Breda bistriata (C.L. Koch, 1846)

Figs 37, 57–61, 103

Additional material examined. BRAZIL: São Paulo: Andradina: Usina Hidrelétrica Três Irmãos, 1m, 1f, IX- X.1990, R. Bertani, M. Costa & C. Bertim (IBSP 4862); Rosana: Porto Primavera, Usina Hidrelétrica Sérgio Motta, 4m, 11f, Equipe Biota (IBSP 59764-59766); São José do Rio Pardo: 1f, 24.IV.2001, R. Bertani & Kashimata (IBSP 59767); ARGENTINA: Tucumán: San Javier, 1m, II.1962, J. de Carlo (MACN); Santa Fé: 1m, IX.1969, M.E. Galiano (MACN); Departamento Garay: Colonia Macias: 1f, XI.1942, Viana (MACN-AR 1368); 1m, XI.1942, M.J. Viana (MACN-AR 1368); Entre Ríos: Brazo Largo: 1m, 1f, V.1939, De Castillo (MACN); Buenos Aires: Reserva Natural Otamendi: 4f, 10.VI.1997, M. Ramírez & C. Grismado (MACN); Zelaya: 1f, VIII.1938, Daguerre (MACN); 1f, VIII.1938, Daguerre (MACN); 1f, Pereyra (MACN); 1m, VIII.1938, Daguerre (MACN); 1f, M. Ramírez (MACN); Tigre: 1f, 14.X.1951, M.I. Viana (MACN); 1m, 19.VIII.1951, M.J. Viana (MACN); 1m, VIII.1938, Viana (MACN-Ar 485); Isla Martín García: 1m, 1940, Viana (MACN); Punta Lara: 1m, III.1981, M.E. Galiano (MACN); Las Palmas: 1m, VI.1982, M. Ramírez (MACN); Atucha: 1f, 8.IX.1989, M. Ramírez (MACN); Hudson: 1f, I. V.1984, M. Ramírez (MACN); Río Lujan: Estación FCGM, 1m, 5.X.1993, M. Ramírez & A. Pérez (MACN).

Diagnosis. Breda bistriata differs from the other species of the genus by having an elongate carapace and a strong tranverse stripe of yellowish scales on the distal portion of the dorsal abdomen in both sexes (Fig. 57). The male is similar to that of Breda apicalis by the tibial apophysis distally dilated in the palp (Fig. 59), but differs from this species by having the embolus tip straight (Figs 37, 58).

Description. Male (IBSP 59764). Total length: 6.25. Carapace length: 2.90; width: 1.90; height: 0.87. Carapace dark brown, with sparse long white hairs. Length of the ocular quadrangle: 1.35. Width of the anterior eye row: 1.57; posterior: 1.60. Chelicera dark brown, with four teeth on promargin and one on retromargin. Labium, sternum and endites dark brown. RvTA distally dilated and embolus tip short and relatively straight (Figs 58–59, 37). Legs 1423, I dark brown, II–IV yellow, metatarsus and tarsus I yellow, distal patella IV and tibia, metatarsus and tarsus IV dark brown laterally. Femur I 1.80x0.75; II 1.35x0.52; III 1.35; IV 1.75. Patella I 1.10; II 0.87; III 0.75; IV 0.90. Tibia I 1.40x0.57; II 1.07x0.35; III 0.90; IV 1.55. Metatarsus I 1.05; II 0.72; III 0.87; IV 1.25. Tarsus I 0.65; II 0.55; III 0.50; IV 0.57. Leg spination: femur I d1-1-0, p1-2di, v1 pdi; II d1-1-1, p1-2di; III d1- 1-1, p1-2, r1-1 (r1-2), v1 pdi (v0); IV d1-1-1, r1di. Patella I, II, III, IV 0. Tibia I v5 (v6); II v1 p-0-1p-1p (v1 p-0-2- 1p); III p1 (p0), r1-1 (r0), v1 p-0-2 (v2 di); IV p0, r0, v1 p-0-1p-2. Metatarsus I, II v2-2; III p2di, r2di, v2 di; IV p1di, r1di, v2 di. Abdomen as in female, with a dorsal brown scutum; ventrally light brown. Spinnerets dark brown.

Female (IBSP 59765). Total length: 8.50. Carapace length: 3.70; width: 2.35; height: 1.15. Carapace as in male (Fig. 57). Length of the ocular quadrangle: 1.50. Width of the anterior eye row: 1.30; posterior: 1.35. Chelicera as in male. Labium, sternum and endites as in male. Palp light brown. Legs 4132, brown; distal patella I, proximal tibia I and lateral metatarsus IV darker. Femur I 1.97x1.00; II 1.62x0.72; III 1.60; IV 2.00. Patella I 1.30; II 1.00; III 0.87; IV 1.07. Tibia I 1.45x0.67; II 1.25x0.46; III 1.05; IV 1.77. Metatarsus I 0.92; II 0.80; III 1.00; IV 1.45. Tarsus I 0.65; II 0.55; III 0.57; IV 0.60. Leg spination: femur I d1-1-0; II d1-1-1, p1di; III d1-1-1, p1di (p2di), r1di (r0); IV d1-1-0. Patella I, II, III, IV 0. Tibia I v2; II v0; III p1di, r1-1 (r1di), v0-1p-1p (v1 pdi); IV p0, r0, v1 p- 1p-2. Metatarsus I, II v2-2; III p2di (p1di), r1di, v2 di; IV p1di, r1di, v2 di. Abdomen dark brown with wide longitudinal median light stripe, two pairs of lateral projections where white scales are inserted, and with a transverse, well delimited stripe of yellow scales posteriorly (Fig. 57). Epigyne as in Figs 60-61. Spinnerets as in male.

Distribution. Northern Argentina to Southern Brazil (Fig. 103).