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OONOPIDAE SPECIES DESCRIPTION
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Neotrops amacuro       Get publication



            Male (PBI_OON 1693). Total length 1.66. CEPHALOTHORAX: Carapace pale orange, without any pattern, 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, with rounded posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, anterolateral corners without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, smooth, without denticles; plumose setae near posterior margin of pars thoracica absent; non-marginal pars cephalica setae dark, needle-like, present, scattered; non-marginal pars thoracica setae absent; marginal setae dark, needle-like. Clypeus margin unmodified, curved downwards in front view, vertical in lateral view, low, ALE separated from edge of carapace by less than their radius, median projection absent; setae present, dark, needle-like. Chilum absent. Eyes six, well developed, the ocular area is not well preserved, the dark area is currently depigmented, all subequal, ALE circular, PME oval, PLE circular; posterior eye row recurved from above, 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, uniform, not fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture absent, sickle-shaped structures absent, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV, anterior corner unmodified, lateral margin without infra-coxal grooves, distance between coxae approximately equal, extensions of pre-coxal triangles present, lateral margins unmodified, without posterior hump; setae sparse, dark, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, anterior face unmodified; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon inner margin with pairs of enlarged setae, distal region unmodified, posterior surface unmodified, promargin unmodified, inner margin unmodified. Labium elongated hexagon, not fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; with 1 or 2 setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, serrula present in single row, anteromedian tip with backwards folded ridge, same as sternum in sclerotization, anterior martgin truncated, the backward folded ridges extend to the labium base, .. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions pale white, without color pattern. Book lung covers large, round, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube short, unmodified, scuto-pedicel region unmodified, scutum absent, but abdomen not extending anterior of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent. Dorsal scutum absent. Epigastric scutum weakly sclerotized, not surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum weakly sclerotized, pale orange, short, only around epigastric furrow, not fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Spinneret scutum absent. Dorsum setae present, dark, needle-like. Epigastric area setae uniform, dark, needle-like. Postepigastric area setae present, dark, needle-like. Dense patch of setae anterior to spinnerets absent. Colulus represented only by setae. LEGS: pale orange, without color pattern; femur IV thickened, much larger than femora I-III, patella plus tibia I near as long as carapace, tibia I unmodified. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): (leg I: tibia: v2-2-2-2-2-0-0; metatarsus: v2-2-2-2, leg II: tibia: v2-2-2-2-0-0; metatarsus: lost, leg III: femur: d1; tibia:p1-1, r1, v1 metatarsus: r1-0, v1-2ap, leg IV: femur: d1-1; tibia:p1-0, r1-1, v1 metatarsus: p1-1, r1-1, v1-2ap. ). Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria not examined. GENITALIA: Epigastric region with sperm pore not visible; furrow without omega-shaped insertions. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments pale orange; embolus dark, prolateral excavation absent, embolus relatively short, with a wide distal opening with membrtanose margins.; trochanter normal size, unmodified; femur normal size, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella basally; patella shorter than femur, not enlarged, setae unmodified; tibia trichobothria not examined; cymbium pale orange, ovoid in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, without stout setae, without distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, slender, tapering apically, distal part conductor short, traslucent, nearly triangular..
Neotrops amacuro, male habitus, dorsal view (image by XG, specimen ID: ---01693)

Neotramacumphabd01693XG.tif

Neotrops amacuro, male habitus, ventral view (image by XG, specimen ID: ---01693)

Neotramacumphabv01693XG.tif

Neotrops amacuro, male habitus, lateral view (image by XG, specimen ID: ---01693)

Neotramacumphabl01693XG.tif

Neotrops amacuro, male carapace, dorsal view (image by XG, specimen ID: ---01693)

Neotramacumpcard01693XG.tif

Neotrops amacuro, male carapace, ventral view (image by XG, specimen ID: ---01693)

Neotramacumpcarv01693XG.tif

Neotrops amacuro, male carapace, lateral view (image by XG, specimen ID: ---01693)

