Eustala vellardi Mello-Leitão, 1924

Poeta, Maria Rita M. & Teixeira, Renato Augusto, 2017, Description of the male of the spider Eustala vellardi Mello-Leitão, 1924, the female of E. delasmata Bryant, 1945 and seven species of Eustala Simon, 1895 declared as nomina dubia (Araneae, Araneidae), Zootaxa 4273 (1), pp. 112-120 : 113-115

publication ID

https://doi.org/10.11646/zootaxa.4273.1.8

publication LSID

lsid:zoobank.org:pub:A7518368-81D0-4E0B-A194-54235BA0188C

DOI

https://doi.org/10.5281/zenodo.6040625

persistent identifier

https://treatment.plazi.org/id/03DB1F36-2436-892B-DDE3-AB633A5422FD

treatment provided by

Plazi

scientific name

Eustala vellardi Mello-Leitão, 1924
status

 

Eustala vellardi Mello-Leitão, 1924

Figs 1–9 View FIGURES 1 – 9 , 19 View FIGURE 19

Eustala vellardi Mello-Leitão, 1924: 279 , female holotype from Nova Iguaçu [22°45'22"S, 43°27'38"W], Rio de Janeiro, Brazil ( MNRJ 351 View Materials , examined). Roewer 1942: 767; WSC 2017 View Materials . GoogleMaps

Additional material examined. BRAZIL, Amazonas: Santa Isabel do Rio Negro ( Maturacá ), 0°16’21”S, 65°28’32”W, 1 ♂, 12.X.1990, A.A. Lise ( MCTP 28720 View Materials ) GoogleMaps . Pará: Oriximiná ( Fazenda Recanto Oriental ), 1°45’42”S, 55°51’49”W, 1 ♀, 22.I.2009, E.L.C. Silva ( MCTP 28672 View Materials ) GoogleMaps ; Itaituba ( Comunidade Santo Antônio ), 4°16’01”S, 55°59’35”W, 2 ♀, 07.VII.2003, J.G. Frota ( MCTP 14735 View Materials ) GoogleMaps . Mato Grosso: ( Pantanal ), 3 ♀, 04–10.VIII.1992, A.A. Lise & A. Braul Jr. ( MCTP 2295 View Materials ) ; Chapada dos Guimarães, 15°27’29”S, 55°45’08”W, 1 ♂, M. Hoffmann (MCN 11988); Poconé , 16°15’59”S, 56°37’35”W, 1 ♂, A.A. Lise & A. Braul Jr. ( MCTP 2427 View Materials ) GoogleMaps ; ( Estrada Porto Cercado ), 16°16’11”S, 56°37’06”W, 3 ♂, 1 ♀, 02.VIII.1993, A.A. Lise & A. Braul Jr. ( MCTP 2608 View Materials ) GoogleMaps . Mato Grosso do Sul: Miranda (Pousada Caiman), 20°14’09”S, 56°22’30”W, 2 ♂, A.C. Meyer ( MCN 21001 View Materials ) GoogleMaps . Minas Gerais: Varginha , 21°33’21”S, 45°26’12”W, 2 ♀, 28.VII.2011, R.C. Francisco ( MCTP 32066 View Materials ) GoogleMaps . Rio Claro , 22°24'06"S, 45°16'32"W, 1 ♀, 03.V.2011, R.C. Francisco ( MCTP 32143 View Materials ) GoogleMaps . Rio Grande do Sul: São Borja ( Reserva Biológica São Donato ), 29°01’16”S, 56°09’43”W, 1 ♀, 16.III.2013, M. Machado ( MCTP 36717 View Materials ) GoogleMaps . PARAGUAY: 1 ♂, 1 ♀, 1895, Dr. Temetz ( NHMB 1074 View Materials a) . Concepción ( Fonciere ): 22°29’12”S, 57°50’17”W, 3 ♀, 2008 ( MHNG). GoogleMaps

Diagnosis. The males of Eustala vellardi ( Figs 1–3 View FIGURES 1 – 9 ) are similar to those of E. fuscovitatta (Keyserling, 1894) due to the elongated abdomen and dorsal color pattern. Eustala vellardi differs from this species by the acute terminal apophysis ( Fig. 1 View FIGURES 1 – 9 ) and by the very short embolus, unlike E. fuscovitatta which have a laminar terminal apophysis and a large and exposed embolus (see Chickering 1955, figure 3). The female of this species ( Figs 4–9 View FIGURES 1 – 9 ) resemble those of E. perfida Mello-Leitão, 1947 (see Poeta et al. 2010, figures 24–26) by the epigynum with smooth and rod-shaped scape ( Figs 4, 7 View FIGURES 1 – 9 ). They can be separated by the elongated abdomen of E. vellardi ( Figs 6, 9 View FIGURES 1 – 9 ), which is subtriangular in E. perfida , and by the epyginum with the copulatory openings forming a central septum on the median plate in E. vellardi ( Fig. 7 View FIGURES 1 – 9 ).

Description. Male ( MCTP 2608). Carapace orange. PME and LE dark bordered ( Fig. 3 View FIGURES 1 – 9 ). LE with macrosetae. Sternum yellow. Abdomen elongated, projected above the cephalothorax, and pointed distally, dorsum whitish with dark brown longitudinal stripe ( Fig. 3 View FIGURES 1 – 9 ), ventral surface discolored with a large light brown median band. Legs yellow, with patella I to tarsus I brown. Total length 7.75. Carapace length 3.30, width 2.05. Leg formula 1423. Length leg I: femur 3.46; patella+tibia 5.13; metatarsus 4.03; tarsus 1.21; total 13.83. Patella +tibia II 3.88; III 2.06; IV 4.36.

Female ( MCTP 2608). Carapace colored as the male. Sternum dark grey. Abdomen as the male, dorsum whitish, inconspicuous longitudinal stripes ( Fig. 6 View FIGURES 1 – 9 ), venter as the male. Legs orange. Total length 7.92. Carapace length 3.20, width 2.04. Total length 13.30. Leg formula 1243. Length leg I: femur 3.98; patella+tibia 6.13; metatarsus 4.64; tarsus 1.30; total 16.05. Patela+tibia II 5.69; III 2.79; IV 5.56.

Variation. Male (n=5): total length: 7.75–8.55; carapace length 3.15–3.50, width 1.95–2.25. Female (n=5): total length: 11.95–14.85; carapace length 3.45–4.40, width 2.35–2.75. Males and females may have the abdomen with dark-brown longitudinal stripes, and/or small dots laterally; yellowish; pale yellow with a continuous longitudinal black stripe; or yellowish with circular dark brown spots arranged in a longitudinal line (holotype, Fig. 9 View FIGURES 1 – 9 ).

Distribution. Brazil: Amazonas, Pará, Mato Grosso, Mato Grosso do Sul, Rio de Janeiro, and Rio Grande do Sul. Paraguay: Concepción ( Fig. 19 View FIGURE 19 ).

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

WSC

Westfield State College, Museum and Herbarium

MCTP

Museu de Ciencias

MCN

McNeese State University

NHMB

Naturhistorisches Museum, Basel

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Araneidae

Genus

Eustala

Loc

Eustala vellardi Mello-Leitão, 1924

Poeta, Maria Rita M. & Teixeira, Renato Augusto 2017
2017
Loc

Eustala vellardi Mello-Leitão, 1924 : 279

Roewer 1942: 767
Mello-Leitao 1924: 279
1924