Neotrops lorenae, 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 : 60-65

Neotrops lorenae , new species

Figures 46–49 , 53C–D ; map 3

TYPES: Male holotype from Argentina: Buenos Aires Province: La Plata: Paseo del Bosque , under bark of Eucalyptus sp. , June 14, 2011, J. Barneche ( MACN-Ar 27894 PBI _ OON 43212 ). Same data, 1♂ and 2♀ paratypes ( MACN-Ar 27898 PBI _ OON 43211); deposited in MACN. One ♂ and one ♀ paratypes ( MLP PBI _ OON 43210) ; deposited in MLP.

ETYMOLOGY: The specific epithet is a patronym in honor of Lorena Zapata (MACN and Reserva Ecológica Costanera Sur, Buenos Aires), co-collector of this species in Entre Ríos, and of many other oonopids in Argentina.

DIAGNOSIS: Males resemble N. pombero , but differ in having a more concave bulb dorsal outline in lateral view, with a more globose basal part, a longer, more curved embolus, and a conductor with a ventral laminar projection more proximal (figs. 47B– D, 53D). Females also resemble to those of N. pombero by the Y-shaped anterior receptacle, but differ in having a basal sinuous portion, which forms a dorsal arc, from the ventrally positioned ventral part, and appear as two distinct parts in dorsal view (fig. 53C).

DESCRIPTION: MALE (PBI_OON 43213). Total length 1.74. Cephalothorax: Carapace orange, broadly oval in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to less than half the maximum width; lateral margin straight; nonmarginal pars cephalica setae dark, needlelike, scattered; nonmarginal pars thoracica setae dark, needlelike; marginal setae dark, needlelike. Clypeus setae dark, needlelike. Eyes all subequal, ALE circular, PME oval, PLE oval; posterior eye row recurved 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 (fig. 46E), pale orange, anterior margin unmodified, setae sparse, evenly scattered. Mouthparts: chelicerae, endites, and labium pale orange, cheliceral setae dark, evenly scattered. Labium anterior margin indented at middle, with six or more setae. Endites distally not excavated, with a longitudinal sclerotized ridge, anterior and ectal parts of each endite lightly sclerotized (fig. 46E). Abdomen: Dorsum pale white. Book lung covers ovoid. Postepigastric scutum pale orange. Spinneret scutum absent. Dorsum setae dark, needlelike. Colulus represented only by setae. Legs: Pale orange; femur IV not thickened, same size as femora I–III. Leg spination: leg I: femora d1-0-0, pv 0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2-2; leg II: femora d1-0-0, pv 0-0-1-1-0, tibiae v2-2-2-2- 2-0, metatarsi v2-2-2; leg III: femora d1-1, tibiae d1, p1-1, r0-1, metatarsi p1-1, r0-1; leg IV: femora d1-0-1, tibiae d1, r1-1, metatarsi d1subap, p1-1, r1-1-1. 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 globose, whitish, 1 to 1.5 times as long as cymbium, stout, tapering apically, distal part distally truncated. Conductor with an acute forward-directed process and a ventral expanded lamina (as in fig. 53D); embolus dark.

FEMALE (PBI_OON 43215). Total length 1.90. As in male except as noted. Cephalothorax: Sternum setae dark. Palp spines absent. Abdomen: Dorsum with paired gray patches under the cuticle dorsally and one longitudinal, larger, along the middle of the venter (fig. 48A–B). Postepigastric area setae dark, needlelike. Legs: Patella plus tibia I nearly as long as carapace. Leg spination: leg I: femora d1-0, pv 0-0-1-1-0, tibiae v2-2-2-2- 2-0, metatarsi v2-2-2; leg II: femora d1-0, pv 0-0-1-1-0, tibiae v2-2-2-2-2-0, metatarsi v2-2- 2; leg III: femora d1-1, tibiae p1-1, metatarsi p1-1, v1ap; leg IV: femora d1-0-1, tibiae p1-0- 1, r1-0-1, metatarsi p1-1, r1-0-1, v2ap. Genitalia: Ventral view: anterior receptacle with two short, anterolateral projections (as a ‘‘V’’) with muscle attachments, its basal part curving outward (ventrally), appears to be of two separate parts in dorsal view (fig. 53C), the ends of the basal part visible through cuticle as a rounded darker area (fig. 48H). The accessory glands seem to be restricted to the base (fig. 53C), and the V-shaped tip visible through the cuticle (fig. 48H). Posterior plate large, nearly circular, covering dorsally the entire anterior receptacle.

