL: Mato Grosso: ♂, Alta Floresta [‑9.8760, ‑56.0860], 8 August–20 September 2009, J.S. Oliveira leg. ( IBSP 246423 View Materials ) GoogleMaps   . Paratypes: BRAZIL: Mato Grosso: 1♀, same collection data as holotype ( IBSP 246406 View Materials ) GoogleMaps   ; Piauí: 1♂, Guaribas, Parque Nacional da Serra das Confusões (‑9.2211, ‑43.4892), no date, P. R. R GoogleMaps   . Silva et al. leg. (CHNUFPI 450)   ; Rondônia: 1♀, Porto Velho [‑8.7667, ‑63.9000], Caiçara (transecto 4), 28 February 2010, M.C. Silveira leg. ( MZSP 33350 View Materials ) GoogleMaps   ; 1♀, same locality as previous specimen, (transecto 2), 24 November 2010, M.C. Silveira leg. ( MZSP 37241 View Materials ) GoogleMaps   ; Ceará: 1♀, Ubajara, Serra de Ibiapaba, Sítio do Alemão (‑3.8474, ‑40.8885), 22 May 2018, A. Souza et al. leg. (CHNUFPI 2412); Pará GoogleMaps   : 1♂, 1♀, Belterra [‑2.6387, ‑54.9348], Floresta Nacional do Tapajós, Km 117, 15–17 November 2018, Curso EBAN GoogleMaps   leg. ( IBSP 224164 View Materials )   ; 1♂, Juruti, Beneficiamento (ponto 1) (‑2.5076, ‑56.1776), 8 May 2010, B. V GoogleMaps   . B. Rodrigues leg. ( MPEG 30859 View Materials )   ; 1♀, Juruti, Sítio Barroso (‑2.4616, ‑ 56.0032), 7 August 2004, D.F. Candiani leg. ( MPEG 8663 View Materials ) GoogleMaps   .

Additional material examined. BRAZIL: Pará: 1♀, Belém, Parque Estadual do Utinga [‑1.4272, ‑48.4380], 16 September 2009, L. T. Miglio leg. ( MPEG 30771 View Materials ) GoogleMaps   ; 1♀, Mocambo [‑1.4500, ‑48.4500], September 1984, I. Knysak leg. ( IBSP 72715 View Materials ) GoogleMaps   ; 1♀, Barcarena, Reserva Samaúma (‑1.4953, ‑48.7100), 20 November 2001, D.D. Guimrães leg. ( MPEG 316 View Materials ) GoogleMaps   ; 1♀, Juruti, Platô Capiranga (linha 168E) (‑2.4728, ‑56.2082), 10 August 2008, N.F. Lo Man Hung leg. ( MPEG 30741 View Materials ) GoogleMaps   ; 1♀, Altér do Chão, Arioca [‑2.5054, ‑54.9522], 15 June 2007, E. Borari leg. ( MPEG 30640 View Materials ) GoogleMaps   ; 1♀, Tucuruí, Usina Hidrelétrica de Tucuruí, Rio Tocantins [‑3.8167, ‑49.6333], no date, Equipe Butantan leg. ( IBSP 6891 View Materials ) GoogleMaps   ; 2♀, 2juvs, Tucuruí [‑3.8167, ‑49.6333], December 1984, Equipe Butantan leg. ( IBSP 5630 View Materials ) GoogleMaps   ; 1♀, same locality as previous specimen, July 1984, Equipe Butanta leg. ( IBSP 5352 View Materials ) GoogleMaps   ; 1♀, Tucuruí, Margem esquerda do Rio Tocantins [‑3.8167, ‑49.6333], 15 March 1984, no leg. ( MPEG) GoogleMaps   ; Ceará: 1♂, Pacatuba, Reserva Particular do Patrimônio Nacional Monte Alegre [‑3.9333, ‑38.6000], 10 March 2018, R. Varela leg. ( IBSP 227036 View Materials ) GoogleMaps   ; Rondônia: 1♀, Porto Velho [‑8.7667, ‑63.9000], Caiçara (transecto 5), 17 November 2010, R. B. Almeida leg. ( MZSP 37307 View Materials ) GoogleMaps   ; 1♀, same locality as precious specimen, Caiçara (transecto 3), 22 November 2010, R. B. Almeida leg. ( MZSP 35875 View Materials ) GoogleMaps   ; 1♀, same locality as previous specimen, Caiçara (transecto 4), 25 August 2010, S. Outeda Jorge leg. ( MZSP 34800 View Materials ) GoogleMaps   ; Mato Grosso: 1♀, Alta Floresta [‑9.8760, ‑56.0860], 8 August–20 September 2009, J.S. Oliveira leg. ( IBSP 246432 View Materials ) GoogleMaps   . PERU: Loreto: 1♀, Rio Ampiyacu [‑3.3166, ‑71.8500], 9 December 1961, B. Malkin leg. ( AMNH) GoogleMaps   .

