The New World Goblin Spiders Of The New Genus Neotrops (Araneae: Oonopidae), Part 1
Grismado, Cristian J.
Ramírez, Martín J.
Bulletin of the American Museum of Natural History
2013
2013-12-02
2013
383
1
150
46W2S
Grismado & Ramírez, 2013
Grismado & Ramírez
2013
[764,945,1210,1231]
Arachnida
Oonopidae
Neotrops
Animalia
Araneae
44
44
Arthropoda
species
yunga
sp. nov.
Figures 34–36, 40C–D; map 2
TYPES: Male holotypeand female paratype from Argentina: Jujuy Province: Parque Nacional Calilegua, Seccional Aguas Negras, leaf litter, 605 m, -23.76194 °, -64.85111 °, Dec. 06–11, 2008, C. Grismado, M. Izquierdo, F. Labarque, G. Rubio, M. Burger, P. Michalik, P. Carrera( MACN-Ar 17988 PBI_OON 14889and MACN-Ar 17720 PBI_OON 14883respectively). Deposited in MACN-Ar.
ETYMOLOGY: The specific name refers to the Yungas clouded forests of the northwestern Argentina.
DIAGNOSIS: Males share with those of N. nigromaculatusand N. rubioithe dorsal sclerotized stripe on the abdomen (figs. 34A, D, 35A), but differ by the more widened, almost translucent conductor (figs. 40D, 35B–D). Females also resemble those of N. nigromaculatus, but the anterior receptacle is basally narrow and abruptly widened distally (figs. 36H, 40C).
DESCRIPTION: MALE ( holotype, PBI_OON 14889). Total length 1.60. Cephalothorax:Carapace brown, ovoid in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width; lateral margin straight; nonmarginal pars cephalica setae dark, needlelike, scattered; nonmarginal pars thoracica setae dark, needlelike; marginal setae dark, needlelike (fig. 34A, C, D, F). Clypeus setae absent. Eyes 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 (fig. 34E) as long as wide, yellow-brown, anterior margin unmodified, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension; setae sparse, densest laterally. Mouthparts: chelicerae, endites, and labium yellow-brown, cheliceral setae dark, evenly scattered. Labium anterior margin indented at middle; with one or two setae on anterior margin. Endites distally not excavated, anterior part of each endite less sclerotized, projecting anteriorly as a membranose lobe, with distolateral pointed projections (fig. 34E). Abdomen:Dorsum pale white, without color pattern, with an anterodorsal brown sclerotized stripe, reaching around one third of its length; surface smooth (figs. 34A, C, 35A). Postepigastric scutum yellow-brown. Spinneret scutum absent. Dorsum setae dark, needlelike. Colulus represented only by setae. Spinnerets: ALS: cylindrical, pale; PMS: pale; PLS: pale, the longest. Legs:Yellowbrown; 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 pv0-0-1-0, tibiae v2-2-2-2- 2-0, metatarsi v2-2-2; leg III: femora d1-1-0, tibiae p1-0-1, v0-0-2; leg IV: femora d1-1-0, tibiae r1-0-0, v0-1-1ap, metatarsi d0-0-1, p0- 0-1, r1-0-1, v1-2ap. Trichobothria not examined. Genitalia(figs. 35B–D, 40D): Palp proximal segments orange-brown; femur normal size, two or more times as long as trochanter; cymbium orange-brown, ovoid in dorsal view, not fused with bulb; bulb orangebrown, 1 to 1.5 times as long as cymbium, stout, tapering apically, distal prolateral conductor translucent, lamellar, widened distally, touching the darkened embolus. Fig. 35. Neotrops yunga, new species, A,male PBI_OON 14765, B–D,male PBI_OON 14889). A.Carapace, anterior view. B–D.Palp. B.Dorsal view. C.Prolateral view. D.Retrolateral view. Fig. 36. Neotrops yunga, new species, female PBI_OON 14883. 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.Same, anterior view. H.Epigynum, ventral view. FEMALE ( paratype, PBI_OON 14883). Total length 1.84. As in male except as noted. Cephalothorax:Carapace yellowbrown (fig. 36D), broadly oval in dorsal view; nonmarginal pars cephalica setae dark, needlelike. Clypeus setae, dark, needlelike, two long setae forwardly directed. Sternum: precoxal triangles present; setae dark. Labium elongated hexagon; with six or more setae on anterior margin. Palp spines absent. Abdomen:Dorsum lacks the anterodorsal brown sclerotized stripe of the male (fig. 36A). Postepigastric area setae dark, needlelike. Spinnerets: ALS: cylindrical, pale, longest; PMS: pale; PLS: pale, conical. Legs:Patella plus tibia I nearly as long as carapace. Leg spination: leg I: femora d0-1-0, pv0-0-1- 1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2; leg II: femora d0-1-0, p0-0-1-1-0, tibiae v2-2-2-2- 2-0, metatarsi v2-2-2; leg III: femora d1-1, tibiae p1-1, r1-1, v0-1-2ap, metatarsi p1-1, r1- 1, v1-0-2ap; leg IV: femora d1-1, tibiae p1-1- 0, r0-0-1, v0-1-1ap, metatarsi d0-0-1-1, r0-1- 0, v0-0-1ap. Genitalia(figs. 36H, 40C): Anterior receptacle visible through cuticle in ventral view. Dorsal view: anterior receptacle with a thin, long stalk and abruptly widened anterior tip. Accessory glands present on base and stalk. Posterodorsal plate nearly circular, large, covering dorsally the anterior receptacle.
OTHER MATERIAL EXAMINED: ARGENTINA: Jujuy:same data as the types, 1♀( MACN-AR 17725 PBI_ OON14885); same locality, 1100 m, Oct. 05, 1997, to Oct. 07, 1997, Ramírezand Compagnucci, 18 ( MACN-AR 15374 PBI_ OON14765); 850 m, -23.74277 °, -64.85361 °, Oct. 20, 1994, J. Carpenter, D. Agosti, 1♀( AMNH PBI_ OON1863); Salta: Manuel Elordi, Jan. 01, 1950, M. Birabén, 18, 1♀( MLP134 PBI_ OON14934); Orán, Dec. 01, 1950, M. Birabén, 1♀( MLP134 PBI_ OON14933).
DISTRIBUTION: Jujuyand Saltaprovinces, in northwestern Argentina(map 2).
NATURAL HISTORY: The typespecimens were collected sifting leaf litter in a lowerelevation montane forest.
3886616583
2008-12-06
2008-12-11
2008-12-06
PBI
C. Grismado & M. Izquierdo & F. Labarque & G. Rubio & M. Burger & P. Michalik & P. Carrera
Argentina
605
-23.76194
Parque Nacional Calilegua
-64.85111
44
44
MACN-Ar 17988, PBI_OON 14889, MACN-Ar 17720, PBI_OON 14883
1
1
Jujuy Province
holotype
3886616457
OON 14885
MACN-AR
Jujuy
48
48
MACN-AR 17725
1
1
3886616584
OON 14765
1997-10-05
1997-10-07
1997-10-05
MACN-AR
Ramirez & Compagnucci
1100
Jujuy
48
48
MACN-AR 15374
1
3886616407
1994-10-20
AMNH
J. Carpenter & Agosti
850
48
48
1
1
3886616567
OON 14934
1950-01-01
MLP
M. Biraben
Salta
Manuel Elordi
48
48
MLP 134
1
1
3886616336
OON 14933
1950-12-01
MLP
Biraben
Algeria
Oran
48
48
MLP 134
1
1