Breda bicruciata (Mello-Leitão, 1943), Mello-Leitao, 1943

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 : 409-414

Breda bicruciata (Mello-Leitão, 1943)

Figs 1–2 , 35 , 52–56 , 101

Additional material examined. BRAZIL: Minas Gerais: Belo Horizonte: Estação Ecológica da Universidade Federal de Minas Gerais, 1m, 1f, 27.IX.2004, R. Loyola (IBSP 59763); Rio Grande do Sul: Quaraí: 2f, 24– 28.V.1991, A.A. Lise (MCTP 431); Guaíba: Fazenda Matzenbacher, 3f, 26.VIII.1994 (MCTP 5404), 1m, 29.X.1994 (MCTP 5680), 1f, 9.I.1996 (MCTP 8227), all collected by A.A. Lise et al.; Porto Alegre: Itapuã: 2f, 26.XII.1969, P. Friedman (MCTP 3915); (Praia do Lami) 1m, V.1991, D. Picada (MCTP 413); 1m, 28.IV.1991, D. Picada (MCTP 1286); 1j, 14.VIII.1991, M.V. Kober (MCTP 1392); Viamão (Estação Agronômica Fitotécnica da UFRGS) 1f, 12.VIII.1994 (MCTP 5213), 1m, 2.XII.1994 (MCTP 5886), 1m, 7.VII.1995 (MCTP 6662), 1f, 23.VI.1995 (MCTP 6777), 1m, 24.III.1995 (MCTP 7341), 1f, 7.X.1994 (MCTP 8191), all collected by A.A. Lise et al.; 1m, 8.XII.1999, A. Braul (MCTP 11022); Osório: Praia do Curumim, 1m, 16.I.1979, C.J. Becker (MCN 8502); Pelotas: Capão do Leão, 1f, 28.VII.1999, E.N.L. Rodrigues (MCTP 11419); 1m, 15–16.III.1996, L. Moura (MCN 27488); ARGENTINA: Misiones, Parque Nacional Iguazú: 1m, XI.1987, C. Scioscia (MACN); Cataratas del Iguazú, 2m, XI.1989, C. Scioscia & M. Ramírez (MACN); 1m, 10–11.XII.1999, M. Ramírez & L. Lopardo (MACN); Santa Maria: 1m, X.1953, Schiapelli & De Carlo (MACN); Parque Provincial de Vida Silvestre: Refugio Caa-Porá, 3 km from Deseado, 1m, II.1995, M. Ramírez (MACN); Ciudad Autónoma de Buenos Aires: Saavedra: 1m, V.1936, S.R. Castillo (MACN); Buenos Aires: Tigre: Río Lujan, 1m, VII.1982, M. Ramírez (MACN); 1m, Goloboff (MACN); Punta Lara: 1m, 1f, 16.VII.1989, M. Ramírez (MACN); Inta, Delta: 1m, 21–24.IX.1978 (MACN); URUGUAY: Lavalleja: Villa Serrana: 1m, 8.IV.2004, M. Vigliou (FCEA 2291).

Diagnosis. Breda bicruciata differs from the other species of Breda by having the extremity of the RvTA apophysis curved ventrally in the male palp ( Fig. 54 ). The females are similar to those of Breda modesta ( Fig. 55 ), from which they seem to differ by having the thoracic region higher than the cephalic region in the carapace.