Etymology. The species name honors the late Prof. Sergio Antonio Vanin (1948–2020), of the Zoology Department of the University of São Paulo. A fantastic teacher, a friend and one of the first author’s greatest influences in the study of taxonomy. He is truly missed; name in genitive case.

Diagnosis. Males of M. vanini   spec. nov. resemble those of M. tambor   spec. nov. ( Figs 253–256 View FIGURES 253–259 ) 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 View FIGURES 99–102 ). They are distinguished from the latter species by the RTA ( Fig. 287 View FIGURES 285–291 ) wider than long and embolus retrolaterally straight ( Fig. 288 View FIGURES 285–291 ) (RTA longer than wide and embolus bulging retrolaterally at base in M. tambor   spec. nov.). Females resemble those of M. pictitarsis   comb. nov. ( Figs 225–227 View FIGURES 225–230 ) and M. yaciba   spec. nov. ( Figs 301–303 View FIGURES 297–303 ) by the epigyne with LL covered by MS and not touching posteriorly and vulva with GP arising from ducts at first turn. They are distinguished from both species by the MS widest posteriorly, with anterior margins slightly constricted and EP roughly trapezoid ( Fig. 289 View FIGURES 285–291 ) (MS widest posteriorly, with anterior margins not constricted and MS triangular in M. pictitarsis   and M. yaciba   spec. nov.).

Description. Male (MPEG 30859, paratype): Total length 10.0. Prosoma 4.5 long, 4.4 wide. Opisthosoma 5.2 long, 3.2 wide. Eyes: diameters: 0.37, 0.35, 0.27, 0.31; interdistances: 0.25, 0.08, 0.45, 0.41, 0.26, 0.17. Legs: I: 28.8 (7.7, 2.6, 8.0, 8.4, 2.1); II: 30.9 (8.3, 2.7, 8.7, 9.0, 2.2); III: 20.8 (6.1, 2.1, 5.5, 5.5, 1.6); III: 23.3 (6.7, 2.1, 6.3, 6.4, 1.8). Spination follows the generic pattern. Palp: PTA rounded, roughly as wide as long; cymbium with small 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 gently curving subdistally with subdistal projection long, roughly 2.5 tmes longer than wide ( Figs 285–288 View FIGURES 285–291 , 292–294 View FIGURES 292–296 ).

Female (MZSP 37241, paratype): Total length 14.5. Prosoma 6.0 long, 5.3 wide. Opisthosoma 8.1 long, 5.5 wide. Eyes: diameters: 0.41, 0.37, 0.30, 0.36; interdistances: 0.25, 0.20, 0.58, 0.54, 0.32, 0.16. Legs: I: 24.2 (7.0, 2.6, 6.4, 6.5, 1.7); II: 24.3 (7.3, 2.5, 6.5, 6.3, 1.7); III: 18.6 (5.7, 2.3, 4.7, 4.4, 1.5); IV: 20.9 (6.5, 2.2, 5.3, 5.4, 1.5). Epigyne: EF wider than long; MAB inconspicuous; MS longer than wide; EP wider than long with anterior margin slightly rounded ( Figs 289 View FIGURES 285–291 , 295 View FIGURES 292–296 ). Vulva: internal ducts with FW dilated, mediad; GP slightly longer than wide, antero mediad; SP spherical; FD anteriad ( Figs 290–291 View FIGURES 285–291 , 296 View FIGURES 292–296 ).

Variation. Males (n = 4): total length 10.0–14.1; prosoma length 4.5–6.5; femur I length 7.7–10.0. Females (n = 10): total length 12.7–15.2; prosoma length 5.2–6.3; femur I length 6.0–7.5.

Distribution. Known from northern Brazil and northeastern Peru ( Fig. 319 View FIGURES 319–320 ).

R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

T

Tavera, Department of Geology and Geophysics

MPEG

Museu Paraense Emilio Goeldi

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Meri