Sanogasta puma, RAMÍREZ, 2003

RAMÍREZ, MARTÍN J., 2003, The Spider Subfamily Amaurobioidinae (Araneae, Anyphaenidae): A Phylogenetic Revision At The Generic Level, Bulletin of the American Museum of Natural History 2003 (277), pp. 1-262 : 168-170

Sanogasta puma , new species Figures 76E , 86E–H , 87

TYPES: Female holotype and male paratype from Argentina, Buenos Aires province, Isla Talavera, 2 km E Zárate, ca. 34°06̍S, 59°02̍W, 3.XI.1996, M. Ramírez, deposited in MACN­Ar 9815.

ETYMOLOGY: The specific name is a noun in apposition taken from the felid Puma concolor, referring to the uniformly grayish brown color of the body.

DIAGNOSIS: Resembles S. tenuis in having an elongate body without pattern, but can be distinguished by having ovate, voluminous spermathecae, with pointed anterior ends, and a relatively large secondary conductor.

FEMALE (holotype): Total length 6.12. Carapace flattened, without thoracic groove, length 2.47, width 1.50, wider at leg II. Length of tibia/metatarsus: I, 1.35/1.13; II, 1.18/0.98; III, 0.83/0.82; IV, 1.55/1.22. Palpal tarsus length 0.60. Chelicerae unmodified, with two teeth on retromargin. Sternum length 1.57, width 0.82. Spines: leg I, femur d 1–1–1, p 0­ d1–2, r d1ap; tibia v 2–2–2; metatarsus v 2bas. II = I. III, femur d 1–1– 1, p and r 0­ d1­ d1; tibia v p1–2–2, p v1­ v1 + 0–1–0 bristle, r d1–1, d r1–0–1 bristles; metatarsus v 2–0–2, p 1–1, r 1–1, d 0­ (p1 bristle)­ 2. IV, femur d 1–1–1, p and r d1ap; tibia v p1–2–2, p v1­ v1–0 + 0–1–0 bristle, r 1­ d1–1, d r1–0–1 bristles; metatarsus v 2– 2–2 or 2­ p1–2, p 0­ v1­ 0­ v1, r d1–1–1, d 0­ (p1 bristle)­ 0–2 (the p1ap is a bristle). Prolateral spines on tibiae III and IV ventrally displaced. Abdomen length 3.65, width 1.47, spiracle–epigastrium 1.90, spiracle–spinnerets 0.73. Color: grayish brown uniform (fig. 76E), paler on venter, abdomen darkening posteriorly, membranous base of anterior spinnerets dark. Epigyne (figs. 86G, H, 87): anterior pouch advanced, longitudinal, without definite cavity. Copulatory ducts arising contiguously. Ducts of accessory bulbs very short, ventral. Spermathecae ovate, anteriorly acute.

MALE (paratype): Total length 5.45. Carapace with thoracic groove scarcely marked, length 2.43, width 1.60. Length of tibia/ metatarsus: I, 1.73/1.40; II, 1.35/1.13; III, 0.98/0.95; IV, 1.70/1.37. Chelicerae small, vertical. Sternum length 1.47, width 0.78. Spines as in female, except: leg I, tibia p 1­ d1­ 1­ 0, r 1­ 0­ d1­ 0, d r1–0–1 bristles; metatarsus p d1. II, tibia p 1­ d1­ 1­ 0, r 1­ 0­ d1­ 0, d r1–0–1 bristles; metatarsus p d1. III, tibia, r 1­ d1­ 0­ 1­ 0; metatarsus v 2­ p1–2. Abdomen length 2.93, width 1.33, spiracle–epigastrium 1.50, spiracle–spinnerets 0.58. Color as in female. Palp (fig. 86E, F): tibia short, width/ length 1.39, cymbium relatively large. Embolus thin, basal process small, triangular. Median apophysis very thin, short, closely associated with paramedian. Apex of paramedian apophysis short, sinuous, translucent. Secondary conductor not fused to anterior margin of tegulum; canal conspicuous, arising at base of paramedian apophysis; retrolateral portion with basal, conical projection. Anterior margin of tegulum compressed over base of secondary conductor.