Description. Male (holotype). Total length: 7.05. Carapace length: 3.20; width: 2.10; height: 1.05. Carapace brown with sparse white hairs; cephalic region slightly darker ( Fig. 52 ). Length of the ocular quadrangle: 1.40. Width of the anterior eye row: 1.72; posterior: 1.70. Chelicera light brown, with four teeth on promargin and one on retromargin. Labium, sternum and endites light brown. RvTA tip curved ventrally, embolus tip short and relatively straight ( Figs 53–54 , 35 ). Legs 4132, brown, with sparse white hairs. Femur I 2.00x0.80; II 1.60x0.60; III 1.50; IV 1.97. Patella I 1.25; II 1.00; III 0.85; IV 0.97. Tibia I 1.60x0.52; II 1.30x0.40; III 1.10; IV 1.72. Metatarsus I 1.10; II 0.87; III 1.05; IV 1.30. Tarsus I 0.70; II 0.60; III 0.62; IV 0.62. Leg spination: femur I d1-1-1, p1-2, v1 pdi; II d1- 1-1, p1-2, r1di, v1 pdi; III d1-1-1, p1-2, r1-2, v1 pdi; IV d1-1-1, p1-1-1, r1di. Patella I, II, III, IV 0. Tibia I v9 (v8); II v2-2 -2; III p1-1, r1-1-1, v2 -0-2 (v1-1 p-2); IV p1, r1-1-1, v2-1 p-2. Metatarsus I, II v2-2; III p2di, r2di, v2-2 (v2 di); IV p1di, r1di, v2-2. Abdomen brown with a longitudinal median light stripe with two pairs of lateral expansions where white scales are inserted, dividing the abdomen into three areas ( Fig. 52 ); dorsally distally blackish; dorsal scutum oval, light brown; ventrally light brown with a pair of longitudinal light stripes. Spinnerets light brown.

Female (MCN 11128). Total length: 8.40. Carapace length: 3.85; width: 2.65; height: 1.17. Carapace as in male. Length of the ocular quadrangle: 1.65. Width of the anterior eye row: 1.97; posterior: 2.00. Chelicera as in male, with three or four teeth on promargin and one on retromargin. Labium, sternum and endites as in male. Palp light brown. Legs 4132, as in male. Femur I 2.02x1.02; II 1.75x0.77; III 1.72; IV 2.20. Patella I 1.35; II 1.10; III 1.00; IV 1.17. Tibia I 1.65x0.67; II 1.40x0.50; III 1.17; IV 2.00. Metatarsus I 0.95; II 0.80; III 1.15; IV 1.47. Tarsus I 0.70; II 0.66; III 0.67; IV 0.75. Spination: femur I, II d1-1-1, p2di; III d1-1-1, p1-2 (p2di), r1di; IV d1-1-1. Patella I, II, III, IV 0. Tibia I v2; II v1; III p1, r1-1 (r1), v2-1 p-2 (v1 p-1p-2); IV p0, r1, v2-1 -2. Metatarsus I, II v2-2; III p2di, r2di, v1 p-2; IV p2di, r2di (r1di), v2-2 (v1 r-2). Abdomen as in male, dark brown, with no scutum. Epigyne as in Figs 55–56 . Spinnerets as in male.

Natural history. A couple of specimens was found paralized in nests of wasps of the genus Auplopus sp. ( Pompilidae ) in the Estação Ecológica da Universidade Federal de Minas Gerais, Brazil.

Distribution. Southeastern/Southern Brazil, Uruguay and Northeastern Argentina ( 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 1 – 6. Breda bicruciata 1 – 2 dorsolateral view (1 female, 2 male) (photos: W. P. Maddison). B. apicalis 3 male, dorsal view (photo: F. U. Yamamoto). B. notata 4 male, dorsolateral view (photo: J. Zhang). B. tristis 5 female, dorsal view (photo: W. P. Maddison). B. lubomirskii 6 female feeding on cricket, dorsal view (photo: K. Swing).

FIGURES 30 – 35. Tip of embolus. Druzia flavostriata gen. et comb. nov.: 30. Breda nanica: 31. B. notata: 32. B. apicalis: 33. B. variolosa: 34. B. bicruciata: 35.

FIGURES 52 – 56. Breda bicruciata. 52 male, dorsal view; 53 left male palp, ventral view; 54 ventroretrolateral view; 55 epigyne, ventral view; 56 dorsal view, cleared. Scale bars equal 0.5 mm, except when indicated otherwise.