Neotrops amacuro Grismado & Ramírez 2013, new species
Creators: name: Grismado, Cristian J.
name: Ramírez, Martín J.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Oonopidae
Neotrops
Neotrops amacuro

description: Neotrops amacuro, new species
Figures 103–105, 109C–D; map 11
TYPES: Male holotype from Venezuela: Delta Amacuro: Piacoa: 11 km W. Piacoa, July 14, 1987, to July 31, 1987, S., J. Peck (AMNH PBI _ OON 1693); two female paratypes from Bolívar: Tumeremo: 20 km S. Tumeremo, June 24, 1987, to July 12, 1987, S., J. Peck (AMNH PBI _ OON 1698). Deposited in AMNH.
ETYMOLOGY: This specific epithet is a noun in apposition taken from the type locality.
DIAGNOSIS: N. amacuro males are distinguished by the nearly cylindrical bulb with relatively short embolus and short, nearly triangular conductor (figs. 104B–D, 109D); females by the thin, narrow anterior receptacle (fig. 105H, 109C).
DESCRIPTION: MALE (holotype, PBI_OON 1693). Total length 1.66. Cephalothorax: Carapace pale orange, broadly oval 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 absent; marginal setae dark, needlelike. Clypeus setae dark, needle-like. Eyes: the ocular area is not well preserved, the dark area is currently depigmented, all subequal, ALE circular, PME oval, PLE circular; posterior eye row straight from front; ALE separated by more than their diameter, ALE-PLE separated by less than ALE radius, PME separated by less than their radius, PLE-PME separated by less than PME radius. Sternum as long as wide, pale orange, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV; setae sparse, evenly scattered. Mouthparts: chelicerae, endites, and labium pale orange; cheliceral setae light, evenly scattered. Labium anterior margin indented at middle. Endites distally not excavated, anteromedian tip with backwardfolded ridge, anterior margin truncated, the backward-folded ridges extend to the labium base (fig. 103E). Abdomen: Dorsum pale white. Book lung covers round. Postepigastric scutum pale orange. Spinneret scutum absent. Dorsum setae dark, needlelike. Colulus represented only by setae. Legs: Pale orange; femur IV thickened, much larger than femora I–III (fig. 103C, F). Leg spination: leg I: tibiae v2-2-2-2-2-0-0, metatarsi v2- 2-2-2; leg II: tibiae v2-2-2-2-0-0, metatarsi lost; leg III: femora d1 tibiae p1-1, r1, v1 metatarsi r1-0, v1-2ap; leg IV: femora d1-1, tibiaep1-0, r1-1, v1 metatarsi p1-1, r1-1, v1- 2ap. 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, 1 to 1.5 times as long as cymbium, nearly cilyndrical, tapering apically, distal part conductor short, translucent, nearly triangular; embolus dark, embolus relatively short, with a wide distal opening with membraneous margins (figs. 104B–D, 109C).
FEMALE (paratype, PBI_OON 1698). Total length 2.19. As in male except as noted. Cephalothorax: Eyes as in male, ocular area not well preserved, dark area depigmented. Sternum precoxal triangles present; setae dark. Labium elongated hexagon. Palp spines absent. Abdomen: Dorsum pale orange. Postepigastric area setae dark, needlelike. Legs: Patella plus tibia I nearly as long as carapace. Leg spination (legs I missing): leg II: femora d1; tibiae v2-2-2-2-2-1(vr); metatarsi v2-2-2-2; leg III: femora d1-1; tibiae r1, v2ap metatarsi p1-1, r1-1, v1; leg IV: femora d1-1; tibiae d1, p1-1, r1-1, v1ap metatarsi d1, p1-1, r1-1, v1-2ap. Genitalia: Dorsal view (fig. 109C): anterior receptacle thin, without distal expansion, muscle insertions not visible; transverse ridge sclerotized, apparently complex, composed of several plates; uterus externus narrow, posterior plate nearly triangular, surpassing dorsally the tip of the antertior receptacle.
OTHER MATERIAL EXAMINED: None.
DISTRIBUTION: Delta Amacuro and Bolívar states, Venezuela (map 11).
NOTE: The male and the females were not collected together but are matched by geographical proximity.
description: Published as part of Grismado, Cristian J. & Ramírez, Martín J., 2013, The New World Goblin Spiders Of The New Genus Neotrops (Araneae: Oonopidae), Part 1, pp. 1-150 in Bulletin of the American Museum of Natural History 2013 (383) on pages 130-136, DOI: 10.1206/819.1, http://zenodo.org/record/5404446