Breda modesta (Taczanowski, 1878) Taczanowski, 1878

Ruiz, Gustavo R. S. & Brescovit, Antonio D., 2013, Revision of Breda and proposal of a new genus (Araneae: Salticidae), Zootaxa 3664 (4), pp. 401-433 : 419-420

Breda modesta (Taczanowski, 1878) comb. nov.

Figs 36 , 68–72 , 101

Marptusa modesta Taczanowski, 1878: 320 (syntypes from Amable Maria, Junín, Peru, Taczynska, deposited in MCZ, examined).

Balmaceda modesta: Peckham & Peckham, 1894: 101 ; Platnick, 2013.

Breda leucoprocta Mello-Leitão, 1940: 184 , figs. 15–16 (Female holotype from Guyana, deposited in the BMNH, examined through photographs by Cristina Rheims ); Platnick, 2013. Syn. nov.

Thianioides spinimanu Mello-Leitão, 1941a: 190 , fig. 84, pl. 12, fig. 56 (Male holotype from Cabaña, Córdoba, Argentina, II– III.1939, M. Birabén & M.I.H. Scott, deposited in the MLP 14999, examined). Syn. nov.

Breda spinimana: Galiano, 1981: 12 ; Platnick, 2013.

Additional material examined. BRAZIL: Pará: Juruti: Platô do Rio Juruti, 1m, 12.IX.2002, A. Bonaldo (MPEG 448); Mato Grosso: Diamantino, Fazenda Três Lagoas, 1m, 19.X.1964, Expedição do Departamento de Zoologia (MZSP 10713); São Paulo: Rio Claro: 1m, 1f, XI.1941, F.S. Pereira (MZSP 25422); Rosana: Usina Hidrelétrica Sérgio Motta, 1f, (IBSP 59768); PARAGUAY: Estanislao, 1m, I.1946 –1947, Bridarolli & Williner (MACN); ARGENTINA: Formosa: Parque Nacional Rio Pilcomayo: 1m, XI.1990, M. Ramírez (MACN); Misiones: Eldorado: 1m, 1f, XI.1948, M. Birabén (MACN); Santiago Del Estero: Departamento Moreno: Mercedes: 10 km E from Amamá, 1m, VII–VIII.1996, D. Vezzani (MACN); Corrientes: Manantiales: 1m, I.1961, Apóstol, Tonima (MACN); Gualeguay: 1m, IX.1989, M. Ramírez (MACN); La Rioja: 1m, 1f, XI.1959, Viana (MACN); Patquía: Guayapa 1m, 1f, 20.V.1962, L. Yivoff (MACN); 1m, XI.1963, Yivoff (MACN); Santa Fé: Las Gamas, 20 km W from Vera, 1m, II.1995, M. Ramírez & Faibovich (MACN); San Juan: El Encón: 1m, 18.I.1982, A. Roig (MACN); Entre Ríos: Arroyo Gualeguaychu y Ruta 14, 1m, 10.XII.1982, P. Goloboff & M. Ramírez (MACN); Res. Mocoretá, 1m, 1f, IV.1978, Viana (MACN); Gualeguay: 1m, IX.1989, M. Ramírez (MACN); Buenos Aires: Atucha: 1m, 1f, V.1987, M. Ramírez (MACN); 1m, V.1987, M. Ramírez (MACN); Benavidez: 1m, S. Rodriguez (MACN).

Diagnosis. Breda modesta differs from the other species of the genus by having developed ventral spines on the male tibia I ( Fig. 68 ). The females are similar to those of Breda bicruciata ( Fig. 71 ), from which they seem to differ by having the thoracic region as high as the cephalic region in the carapace.

Description. Male (holotype of T. spinimanu ). Total length: 6.65. Carapace length: 3.05; width: 2.05; height: 0.95. Carapace dark brown, almost withouth hairs or with a longitudinal stripe of long white hairs like that of Breda milvina ( Fig. 7 ). Length of the ocular quadrangle: 1.27. Width of the anterior eye row: 1.55; posterior: 1.55. Chelicera light brown, with four teeth on promargin and one on retromargin. Labium, sternum and endites light brown. RvTA with distal ventral concavity and embolus tip short and relatively straight ( Figs 69–70 , 36 ). Legs 1423, brown; I slightly darker. Femur I 1.85x0.73; II 1.52x0.57; III 1.42; IV 1.77. Patella I 1.25; II 0.95; III 0.75; IV 0.90. Tibia I 1.60x0.52; II 1.22x0.37; III 1.10; IV 1.60. Metatarsus I 1.12; II 0.85; III 0.92; IV 1.22. Tarsus I 0.70; II 0.55; III 0.65; IV 0.60. Leg spination: femur I, II d1-1-1, p1-2, v1 pdi; III d1-1-1, p1-1-2, r1-1; IV d1-1-1, r1di. Patella I, II, III, IV 0. Tibia I v18 (v15) (long, Fig. 68 ); II v2-2 -2; III p1, r1, v2 -0-2; IV p0, r0, v1 p-1p-2. Metatarsus I, II v2-2; III p2di, r2di, v2 di; IV p1di, r1di, v1 p-2. Abdomen dark brown, variegated, with a longitudinal median light stripe that becomes transverse stripes posteriorly; ventrally light brown. Spinnerets light brown.

Female (IBSP 59765). Total length: 10.40. Carapace length: 3.75; width: 2.55; height: 1.10. Carapace as in male. Length of the ocular quadrangle: 1.55. Width of the anterior eye row: 1.80; posterior: 1.90. Chelicera, labium, sternum and endites as in male. Palp yellow. Legs 4132, as in male. Femur I 2.02x0.95; II 1.70x0.72; III 1.70; IV 2.10. Patella I 1.25; II 1.07; III 1.00; IV 1.15. Tibia I 1.50x0.65; II 1.35x0.50; III 1.15; IV 1.87. Metatarsus I 0.95; II 0.80; III 1.10; IV 1.45. Tarsus I 0.70; II 0.60; III 0.65; IV 0.65. Leg spination: femur I d1-1-1, p1-2; II d1- 1-1, p2di; III d1-1-1 (d1-1-0), p1-2; IV d1-1-1. Patella I, II, III, IV 0. Tibia I v2 (short, like in Fig. 8 ); II v1; III p1, r1, v1 p-1p-2 (1p-0-2); IV p0, r0, v1 p-1p-2. Metatarsus I, II v2-2; III p2di, r2di, v1 p-2; IV p1di, r1di, v1 p-2. Abdomen as in male. Spinnerets as in male. Epigyne as in Figs 71–72 .

Distribution. The species seems to occur all over South America ( Fig. 101 ).

Figures

FIGURE 101. Occurrence records for the species Breda milvina, B. lubomirskii, B. bicruciata and B. modesta comb. nov. Open star indicates indetermined record of B. modesta within Guyana.

FIGURES 36 – 41. Tip of embolus. Breda modesta: 36. B. bistriata: 37. B. lubomirskii: 38. B. milvina: 39. B. akypueruna: 40. B. tristis: 41.

FIGURES 68 – 72. Breda modesta. 68 left tibia I, ventral view; 69 left male palp, ventral view; 70 ventroretrolateral view; 71 female epigyne, ventral view; 72 dorsal view, cleared. Scale bars equal 0.5 mm, except when indicated otherwise.

FIGURES 7 – 13. Breda milvina. 7 male, dorsal view; 8 left tibia I, ventral view; 9 male abdomen, ventral view; 10 left male palp, ventral view; 11 ventroretrolateral view; 12 epigyne, ventral view; 13 dorsal view, cleared. Scale bars equal 0.5 mm, except when indicated otherwise.