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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Scaphidysderina pagoreni       Get publication



            Male (PBI_OON 525). Total length 2.00. CEPHALOTHORAX: Carapace red-brown, 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, sides granulate, thorax without depressions, fovea absent, elevated portion of pars cephalica with low tubercles around midline, surrounded by U-shaped smooth area, without radiating rows of pits; lateral margin straight, rebordered, with sharply pointed denticles; plumose setae near posterior margin of pars thoracica absent; non-marginal pars cephalica setae light, needle-like, present, scattered; non-marginal pars thoracica setae light, needle-like; marginal setae light, needle-like. Clypeus margin strongly rebordered, sinuous in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection present; setae present, light, needle-like. Chilum undivided, fused to clypeus, seam present, triangular, extending distal about equal to clypeus height. Eyes six, well developed, ALE largest, ALE oval, PME squared, PLE oval; posterior eye row straight from above, 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 wider than long, orange-brown, 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, without pits, microsculpture everywhere but front, sickle-shaped structures absent, anterior margin with interrupted transverse groove, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, anterior corner unmodified, lateral margin with infra-coxal grooves and anterior and posterior openings, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins with bridges to coxae, without posterior hump, surface crenulated; setae sparse, light, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae slightly divergent, anterior face with swelling, anterior face of paturon with produced ledge, median and lateral edges of ledge forming tubercles; promargin without teeth, retromargin with one tooth; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, densest medially; paturon inner margin with pairs of enlarged setae, distal region unmodified, posterior surface unmodified, promargin with row of flattened setae, inner margin unmodified, laminate groove absent. Labium triangular, not fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; with 6 or more setae on anterior margin, subdistal portion with unmodified setae. Endites distally excavated, serrula present in single row, posteromedian part unmodified, same as sternum in sclerotization, anteromedian part with short ventral and longer dorsal projections, tip of dorsal projection directed toward ventral projection. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions white, without color pattern. Book lung covers large, ovoid, without setae, anterolateral edge unmodified. Posterior spiracles not connected by groove. Pedicel tube medium, ribbed, scuto-pedicel region unmodified, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent. Dorsal scutum strongly sclerotized, pale orange, without color pattern, covering full length of abdomen, no soft tissue visible from above, not fused to epigastric scutum, middle surface smooth, sides smooth, anterior half without projecting denticles. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, pale orange, almost semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with short 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. Interscutal membrane with setae. Colulus present, tiny, with pair of setae. Spinnerets: ALS: bisegmented; PMS: unisegmented; PLS: bisegmented. LEGS: orange-brown, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter than carapace, tibia I unmodified, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent, metatarsi III and IV weak ventral scopula absent. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-0-1; tibiae: I v4-4-1p; II v2-4-0; metatarsi: I v2-2-1p; II v2-2-0. 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 small, triangular with rounded angles, situated between anterior and posterior spiracles, rebordered; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments pale orange; embolus dark, prolateral excavation absent, originating on strong lobe of cymbium, consisting of narrow basal stalk followed by highly folded extension, dorsal and ventral flanges short, almost touching at tip; trochanter minute, 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, without prolateral row of ridges, setae unmodified; tibia trichobothria not examined; cymbium yellow, ovoid in dorsal view, completely fused with bulb, no seam visible, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb yellow, 1 to 1.5 times as long as cymbium, stout, elongated.
Scaphidysderina pagoreni, male bulb, ventral view (image by ND, specimen ID: ---00524)

Scadypagormpbulv00524ND.tif

Scaphidysderina pagoreni, male carapace, anterior view (image by ND, specimen ID: ---00524)

Scadypagormpcara00524ND.tif

Scaphidysderina pagoreni, male carapace, dorsal view (image by ND, specimen ID: ---00524)

Scadypagormpcard00524ND.tif

Scaphidysderina pagoreni, male palp, prolateral view (image by ND, specimen ID: ---00524)

Scadypagormppalp00524ND.tif

Scaphidysderina pagoreni, male palp, retrolateral view (image by ND, specimen ID: ---00524)

Scadypagormppalr00524ND.tif

Scaphidysderina pagoreni, male sternum, ventral view (image by ND, specimen ID: ---00524)

Scadypagormpstev00524ND.tif

Scaphidysderina pagoreni, male carapace, anterior view (image by ND, specimen ID: ---00525)

Scadypagormscara00525ND.tif

Scaphidysderina pagoreni, male endites, ventral view (image by ND, specimen ID: ---00525)

Scadypagormsendv00525ND.tif

Scaphidysderina pagoreni, male embolus, ventral view (image by ND, specimen ID: ---00525)

Scadypagormsembv00525ND.tif

Scaphidysderina pagoreni, male embolus, retrolateral view (image by ND, specimen ID: ---00525)

