Neotrops darwini, Grismado & Ramírez, 2013Neotrops tucumanus (Simon, 1907)

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: 8-37

publication ID

http://doi.org/ 10.1206/819.1

persistent identifier

http://treatment.plazi.org/id/03D1ED14-FF90-FF99-85B5-1E67FCAAFCDD

treatment provided by

Felipe

scientific name

Neotrops darwini Neotrops tucumanus (Simon, 1907)
status

new species

Neotrops darwini   , new species

Figures 1–19 View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig View Fig , 26A–B View Fig ; map 1

TYPES: Male holotype from Argentina: Ciudad Autónoma de Buenos Aires: Reserva Ecológica Costanera Sur, Canal de Viamonte , ‾ 34.60458 °, ‾ 58.35008 °, Sept. 15, 2008, A. Mamani, P. Turienzo ( MACN-Ar 21925 PBI_ OON 14971 View Materials )   ; same reserve, Tessaria integrifolia   forest, ‾ 34.60444 °, ‾ 58.35000 ° Apr. 13, 2009, A. Mamani, L. Zapata, 1 female paratype ( MACN-Ar 21604 PBI_ OON 14957 View Materials ), same locality, Oct. 27, 2008, A. Mamani, 1 male paratype ( MACN-Ar 23585 PBI_ OON 15010 View Materials ), 1 male and 2 female paratypes ( MACN-Ar 26077 PBI_ OON 30641 View Materials ), all deposited in MACN-Ar   .

ETYMOLOGY: This specific epithet is a patronym in honor of Charles Darwin (1809– 1882), in commemoration of the recent 150th anniversary of the publication of On the Origin of Species and the 200th anniversary of his birth. A substantial and fruitful part of Darwin’s expedition took place in Argentina.

DIAGNOSIS: N. darwini   males are very similar to those of N. tucumanus   by the elongated bulb, but differ by the embolus being more strongly curved, and the conductor slightly bent upward at the apex and distally widened (fig. 26B). Females also resemble to those of N. tucumanus   but the anterior receptacle is distally widened (fig. 26A).

DESCRIPTION: MALE (holotype, PBI_ OON 14971 View Materials ).Total length 1.74. Cephalothorax: Carapace pale orange, 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 small platelets (as in fig. 3A), iridescent under light microscope; lateral margin undulate; nonmarginal pars cephalica setae absent; nonmarginal pars thoracica setae dark, needlelike; marginal setae dark, needlelike. Clypeus setae present, dark, stout, many stout erect setae reaching the ocular area. Eyes on a dark area, ALE largest, circular, PME oval, PLE oval; posterior eye row almost straight from front and recurved from above; ALE separated by more than their diameter, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius (fig. 11C). Sternum longer than wide, yellow, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV; setae sparse, evenly scattered (fig. 11B). Mouthparts: chelicerae, endites, and labium yellow, cheliceral setae light, evenly scattered. Labium anterior margin indented at middle, with six or more setae. Endites distally not excavated, with a lateral expansion, membranous, with scalelike micosculpture, with a bunch of modified setae directed inward (fig. 12B). Abdomen: Dorsum white. Epigastric and postepigastric area with dark, needlelike setae. Postepigastric scutum yellow. Spinneret scutum absent. Dorsum with dark, needlelike setae. Colulus represented only by setae. Spinnerets (fig. 13C–F): ALS: one major ampullate gland spigot and three piriform ones; PMS: with three spigots; PLS: with four spigots. Legs: Yellow; femur IV not thickened, same size as femora I–III, tibia IV with specialized hairs on ventral apex (fig. 12H). Leg spination: leg I: femora d1-1, pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2- 2-2; leg II: femora d1-1, pv0-0-0-0-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2, leg III: femora d1-1, tibiae d1, p1-1, v1ap, metatarsi p1-1, v1- 1ap; leg IV: femora d1-1-1, tibiae d1, p1-1, r1- 1, v1ap, metatarsi d1-0-1, p1-1, r1-1, v1-1ap. Tarsal organ (only those examined under SEM are reported): I with three sensilla, IV and palp, both with two sensilla visible (fig. 14E–G). Genitalia: Palp (figs. 15, 17B– D, 20B): 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 a forward-directed conductor, slightly curved apically, a flattened tip, and a narrow basal opening on its prolateral side (fig. 15C–F), probably for discharging the internal vesicle of the conductor. Embolus light; strongly curved, with a flattened opening (fig. 15F).

