Neotrops poguazu, Grismado & Ramírez, 2013

Grismado, Cristian J. & Ramírez, Martín J., 2013, The New World Goblin Spiders Of The New Genus Neotrops (Araneae: Oonopidae), Part 1, Bulletin of the American Museum of Natural History 2013 (383), pp. 1-150 : 79-83

Neotrops poguazu , new species

Figures 61–63 , 69A–B ; map 4

TYPES: Male holotype from Argentina: Misiones: Depto. Oberá, Campo Ramón: Refugio de Selva y Centro de Investigaciones Antonia Ramos (CIAR), Sendero del bosque cercano a la casa, - 27.44445 ° -54.94064 °, 100 m, May 31, 2011, to June 03, 2011, Rubio G., Izquierdo M., Piacentini L., and Adilardi, R. ( MACN-Ar 28240 PBI_OON 42068 ) , one female paratype (together with one immature) with same data as the holotype (MACN-Ar 28234 PBI _ OON 42040) , and one male paratype from Misiones: Parque Nacional Iguazú: Área de la Garganta del Diablo, leaf litter, - 25.70000 °, - 54.45000 °, Jan. 19, 2005, to Jan. 20, 2005, C. Grismado, L. Lopardo, L. Piacentini, A. Quaglino, G. Rubio (MACN-Ar 17990 PBI _ OON 14910) , all deposited in MACN-Ar.

ETYMOLOGY: The specific name is a Guaraní adjective for ‘‘big hand,’’ an allusion to the enlarged palpal femur of the males of this species.

DIAGNOSIS: Males of N. poguazu differ from all others in the group by having the additional palpal sclerite bifid, with two acute projections, and the conductor relatively large, razor shaped (figs. 62B–D, 69B). Females differ by the unexpanded tip of the anterior receptacle, slightly turned to dorsal (fig. 69A), and the medially straight margin of the epigastrium, abruptly bent at the sides about 45 ° (fig. 63H).

DESCRIPTION: MALE (holotype, PBI_OON 42068). Total length 2.04. Cephalothorax: Carapace yellow, broadly oval in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to less than half their maximum width; lateral margin straight; nonmarginal pars cephalica setae dark, needlelike, in U-shaped row, with one row between the U-shaped line of setae; nonmarginal pars thoracica setae dark, needlelike; marginal setae dark, needlelike. Clypeus setae dark, needlelike. Eyes on a dark pigmented area, all subequal, ALE circular, PME oval, PLE oval; posterior eye row procurved from front; ALE separated by their radius to diameter, ALE–PLE separated by less than ALE radius, PME touching throughout most of their length, PLE–PME separated by less than PME radius. Sternum as long as wide, yellow, posterior margin not extending posteriorly of coxae IV, with an anteromedian indentation where the posteriorly elongated labium fits (fig. 61E); setae sparse, evenly scattered. Mouthparts: chelicerae, endites, and labium yellow; cheliceral setae dark, evenly scattered. Labium anterior margin indented at middle, posteriorly elongated, fitting in the sternal anterior indentation, with six or more setae on anterior margin. Endites not excavated distally, with lateral translucent, broad flaps, with a sclerotized base. Abdomen: Dorsum pale white. Book lung covers elliptical. Postepigastric scutum yellow. Spinneret scutum absent. Dorsum setae dark, needlelike. Colulus represented only by setae. Legs: Yellow; femora IV thickened, tarsi very short, around one third of metatarsi length. Leg spination: leg I: femora d1-0, pv0-0-1-1-0, tibiae v2-2-2- 2-2-0, metatarsi v2-2-2-2; leg II: femora d1-0, pv0-0-0-0-1 (very tiny), tibiae v2-2-2-2-2-0, metatarsi v2-2-2-2; leg III: femora d1-1, tibiae d1, p0-1, r0-1, v2ap, metatarsi d1subap, p1-1, r1-1, v2ap; leg IV: femora d1-1-1, tibiae d1, p1-1, r1-1, v1-2ap, metatarsi d1subap, p1-1, r1-0-1, v1-2ap. Tarsi I to IV superior claw teeth not examined in detail. Trichobothria not examined. Genitalia: Palp proximal segments pale orange; femur enlarged, two or more times as long as trochanter; cymbium pale orange, ovoid in dorsal view, not fused with bulb; bulb pale orange, more than two times as long as cymbium, slender, elongated, distal part of conductor razor shaped, flattened, with additional distal projection flattened, more sclerotized and bifid; embolus dark, gently curved, with a hooked tip and a small translucent distal membrane (figs. 62B–D, 69B).