Neotramacumpcarl01693XG.tif

Neotrops amacuro, male carapace, anterior view (image by XG, specimen ID: ---01693)

Neotramacumpcara01693XG.tif

Neotrops amacuro, male palp, prolateral view (image by XG, specimen ID: ---01693)

Neotramacumppalp01693XG.tif

Neotrops amacuro, male palp, dorsal view (image by XG, specimen ID: ---01693)

Neotramacumppald01693XG.tif

Neotrops amacuro, male palp, retrolateral view (image by XG, specimen ID: ---01693)

Neotramacumppalr01693XG.tif

Neotrops amacuro, male bulb, retrolateral view (image by XG, specimen ID: ---01693)

Neotramacumpbulr01693XG.jpg

Neotrops amacuro, male palp, retrolateral view (image by XG, specimen ID: ---01693)

Neotramacumdpalr01693XG.tif


            Female (PBI_OON 1698). Total length 2.19. As in male except as noted. CEPHALOTHORAX: Eyes as in the male holotype, the ocular area is not well preserved, the dark area is currently depigmented. Female palp claws absent; spines absent; tarsus unmodified. ABDOMEN: dorsum soft portions pale orange. Epigastric scutum without lateral joints. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): (leg I: leg I absent, leg II: Femur: d1; tibia: v2-2-2-2-2-1(vr); metatarsus: v2-2-2-2, leg III: femur: d1-1; tibia:r1, v2ap metatarsus: p1-1, r1-1, v1, leg IV: femur: d1-1; tibia:d1, p1-1, r1-1, v1ap metatarsus: d1, p1-1, r1-1, v1-2ap. ). Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Dorsal view: anterior receptacle thin, without distal expansion and with no muscle insertions visible. Sclerotized transverse ridge apparently complex, composed by several plates. Uterus externus narrow, posterior plate nearly triangular, surpassing dorsally the tip of the antertior receptacle..
Neotrops amacuro, female habitus, dorsal view (image by XG, specimen ID: ---01698)

Neotramacufphabd01698XG.tif

Neotrops amacuro, female habitus, ventral view (image by XG, specimen ID: ---01698)

Neotramacufphabv01698XG.tif

Neotrops amacuro, female habitus, lateral view (image by XG, specimen ID: ---01698)

Neotramacufphabl01698XG.tif

Neotrops amacuro, female carapace, dorsal view (image by XG, specimen ID: ---01698)

Neotramacufpcard01698XG.tif

Neotrops amacuro, female carapace, ventral view (image by XG, specimen ID: ---01698)

Neotramacufpcarv01698XG.tif

Neotrops amacuro, female carapace, lateral view (image by XG, specimen ID: ---01698)

Neotramacufpcarl01698XG.tif

Neotrops amacuro, female carapace, anterior view (image by XG, specimen ID: ---01698)

Neotramacufpcara01698XG.tif

Neotrops amacuro, female epigynum, epigynal area, ventral view (image by XG, specimen ID: ---01698)

Neotramacufpepiv01698XG.tif

Neotrops amacuro, female internal female genitalia, dorsal view (image by XG, specimen ID: ---01698)

Neotramacufpifgd01698XG.jpg

Neotrops amacuro, female internal female genitalia, dorsal view (image by XG, specimen ID: ---01698)

Neotramacufdifgd01698XG.tif

 

DISTRIBUTION

VENEZUELA
Neotrops amacuro coordinates
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MATERIAL EXAMINED
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PBI USI Country State Division Locality Sex Type Status Elevation(m) GPS Coordinate Habitat Collection_Date Collector Inst. Code
PBI_OON 00001698  VENEZUELA  Bolivar  Tumeremo  20 km S. Tumeremo  2 Adult Female  Paratype    ;     24 Jun 1987  S., J. Peck  AMNH 
PBI_OON 00001693  VENEZUELA  Delta Amacuro  Piacoa  11 km W. Piacoa  1 Adult Male  Holotype    ;     14 Jul 1987  S., J. Peck  AMNH 


 
 
 
 
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