FEMALE (paratype, PBI_ OON 14957 View Materials ). Total length 2.10. As in male except as noted. Cephalothorax: Carapace broadly oval in dorsal view, cuticle surface with small platalets (fig. 3A) and with iridescence under light microscope. Stout clypeal setae not as erect as in male. Eyes: ALE, PME subequal, larger than PLE; ALE separated by their radius to diameter (fig. 1C). Abdomen: Epigastric and postepigastric area setae dark, needlelike. Spinnerets (fig. 4A–D): ALS: with one major ampullate gland spigot and four piriform ones; PMS: with 10 spigots; PLS: with 14 spigots. Legs: Patella plus tibia I nearly as long as carapace, tibiae III and IV with specialized setae ventroapically (fig. 6A– B). Leg spination (fig. 5A, C, D): leg I: femora d1-1, pv0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2-2; leg II: femora d1-1, 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, r1, v2ap, metatarsi p1-1, v1-2ap; leg IV: femora d1-1-1, tibiae d1, p1-1, r1-1, v1-2ap, metatarsi d1-0-1, p1-1, v0-1-1-2ap. Tarsus I superior claws with four teeth on lateral surface of proclaw. Tarsal organ legs I–II with three sensilla, III–IV and palp with two sensilla visible (fig. 9B–F). Genitalia: Ventral view: anterior receptacle with rounded tip, visible through cuticle (fig. 18H). Dorsal view: anterior receptacle gradually widened anteriorly, with accessory glands along its base (fig. 10B, F). Posterior plate nearly oval (fig. 10A, C, E), transversal, not covering totally the anterior receptacle in dorsal view.

OTHER MATERIAL EXAMINED: ARGEN- TINA: Chaco: 100 km (the label says 1000!) NW Resistencia, Chaco NP, Dec. 12, 1990, to Dec. 17, 1990, S. J. Peck, 18 (AMNH PBI_OON 1862). Corrientes: Capital: Bella Vista, Dec. 22, 2005, Ávalos and Rubio G.,

18 (CARTROUNNE PBI_ OON 15029 View Materials ). Entre Ríos: Departamento Colón: Parque Nacional El Palmar: ‾ 31.86534 ° ‾ 58.23745 °, stones, in grassland with palms and low forest, 22 m, Aug. 06, 2011, to Aug. 08, 2011, Ramírez et al., MACN-Ar, 18 ( MACN-Ar 27994 PBI_ OON 42107 View Materials ), 28 ( MACN-Ar 27996 PBI_ OON 42120 View Materials )   ; same collectors, Arroyo El Palmar, ‾ 31.893078 ° ‾ 58.238468 °, stones and grassland with palms and riparian forest   ; 10 m, Aug. 07, 2011, 18 ( MACN-Ar 28161 PBI_ OON 42004 View Materials )   ; same collectors, ‾ 31.893078 ° ‾ 58.238468 °, stones and grassland with palms and riparian forest, 10 m, Aug. 07, 2011, 1♀ ( MACN-Ar 27987 PBI_ OON 42119 View Materials )   ; same collectors, ‾ 31.88461 ° ‾ 58.23927 °, flooded grassland, in Panicum prionitis   , 24 m, Aug. 07, 2011, 18, 1 juvenile ( MACN-Ar 28162 PBI_ OON 42007 View Materials )   ; same collectors, ‾ 31.86539 ° ‾ 58.24008 ° (flood- ed grassland, in grassy tussocks and Cortaderia   ), 28 m, Aug. 07, 2011, to Aug. 08, 2011,

