Neotrops tucumanus (Simon, 1907) 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 : 29-37

Neotrops tucumanus (Simon, 1907) , new combination

Figures 20–25 , 26C–D ; map 1

Oonops tucumanus Simon, 1907: 251 , f. 2.

Male holotype from Argentina: Tucumán, Silvestri col. ( MNHN AR 1496 PBI_OON 30688 ) . Deposited in MNHN. Examined.

DIAGNOSIS: Males are similar to those of N. darwini but have the embolus less curved and conductor straighter and distally pointed (fig. 26D). The female anterior receptacle is nearly cylindrical, not widened distally (fig. 26C).

NOTE: The holotype male has the embolus slightly shorter (broken?) and more curved than in the specimens collected in recent times (fig. 22D–F), but the shape of the conductor is identical, which distinguishes it from the closely related N. darwini .

DESCRIPTION: MALE (PBI_OON 14766). Total length 2.10. Cephalothorax: Carapace yellow, ovoid in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, cuticle surface with iridescence; lateral margin undulate; nonmarginal pars cephalica setae absent; nonmarginal pars thoracica setae absent; marginal setae dark, needlelike. Clypeus: many stout erect setae reaching to the ocular area, dark, stout (fig. 20F). Eyes on a dark area, all subequal, ALE circular, PME oval, PLE oval; posterior eye row straight 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, light yellow, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV; setae sparse, evenly scattered. Mouthparts: chelicerae, endites, and labium yellowish white, cheliceral setae dark, evenly scattered. Labium anterior margin indented at middle, with six or more setae on anterior margin. Endites distally not excavated, anteromedian tip unmodified, elongated, with a lamella laterally directed; with a longitudinal ectal ridge, especially conspicuous near the lateral margins of the labium (fig. 20E). Abdomen: Dorsum white. Epigastric and postepigastric area setae dark, needlelike. Postepigastric scutum yellow. Spinneret scutum absent. Dorsum setae present, dark, needlelike. Colulus represented only by setae. Legs: Yellow; femur IV not thickened, same size as femora I–III. Leg spination: leg I: femora pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2- 2-2; leg II: femora d0-1-0, pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2; leg III: femora d1-1, tibiae vap1, metatarsi vap2; leg IV: femora d1-1-1, tibiae d1-0-1, p1-1, r1-1, v0-1- 1, metatarsi vap2. Trichobothria not examined. Genitalia: Palp proximal segments pale orange; femur normal size, 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 with an anteriorly directed, razor-shaped conductor; embolus light (figs. 26D, 21B–D).

FEMALE (PBI_OON 14766). Total length 2.17. As in male except as noted. Cephalothorax: Carapace broadly oval in dorsal view (figs. 23D, 24A), cuticle surface with iridescence and elongated platelets (fig. 24G). The stout clypeal setae are not as erect as in the male. Eyes on a dark area. Sternum precoxal triangles present; setae dark. Palp spines absent (fig. 25A). Abdomen: Epigastric and postepigastric area setae dark, needlelike. Legs: Patella plus tibia I nearly as long as carapace. Leg spination: leg I: femora pv0-0- 1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2-2; leg II: femora pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2-2; leg III: femora d1-1, tibiae vap1, metatarsi vap2; leg IV: femora IV d1-1- 1, tibiae d1-0-1, p1-1, r1-1, v0-1-1, metatarsi d1, vap2. Genitalia (figs. 23H, 26C): Ventral view: dark anterior receptacle and the wide, V-shaped transverse ridges visible through cuticle. Anterior receptacle cylindrical, not widened at the tip, with accessory glands along most of its length. Posterodorsal plate transverse, oval, not completely covering anterior receptacle in dorsal view.

OTHER MATERIAL EXAMINED: ARGENTINA: Catamarca: Chumbicha , Aug. 01, 1994, M. Ramírez, 18 ( MACN-AR 15376 PBI _ OON 14781), 18 ( MACN-AR 15378 PBI _ OON 14782) ; Sierra de Ancasti, Yungas, under stones, June 22, 2011, G. Rubio, 1♀ ( MACN-Ar 27897 PBI _ OON 43219). Jujuy: Perales , Dec. 13, 1950, M. Biraben, 18 ( MLP 134 PBI _ OON 14759). Salta: Road to Posta de Yatasto , montane forest, 807 m, - 25.59096 °, - 64.95250 °, Nov. 03, 2006, G. Rubio, 1♀ ( CDA PBI _ OON 30674). Tucumán: 5 km O después de El Indio , camino a Tafí del Valle , Apr. 21, 2000, P. Goloboff and L. Lopardo, 38, 3 juvenile ( MACN-AR 15379 PBI _ OON 14783) ; Cochuna , July 02, 1995, M. Ramirez, P. Goloboff, 28, 1♀, 2 juvenile ( MACN-AR 15377 PBI _ OON 14766) ; Ruta Provincial 307, 10 km NO de El Indio, Nov. 24, 1994, M. Ramírez and P. Goloboff, 1♀ ( MACN-AR 15375 PBI _ OON 14780) ; Ruta Provincial 307, km 36, Yungas , leaf litter, Nov. 01, 2004, C. Grismado and L. Compagnucci, 1♀ ( MACN-AR 27430 PBI _ OON 43098) .

DISTRIBUTION: Yungas (montane forests) of the northwestern Argentina (Jujuy, Salta, Tucumán, and Catamarca provinces (map 1).

NATURAL HISTORY: Unknown.

Figures

Fig. 20. Neotrops tucumanus (Simon), male PBI_OON 14766. 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. 21. Neotrops tucumanus (Simon), male (A, PBI_OON 14766, B–D, PBI_OON 14783). A. Carapace, anterior view. B–D. Palp. B. Dorsal view. C. Prolateral view. D. Retrolateral view.

Fig. 22. Neotrops tucumanus (Simon), male holotype (PBI_OON 30688). A. Habitus, dorsal view. B. Same, lateral view. C. Cephalothorax, ventral view. D. Left palp, retrolateral view. E. Right palp, cleared, embolus and conductor, dorsal view. F. Same, retrolateral view.

Fig. 23. Neotrops tucumanus (Simon), female PBI_OON 14766. 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. 24. Neotrops tucumanus (Simon), female PBI_OON 15375. A. Carapace, dorsal view. B. Same, lateral view. C. Same, anterior view. D. Ocular area, dorsal view. E. Same, lateral view. F. Chelicerae, distal part, anterior view. G. Platelets on carapace.

Fig. 25. Neotrops tucumanus (Simon), female (A–D, PBI_OON 15375, E–G, PBI_OON 14783). A. Palp, retrolateral view. B. Serrula, lateral view. C. Sternum, ventral view. D. Endite, distal part, detail of setae, ventral view. E. Leg I, tarsal claws, apical view. F. Same, retrolateral view. G. Tarsus I, retrolateral view.

Fig. 26. Neotrops spp. genitalia, cleared. A–B. N. darwini, new species, C–D. N. tucumanus (Simon). A. Internal female genitalia, dorsal view (PBI_OON 14798), B. Male palp, retrolateral view (PBI_OON 14763), C. Internal female genitalia, dorsal view (PBI_OON 14766), D. Male palp, retrolateral view (PBI_OON 14759). Abbreviations: ar, anterior receptacle; co, conductor (asterisk: internal vesicle); e, embolus; pp, posterodorsal plate; tr, transverse ridges.