OTHER MATERIAL EXAMINED: ARGENTINA: Buenos Aires : Same data as the types, 1♂ ( MLP PBI _ OON 43209), 1♂ ( MACN-Ar 27900 PBI _ OON 43213), 1♂, 2♀ (MACN-Ar 27895 PBI _ OON 43214), 3♀ ( MACN-Ar 27899 PBI _ OON 43215), 1♀ ( MACN-Ar 28372 PBI _ OON 43217), 1♂ ( MACN-Ar 28371 PBI _ OON 43218) ; Escobar : Paraná de Las Palmas, under bark, Mar. 24, 2011, Porta, A., 1♀, 1juvenile ( MACN-AR 27483 PBI _ OON 43196) ; Gobernador Castro , Mar. 19, 1983, Zanetic and Goloboff, 1♂ ( MACN-AR 15372 PBI _ OON 14804), 2♀ ( MACN-AR 15372 PBI _ OON 14804) ; Tigre : Dique Luján , Sept. 26, 1982, Goloboff and Ramírez, 4♂, 6♀ ( MACN-AR 15364 PBI _ OON 14764), Río Luján y Guayracá, June 01, 1982, M. Ramírez, 1♂, 5♀ (MACN-AR 27478 PBI _ OON 43187), Isla Martín García, May 25, 1990, M. Ramírez, 1♂ ( MACN-AR 15369 PBI _ OON 14800). Entre Ríos: Dept. Colón: P. Nac. El Palmar, Arroyo Los Loros, - 31.861746 ° - 58.20934 °, 10 m, Aug. 07, 2011, Ramírez et al., MACN-Ar, 1♀ (MACN-Ar 28004 PBI _ OON 42100), 1♀ (MACN-Ar 28165 PBI _ OON 42121), 1♂ (MACN-Ar 28005 PBI _ OON 42124) . URUGUAY: Paysandú: 5 km from Paysandú city, 32.28861 °, 58.03166 °, Sept. 04, 2011, A. Laborda, 2♂, 3♀, 1 juvenile ( FCE 2310 PBI _ OON 42195).

DISTRIBUTION: Known only from northeastern Buenos Aires and eastern Entre Ríos, Argentina, and Paysandú, Uruguay (map 3).

NATURAL HISTORY: This species was usually collected under bark of trees, both native and exotic species. The type series was found under Eucalyptus bark, where they build silken retreats (fig. 49). As in N. darwini , some specimens are hosts of parasitoid acrocerid larvae.

Figures

Fig. 46. Neotrops lorenae, new species, A–E, male PBI_OON 43213, F, male PBI_OON 14764. 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. 47. Neotrops lorenae, new species, male PBI_OON 43213. A. Habitus, anterior view. B–D. Palp. B. Dorsal view. C. Prolateral view. D. Retrolateral view.

Fig. 48. Neotrops lorenae, new species, A–G, female PBI_OON 43215, H, female PBI_OON 14764. 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. 49. Neotrops lorenae, new species, living specimens. A. Female, in her silken retreat, under Eucalyptus bark, in the type locality (Photo: Jorge Barneche). B. Male.

Fig. 53. Neotrops spp. genitalia, cleared. A–B. Neotrops pombero, new species. C–D, N. lorenae, new species. E–F, N. avalosi, new species. A. Internal female genitalia, dorsal view (PBI_OON 14768). B. Male palp, retrolateral view (PBI_OON 14769). C. Internal female genitalia, dorsal view (PBI_OON 14764). D. Male palp, retrolateral view (PBI_OON 14764). E. Internal female genitalia, dorsal view (PBI_OON 30670). F. Male palp, retrolateral view (PBI_OON 30668).