1♀ ( MACN-Ar 28158 PBI_ OON 42001 View Materials ), 28, 2 juvenile ( MACN-Ar 28157 PBI_ OON 42005 View Materials ), 1♀, 7 juvenile ( MACN-Ar 28010 PBI_ OON 42008 View Materials ), 1♀ ( MACN-Ar 28012 PBI_ OON 42009 View Materials ), 1♀ ( MACN-Ar 28011 PBI_ OON 42010 View Materials ), 1♀, 28 ( MACN-Ar 28013 PBI_ OON 42011 View Materials ), 6♀, 18 (MACN- Ar 28006 PBI_ OON 42012 View Materials ), 7♀ ( MACN-Ar 28007 PBI_ OON 42013 View Materials ), 68, 7 juvenile ( MACN-Ar 28007 PBI_ OON 42013 View Materials ), 1♀, 18, 3 juvenile ( MACN-Ar 28016 PBI_ OON 42014 View Materials ), 1♀ ( MACN-Ar 28009 PBI_ OON 42104 View Materials ), 18, 4♀ ( MACN-Ar 27997 PBI_ OON 42111 View Materials ), 18, 5 juvenile ( MACN-Ar 28002 PBI_ OON 42113 View Materials ), 1♀ ( MACN-Ar 28002 PBI_ OON 42113 View Materials ), 18 ( MACN-Ar 28015 PBI_ OON 42115 View Materials ), 18 ( MACN-Ar 28014 PBI_ OON 42123 View Materials )   ; same collectors, ‾ 31.88484 ° ‾ 58.23930 °, grassland close to marsh, in grassy tussock, 25 m, Aug. 07, 2011, 2♀ ( MACN-Ar 28160 PBI_ OON 42002 View Materials ), 18, 1♀, 1juvenile ( MACN-Ar 28159 PBI_ OON 42006 View Materials ), 1♀, 18   ; 2 juvenile ( MACN-Ar 27999 PBI_ OON 42099 View Materials ), 18, 1♀, 1 juvenile ( MACN-Ar 27988 PBI_ OON 42110 View Materials )   ; same collectors, Sector Sur , ‾ 31.88768 ° ‾ 58.31186 °, grass- land and low forest with palms, 30 m, Aug. 07, 2011, 28, 1♀ ( MACN-Ar 28008 PBI_ OON 42116 View Materials ), 1♀ ( MACN-Ar 28000 PBI_ OON 42118 View Materials )   ; Dept. Uruguay: Ruta Nac. 14, 7 km E Concepción del Uruguay, ‾ 32.483128 ° ‾ 58.308484, 26 m, Aug. 08, 2011, Ramírez et al., MACN-Ar, 18 ( MACN-Ar 28018 PBI_ OON 42102 View Materials ). Ciudad Autónoma de Buenos Aires: Reserva Ecológica Costanera Sur, ‾ 34.59638 °, ‾ 58.36000 °, Mar. 30, 2009, A. Mamani, P. Turienzo, 18, 2♀ ( MACN-AR 20507 PBI_ OON 14940 View Materials ), Apr. 13, 2009, L. Zapata, A. Mamani, 1♀ ( MACN-AR 20506 PBI_OON  