FEMALE (paratype, PBI_OON 42040). Total length 2.34. As in male except as noted. Cephalothorax: Carapace nonmarginal pars cephalica setae with one row between the U-shaped line of setae. Eyes on a darkened pigmented area. Sternum longer than wide, precoxal triangles present, the anterior indentation where the labium fits is not so pronounced as in the male (fig. 63E); setae abundant, dark. Labium an elongated hexagon, not extending as far back as in the male. Palp spines absent. Abdomen: Postepigastric area setae dark, needlelike. Legs: Patella plus tibia I nearly as long as carapace, femora IV thickened, tarsi short. Leg spination: leg I: femora d1/0-0, pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2-2; leg II: femora d1-0, pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2-2; leg III: femora d1-1, tibiae d1, p1-1, v1-2ap, metatarsi d1, p1-1, r1-1, v1- 2ap; leg IV: femora d1-1-1, tibiae d1, p1-1, r1-1, v1-2ap, metatarsi d1, p1-1, r1-1, v1-2ap. Genitalia: Ventral view: posterior margin of epigastric scutum straight, abruptly bent laterally to both sides about 45 ° (fig. 63H). Dorsal view: anterior receptacle elongated, gradually narrowed, tip not widened, slightly dorsally curved, from which arise at least two set of muscles, one anterodorsally and other to the lateral projections of the transverse ridge. Dorsal plate covering all the structures (fig. 69A).

OTHER MATERIAL EXAMINED: Same data as the holotype, 2♀ ( MACN-Ar 28242 PBI _ OON 42089); 1 juvenile ( MACN-Ar 28234 PBI _ OON 42040); 1♀ ( MACN-Ar 28239 PBI _ OON 42069) ; Parque Nacional Iguazú : Area de saltos e islas, Feb. 08, 1995, to Feb. 15, 1995, M. Ramírez, 2♂ (MACN-AR 15352 PBI _ OON 14767) .

DISTRIBUTION: Known only from Misiones Province (map 4).

Figures

Fig. 61. Neotrops poguazu, new species, male PBI_OON 14767. A. Habitus, dorsal view. B. Same, ventral view. C. Same, lateral view. D. Carapace, dorsal view. E. Cephalothorax, ventral view. F. Same, lateral view.

Fig. 62. Neotrops poguazu, new species, male. A. Carapace, anterior view (PBI_OON 14767). B–D. Palp (PBI_OON 14910). B. Dorsal view. C. Prolateral view. D. Retrolateral view.

Fig. 63. Neotrops poguazu, new species, female PBI_OON 42040. A. Habitus, dorsal view. B. Same, ventral view. C. Same, lateral view. D. Carapace, dorsal view. E. Cephalothorax, ventral view. F. Same, lateral view. G. Habitus, anterior view. H. Epigynum, ventral view.

Fig. 69. Neotrops spp. genitalia, cleared. A–B. Neotrops poguazu, new species, C–G, N. sciosciae, new species. A. Internal female genitalia, dorsal view (PBI_OON 42069). B. Male palp, retrolateral view (PBI_OON 14767). C, G, Internal female genitalia, dorsal view, E–F, same, ventral view, C, F (PBI_OON 15080, two specimens), E (PBI_OON 14793), G (PBI_OON 14786). D. Male palp, retrolateral view (PBI_OON 15079). Abbreviations: ar, anterior receptacle; co, conductor; e, embolus; pp, posterodorsal plate; tr, transverse ridges; sc, lateral sclerites; ue, uterus externus; asterisk (*) 5 additional distal apophysis.