Breda tristis Mello-Leitao 1944
Creators: name: Ruiz, Gustavo R. S.
name: Brescovit, Antonio D.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Breda
Breda tristis

description: Breda tristis Mello-Leitão, 1944
Figs 5, 41, 85–90, 103
Breda tristis Mello-Leitão, 1944: 377, fig. 71 (Female holotype from Balcarce, Provincia de Buenos Aires, Argentina, 1942, M. Birabén, deposited in MLP 16220, examined); Galiano 1980: 36; Platnick, 2013.
Bredops extraordinarius Mello-Leitão, 1944: 378, fig. 72 (Male holotype and male paratype from Tandil, Argentina, Prosen, deposited in MLP 16225 and MNRJ 2234 respectively, examined). Synonymized by Galiano (1980).
Additional material examined. BRAZIL: Rio Grande do Sul: Capão Novo: 1m, 13.I.1998, V. Becker (MCTP 10088); Xangrilá: 1m, 17.II.1995, A.A. Lise (MCTP 6170); Torres: 1f, 29.XI–12.I.1981, Goloboff leg. (MACN); ARGENTINA: Corrientes: Ituzaingó: 1m, 1f, VII.1974, Williner (MACN); Córdoba: La Cumbre: 1f, XII.1991, M. Ramírez & C. Scioscia (MACN); 3f, X.1991, C. Scioscia (MACN); Punilla: 3m, III.1993, M. Rumboll (MACN); Buenos Aires: Villa del Lago, 1f, V.1973, Cesari (MACN); Paraje el Centinela, 1f, 12.III.2005, CAG-AG (MACN); 1m, 7f, 20.III.1983, E. Maury (MACN); Hudson: 1m, 2.IX.1984, M. Ramírez (MACN-Ar 1126); Ramalto: 1m, 20.III.1983, Zanetic & P. Goloboff (MACN); La Brava: 1f, IV.1976, De la Serna (MACN); San Pedro: 1f, XI.1991, M. Ramírez (MACN); Águas Blancas: LNU, 2f, 25.XI.1963, P. Rim (MACN); Olavarria: Sierra La China, 1m, 7.XII.1969, M.E. Galiano (MACN); Sierra de la Ventana: 1m, 1f, X.1970, M.E. Galiano (MACN); Abra de la Ventana: 1f, X.1970, M.E. Galiano (MACN); Tandil: 5f, 2–5.IV.1969, E. Maury (MACN); 1m, IV.1995, C. Scioscia (MACN); 1m, V.1967, E. Maury (MACN); 2f, 15.V.1967, E. Maury (MACN); 1f, 7.VIII.1965, Mallevile & E. Maury (MACN); Balcarce: Sierra de la Cruz, 2f, 21.V.1973, Cesari (MACN); Sierra “La Barrosa”, 2f, 18– 21.VII.1974, E. Maury (MACN); As. La Vigilancia, 20 km E from Balcarce, 1f, 16.IV.1983, E. Maury (MACN); URUGUAY: Canelones: Marindia: 1f, I–II.1990, F. Costa (FCEA 923); Lavalleja: Minas: Co. Arequita, 34 ° 17’42”S, 55°15’58”W, 1f, XII.1997, M. Ramírez & L. Compagnucci (MACN); Rocha: Parque Nacional San Miguel: 3f, 19.II.1980, E. Maury (MACN).
Diagnosis. Breda tristis differs from the other species of Breda by having the extremity of the tibial apophysis dilated and curved ventrally in the male palp (Fig. 88). The female differs from the other known females by having the abdomen entirely black, only with a pair of small transverse abdominal stains on its posterior half (Figs 5, 86).
Description. Male (MCTP 10088). Total length: 6.75. Carapace length: 3.25; width: 2.17; height: 1.10. Carapace dark brown with a few hairs (Fig. 85). Length of the ocular quadrangle: 1.32. Width of the anterior eye row: 1.65; posterior: 1.65. Chelicera dark brown, with three teeth on promargin and one on retromargin. Labium, sternum and endites dark brown. RvTA long and curved ventrally, with distal end slightly dilated, embolus tip long and straight (Figs 87–88, 41). Legs 1423, I dark brown, excepting metatarsus I and tarsus I yellow, II–IV yellow; tibia I densely covered with black hairs; metatarsus IV laterally dark brown. Femur I 2.17x0.95; II 1.65x0.60; III 1.50; IV 1.85. Patella I 1.32; II 1.00; III 0.85; IV 0.97. Tibia I 1.85x0.72; II 1.25x0.40; III 1.02; IV 1.62. Metatarsus I 1.15; II 0.85; III 0.95; IV 1.35. Tarsus I 0.75; II 0.60; III 0.50; IV 0.62. Leg spination: femur I d1-1-0, p1-2; II d1- 1-1, p1-2, r1; III d1-1-1, p1-2, r1-2 (r2di); IV d1-1-1, r1di. Patella I, II, III, IV 0. Tibia I v1 pdi; II v2-2 -1p; III p1-1 (p1), r1-1-1, v1 p-2; IV p0, r1-0-0, v1 p-1p-2 (v1 p-0-2). Metatarsus I, II v2-2; III p2di, r2di, v1 p-2; IV p1di, r1di, v1 p2. Abdomen dark brown variegated, with scutum and two transverse stripes of white hairs (Fig. 85); ventrally dark brown. Spinnerets dark brown.
Female (holotype). Total length: 10.40. Carapace length: 3.90; width: 2.70; height: 1.35. Carapace as in male. Length of the ocular quadrangle: 1.62. Width of the anterior eye row: 1.92; posterior: 2.05. Chelicera dark brown, with five teeth on promargin and one on retromargin. Labium, sternum and endites dark brown. Palp light brown, retrolaterally dark brown. Legs 4123, I dark brown, II–IV light brown; distal patella I and tibia I darker. Femur I 2.15x1.02; II 1.75x0.72; III 1.65; IV 2.15. Patella I 1.42; II 1.15; III 1.00; IV 1.15. Tibia I 1.62x0.72; II 1.35x0.50; III 1.25; IV 1.90. Metatarsus I 0.95; II 0.85; III 1.02; IV 1.50. Tarsus I 0.72; II 0.65; III 0.65; IV 0.72. Leg spination: femur I d1-1-0, p1; II d1-1-1, p1; III d1-1-1, p2di; IV d1-1. Patella I, II, III, IV 0. Tibia I v2; II v1; III p1, r1-1 (r1), v1 pdi; IV p0, r0, v1 p-0-2. Metatarsus I, II v2-2; III p2di, r2di, v2 di; IV p1di, r1di, v1 p-2. Abdomen dark brown with a pair of transverse dorsal posterior stains (Fig. 86); ventrally light brown with no tuft close to the spinnerets. Epigyne as in Figs 89-90. Spinnerets light brown.
Distribution. Southern Brazil, Uruguay and Northeastern Argentina (Fig. 103).
description: Published as part of Ruiz, Gustavo R. S. & Brescovit, Antonio D., 2013, Revision of Breda and proposal of a new genus (Araneae: Salticidae), pp. 401-433 in Zootaxa 3664 (4) on pages 424-426, DOI: 10.11646/zootaxa.3664.4.1, http://zenodo.org/record/222764