14941), Sept. 29, 2008, P. Turienzo, A. Mamani, 18 (MACN-AR 21603 PBI_ OON 14956 View Materials ), Feb. 16, 2009, A. Mamani, P. Turienzo, 18 (MACN-AR 21926 PBI_ OON 14972 View Materials ), Mar. 16, 2009, A. Mamani, P. Turienzo, 18 (MACN-AR 21928 PBI_ OON 14973 View Materials ), Apr. 13, 2009, A. Mamani, L. Zapata, 1♀ (MACN-AR 22172 PBI_ OON 14978 View Materials ), Feb. 16, 2009, A. Mamani, P. Turienzo, 18 (MACN-AR 22175 PBI_ OON 14977 View Materials ), Sept. 26, 2008, P. Turienzo, A. Mamani, 18 (MACN-AR 21923 PBI_ OON 14970 View Materials ), Mar. 30, 2009, A. Mamani, P. Turienzo, 1♀ (MACN-AR 22414 PBI_ OON 14987 View Materials ), Oct. 13, 2008, P. Turienzo, 1♀ (MACN-AR 22413 PBI_ OON 14988 View Materials ), Oct. 27, 2008, A. Mamani, 1♀ (MACN-AR 23121 PBI_ OON 14994 View Materials ), Jan. 19, 2009, A. Mamani, P. Turienzo, 1♀ (MACN-AR 23122 PBI_ OON 14996 View Materials ), Nov. 10, 2008, A. Mamani, P. Turienzo, 28 (MACN-AR 24297 PBI_ OON 15012 View Materials ), Sept. 29, 2008, P. Turienzo, A. Mamani, 18 (MACN-AR 21927 PBI_ OON 14974 View Materials ); same locality, Tessaria integrifolia   forest, ‾ 34.60444 °, ‾ 58.35000 °, Sept. 29, 2008, P. Turienzo, A. Mamani, 5♀ (MACN-AR 21602 PBI_ OON 14955 View Materials ), Feb. 16, 2009, A. Mamani, P. Turienzo, 18 (MACN-AR 21924 PBI_ OON 14969 View Materials ), Mar. 30, 2009, A. Mamani, P. Turienzo, 1♀ (MACN-AR 22173 PBI_ OON 14975 View Materials ), Apr. 27, 2009, P. Turienzo, L. Zapata, 1♀ (MACN-AR 22174 PBI_ OON 14976 View Materials ), Nov. 10, 2008, A. Mamani, P. Turienzo, 1♀ (MACN-AR 23120 PBI_ OON 14997 View Materials ), Oct. 27, 2008, A. Mamani, 1♀ (MACN-AR 23583 PBI_ OON 15007 View Materials ), Nov. 24, 2008, A. Mamani, L. Zapata, 18 (MACN-AR 23584 PBI_ OON 15008 View Materials ), Oct. 27, 2008, A. Mamani, 1♀ (MACN-AR 24302 PBI_ OON 15011 View Materials ); same locality, Área Fuego, Parcela Norte, Apr. 08, 2011, H. Sirolli and L. Zapata, 18 (MACN-AR 27554 PBI_ OON 43198 View Materials ); same locality, Camino de los sauces: mirador al Canal Sur, 34.61694 °, 58.34722 °, Oct. 24, 2011, L. Zapata, G. Rubio, M. Izquierdo, M. Guala, y C. Grismado, 2♀ (MACN-Ar 28195 PBI_ OON 42021 View Materials ), 18 (MACN-Ar 28190 PBI_ OON 42025 View Materials ); same locality, Canal de Viamonte, forest, ‾ 34.60458 °, ‾ 58.35008 °, May 01, 2008, to Apr. 01, 2009, Lorena Zapata, 1♀ (MACN- AR 25816 PBI_ OON 30549 View Materials ), Sept. 29, 2008, P. Turienzo, A. Mamani, 3♀ (MACN-AR 25817 PBI_ OON 30550 View Materials ), Nov. 24, 2008, forest soil and litter, A. Mamani, L. Zapata, 1♀ (MACN-AR 25961 PBI_ OON 30687 View Materials ). Buenos Aires: Berazategui: Hudson, F.C.G.R., May 01, 1984, M. Ramírez, 1♀ (MACN-AR 15371 PBI_ OON 14799 View Materials ); 18 (MACN-AR 15371 PBI_ OON 14799 View Materials ). Campana: Reserva Natural Otamendi, grassy field, in ‘‘dipsacal,’’ Feb. 07, 1992, Fuentes, B. and Di Iorio, O., 18 (MACN-AR 27485 PBI_ OON 43192 View Materials ); Reserva Natural Otamendi, Entrance to ‘‘Sendero de la laguna,’’ grassland, 21 m, ‾ 34.22611 °, ‾ 58.90111 °, May 19, 2007, to June 09, 2007, C. Grismado, I. Crudele, S. Trivero, and N. Olejnik, 18 (MACN-AR 12632 PBI_ OON 14925 View Materials ). San Pedro: Reserva Municipal Vuelta de Obligado, barranca del Paraná, Grassland, ‾ 33.59722 °, ‾ 59.80944 °, Oct. 11, 2009, N. López, C. Grismado, N. Olejnik and I. Crudele coll, 1♀ (MACN- AR 24303 PBI_ OON 15013 View Materials ). Tigre: Tigre, Oct. 01, 1953, Viana, 1♀, 18, 3 juvenile (MACN-AR 15366 PBI_ OON 14763 View Materials ); Tigre, Aug. 01, 1956, Viana, 18 (MACN-AR 15368 PBI_ OON 14803 View Materials ). Zárate: Atucha, May 10, 1987, M. Ramírez, 1♀ (MACN-AR 15367 PBI_ OON 14798 View Materials ). URUGUAY: Río Negro: Fray Bentos, ‾ 33.11305 °, ‾ 58.25138 °, Dec. 20, 2007, no data of collector, 38, 3♀, 2 Juveniles (FCE 2315 PBI_ OON 42194 View Materials ).

DISTRIBUTION: Argentina, in Chaco, Corrientes, Entre Ríos, and northeast of Buenos Aires province (including Buenos Aires city), near the Paraná and La Plata rivers, and Uruguay (Río Negro). Probably also in intermediate localities along the Paraná coast (map 1).

NATURAL HISTORY: The largest series was collected by pitfall traps at the type locality, an urban ecological reserve near the Río de la Plata, in Buenos Aires city. These specimens were found in forests of Tessaria integrifolia   ( Asteraceae   , ‘‘aliso de río’’), but other individuals were also collected in highly disturbed neighboring areas, or in the bases of Cortaderia selloana   (‘‘pampas grass’’) and other Poaceae   . At El Palmar, many individuals were caught on the base of grasses ( Cortaderia   and others), especially in swampy areas with diverse vegetation (both in grass-

land and forest formations). In Vuelta de Obligado, a female was collected during the night in the bank of the Paraná river, close to the entrance of a nest of the tiny ant Wasmannia auropunctata   , suggesting that the spider could prey on them. Interestingly, another Argentine oonopid (the hard-bodied Gamasomorpha wasmanniae Mello-Leitão   ) was collected in association with this ant species under stones, in Córdoba Province ( Birabén, 1954). Some specimens from the type locality and from Hudson are hosts of parasitoid acrocerid larvae (Shaun L. Winterton, identification from photographs). This could be the first report of the parasitoid relationship between acrocerids and oonopids. Most of the larvae were found inside the anterior part of the abdomen, near the booklungs (fig. 19B), although a few specimens are clearly visible in the cephalothorax (fig. 19C).