Scadypagormsembr00525ND.tif

Scaphidysderina pagoreni, male embolus, retrolateral view (image by ND, specimen ID: ---00526)

Scadypagormsembr00526ND.tif


            Female (PBI_OON 14813). Total length 2.18. As in male except as noted. CEPHALOTHORAX: Carapace elevated portion of pars cephalica with low tubercles around midline, surrounded by U-shaped smooth area. Chilum fused to clypeus, seam present, triangular, extending distal about equal to clypeus height. Sternum surface crenulated. Mouthparts: Chelicerae anterior face of paturon with produced ledge, only median edge of ledge forming tubercle; promargin with one tooth. Endites distally not excavated, anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Dorsal scutum absent. Epigastric scutum without lateral joints. Postepigastric scutum covering about 1/2 of abdominal length. Colulus tiny, with pair of setae. Spinnerets: ALS: bisegmented; PMS: unisegmented; PLS: bisegmented. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): tibiae: II v4-4-0; metatarsi: II v2-2-0. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: atrium triangular, with anterior prong extending past anterior margin of atrium.
Scaphidysderina pagoreni, female abdomen, lateral view (image by ND, specimen ID: ---00527)

Scadypagorfpabdl00527ND.tif

Scaphidysderina pagoreni, female abdomen, ventral view (image by ND, specimen ID: ---00527)

Scadypagorfpabdv00527ND.tif

Scaphidysderina pagoreni, female carapace, anterior view (image by ND, specimen ID: ---00527)

Scadypagorfpcara00527ND.tif

Scaphidysderina pagoreni, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---00527)

Scadypagorfpepiv00527ND.tif

Scaphidysderina pagoreni, female internal female genitalia, dorsal view (image by ND, specimen ID: ---00527)

Scadypagorfpifgd00527ND.tif

Scaphidysderina pagoreni, female internal female genitalia, ventral view (image by ND, specimen ID: ---00527)

Scadypagorfpifgv00527ND.tif

Scaphidysderina pagoreni, female chelicerae, anterior view (image by ND, specimen ID: ---00527)

Scadypagorfschea00527ND.tif

Scaphidysderina pagoreni, female chelicerae, posterior view (image by ND, specimen ID: ---00527)

Scadypagorfschet00527ND.tif

 

DISTRIBUTION

PERU
Scaphidysderina pagoreni coordinates
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MATERIAL EXAMINED
Order by:    
PBI USI Country State Division Locality Sex Type Status Elevation(m) GPS Coordinate Habitat Collection_Date Collector Inst. Code
PBI_OON 00000527  PERU  Cusco    Rio Camisea, Cashiari 3  1 Adult Female    690  -11.88250; -72.65055    02 Sept 1997  S. Cordova  MUSM 
PBI_OON 00000526  PERU  Cusco    Rio Camisea, Armihuari  1 Adult Male  Holotype  560  -11.85000; -72.76666    16 Oct 1997  S. Cordova  MUSM 
PBI_OON 00000525  PERU  Cusco    Pagoreni, Rio Camisea  2 Adult Male    465  -11.70611; -72.90277    07 May 1998  S. Cordova  MUSM 
PBI_OON 00000524  PERU  Cusco    Pagoreni, Rio Camisea  2 Adult Male    465  -11.70611; -72.90277    07 May 1998  S. Cordova  MUSM 
PBI_OON 00010051  PERU  Madre de Dios    Tambopata  1 Adult Male      -12.83333; -69.28333  rotten palm flowers  25 Oct 1982  L. Watrous, G. Mazurek  FMNH 
PBI_OON 00038403  PERU  Madre de Dios    Tambopata  1 Adult Male      -12.83333; -69.28333  bamboo litter  28 Oct 1982  L. Watrous, G. Mazurek  FMNH 
PBI_OON 00010639  PERU  Madre de Dios    Tambopata  1 Adult Male      -12.83333; -69.28333  litter under crown of fallen tree  28 Oct 1982  L. Watrous, G. Mazurek  FMNH 
PBI_OON 00010078  PERU  Madre de Dios    Tambopata  1 Adult Male      -12.83333; -69.28333  rotten palm flowers  24 Oct 1982  L. Watrous, G. Mazurek  FMNH 
PBI_OON 00014813  PERU  Madre de Dios  Provincia Manu  Cuenca del Rio Los Amigos; CICRA  1 Adult Female      -12.53483; -70.11189  rotten palm flowers  17 Mar 2006  M. Deza  MEKRB 


 
 
 
 
The American Museum of Natural History, New York, in collaboration with
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The Field Museum of Natural History, Chicago   George Washington University, Washington DC
 
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This material is based upon work supported by the National Science Foundation under Grant No. DEB 0613754. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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