NATURAL HISTORY: This species lives in the bases of large grasses, mainly pampa grasses (‘‘cortadera’’, Cortaderia selloana ), in periodically flooded areas. The elongate, flattened body with uniform color and the way the spider aligns the legs with the grass leaves make a strikingly cryptic effect.

DISTRIBUTION: Southeastern Brazil, Uruguay, and northeastern Argentina.

OTHER MATERIAL EXAMINED: BRASIL: São Paulo: Botucatu, Fazenda Nossa Senhora da Conceição , ‘‘parte aérea de Saccharum officinarum ’’, 4.II.1999, L.I. Rinaldi, B. Mendez, 13 ( UNESP), 20.IV.1999, 1♀ ( UNESP) ; Botucatu, Usina São Manoel , 2.III.1988, I. Rinaldi and L. Forti, 1♀ ( UNESP), 29.IX.1986, 13 ( UNESP) . URUGUAY: Departamento Rocha: Arroyo Sarandí del Consejo , ruta 9 km 251, 18.V.1993, M. Ramírez and F. Pérez Miles, 13 (MACNAr) . ARGENTINA: Santa Fe: El Toba, 4.IV.1968, M. Galiano, 1♀ ( MACN­Ar) . Entre Ríos: Rosario del Tala, XI.1988 , M. Ramírez, 1♀ ( MACN­Ar, photos MJR 62, 63, 269) . Buenos Aires: Same data as types, 13 4♀ 1 immature ; Delta , estación experimental INTA, 3.II.1983, M. Carbajal and M. Ramírez, 13 ( MACN­Ar) ; Delta, Paraná de Las Palmas , 17.VII.1964, M. Galiano, 2♀ ( MACN­Ar) ; Dique Luján , 26.IX.1982, P. Goloboff and M. Ramírez, 13 ( MACN­Ar) ; Mar del Tuyú , costa atlántica, 2.V.1981, M. Ramírez, 1♀ 1 immature ( MACN­Ar) ; Reserva Otamendi , 10.VI.1997, M. Ramírez, L. Compagnucci, C. Grismado, F. Uehara, 1 immature ( MACN­Ar) ; Punta Lara, Ensenada , 10.X.1984, M. Galiano, C. Scioscia and P. Goloboff, 13 ( MACN­Ar), 11.X.1985, F. Miranda and M. Ramírez, 13 ( MACN­Ar) ; Río Luján , estación FCGM, marsh with ‘‘espadaña’’, 5.X.1993, M. Ramírez and A. Pérez, 23 ( MACN­Ar) ; Zelaya , VII.1938, J.B. Daguerre, 2♀ ( MACN­Ar) .

Figures

Fig. 76. Sanogasta spp. A. S. maculatipes (Keyserling), male (Buenos Aires, Hudson, photo MJR 263). B–D, Sanogasta maculosa (Nicolet). B. Female (Choapa, Pichidangui, photo MJR 1256). C. Female (Talca, Vilches, photo MJR 770). D. Male (Talca, Vilches, photo MJR 7). E. Sanogasta puma, sp. n., female (Entre Ríos, Rosario del Tala, photo MJR 62). F. Sanogasta tenuis, sp. n., female holotype (photo MJR 1246).

Fig. 86. A–D. Sanogasta minuta (Keyserling) (Córdoba, Huerta Grande). A. Male copulatory bulb, retrolateral view. B. Same, ventral view. C. Epigyne, ventral view. D. Same, cleared. E–H. Sanogasta puma, n. sp. E. Male copulatory bulb, ventral view (Buenos Aires, Punta Lara). F. Same, retrolateral view. G. Epigyne, ventral view (holotype). H. Same, cleared. Scale bars = 0.2 mm.

Fig. 87. Sanogasta puma, n. sp., epigyne, ventral view (Buenos Aires, Paraná de Las Palmas). A. Anterior pouch. B. Copulatory openings.