Neotrops tucumanus (Simon, 1907)   , new combination

Figures 20–25 View Fig View Fig View Fig View Fig View Fig View Fig , 26C–D View Fig ; map 1

Oonops tucumanus Simon, 1907: 251   , f. 2. Male holotype from Argentina: Tucumán, Silvestri col. (MNHN AR 1496 PBI_ OON 30688 View Materials ). 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 View Materials ). 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 View Materials ). 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: ARGEN- TINA: Catamarca: Chumbicha , Aug. 01, 1994, M. Ramírez, 18 ( MACN-AR 15376 PBI_ OON 14781 View Materials ), 18 ( MACN-AR 15378 PBI_ OON 14782 View Materials )   ; Sierra de Ancasti, Yungas, under stones, June 22, 2011, G. Rubio, 1♀ ( MACN-Ar 27897 PBI_ OON 43219 View Materials ). Jujuy: Perales , Dec. 13, 1950, M. Biraben, 18 ( MLP 134 View Materials PBI_ OON 14759 View Materials ). Salta: Road to Posta de Yatasto , montane forest, 807 m, ‾ 25.59096 °, ‾ 64.95250 °, Nov. 03, 2006, G. Rubio, 1♀ ( CDA PBI_ OON 30674 View Materials ). 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 View Materials )   ; Cochuna , July 02, 1995, M. Ramirez, P. Golob- off, 28, 1♀, 2 juvenile ( MACN-AR 15377 PBI_ OON 14766 View Materials )   ; Ruta Provincial 307, 10 km NO de El Indio, Nov. 24, 1994, M. Ramírez and P. Goloboff, 1♀ ( MACN-AR 15375 PBI_ OON 14780 View Materials )   ; Ruta Provincial 307, km 36, Yungas , leaf litter, Nov. 01, 2004, C. Grismado and L. Compagnucci, 1♀ ( MACN-AR 27430 PBI_ OON 43098 View Materials )   .

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

NATURAL HISTORY: Unknown.

Neotrops tucumanus (Simon, 1907)   , new combination

Figures 20–25 View Fig View Fig View Fig View Fig View Fig View Fig , 26C–D View Fig ; map 1

Oonops tucumanus Simon, 1907: 251   , f. 2. Male holotype from Argentina: Tucumán, Silvestri col. (MNHN AR 1496 PBI_ OON 30688 View Materials ). 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 View Materials ). 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 View Materials ). 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: ARGEN- TINA: Catamarca: Chumbicha , Aug. 01, 1994, M. Ramírez, 18 ( MACN-AR 15376 PBI_ OON 14781 View Materials ), 18 ( MACN-AR 15378 PBI_ OON 14782 View Materials )   ; Sierra de Ancasti, Yungas, under stones, June 22, 2011, G. Rubio, 1♀ ( MACN-Ar 27897 PBI_ OON 43219 View Materials ). Jujuy: Perales , Dec. 13, 1950, M. Biraben, 18 ( MLP 134 View Materials PBI_ OON 14759 View Materials ). Salta: Road to Posta de Yatasto , montane forest, 807 m, ‾ 25.59096 °, ‾ 64.95250 °, Nov. 03, 2006, G. Rubio, 1♀ ( CDA PBI_ OON 30674 View Materials ). 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 View Materials )   ; Cochuna , July 02, 1995, M. Ramirez, P. Golob- off, 28, 1♀, 2 juvenile ( MACN-AR 15377 PBI_ OON 14766 View Materials )   ; Ruta Provincial 307, 10 km NO de El Indio, Nov. 24, 1994, M. Ramírez and P. Goloboff, 1♀ ( MACN-AR 15375 PBI_ OON 14780 View Materials )   ; Ruta Provincial 307, km 36, Yungas , leaf litter, Nov. 01, 2004, C. Grismado and L. Compagnucci, 1♀ ( MACN-AR 27430 PBI_ OON 43098 View Materials )   .

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

NATURAL HISTORY: Unknown.

CDA

Canadian Department of Agriculture

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Neotrops

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Neotrops

Loc

Neotrops darwini Neotrops tucumanus (Simon, 1907)

Grismado, Cristian J. & Ramírez, Martín J. 2013
2013
Loc

Oonops tucumanus

Simon 1907: 251
1907