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



            Male (PBI_OON 3676). Total length 1.99. 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, rectangular, extending distance equal to about one-half of clypeus height. Eyes six, well developed, ALE largest, ALE oval, PME squared, PLE oval; posterior eye row recurved 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 continuous 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, lateral setae with tuberculate bases; 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, both edges of ledge rounded; inner margin with small, dorsally directed spine; without teeth on both promargin and retromargin; 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, tips of both projections directed medially. 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 about 3/4 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 p0-0-2; r0-1-0; II p0-0-1; tibiae: I v4-4-2; II v4-4-1p; 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, ventral flange originating at base of embolus, expanded distally, dorsal flange bifid, with transverse ventral portion and angular distal portion; 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 cotopaxi, male bulb, ventral view (image by ND, specimen ID: ---16635)

Scadycotopmpbulv16635ND.tif

Scaphidysderina cotopaxi, male carapace, anterior view (image by ND, specimen ID: ---16635)

Scadycotopmpcara16635ND.tif

Scaphidysderina cotopaxi, male carapace, dorsal view (image by ND, specimen ID: ---16635)

Scadycotopmpcard16635ND.tif

Scaphidysderina cotopaxi, male palp, prolateral view (image by ND, specimen ID: ---16635)

Scadycotopmppalp16635ND.tif

Scaphidysderina cotopaxi, male palp, retrolateral view (image by ND, specimen ID: ---16635)

Scadycotopmppalr16635ND.tif

Scaphidysderina cotopaxi, male sternum, ventral view (image by ND, specimen ID: ---16635)

Scadycotopmpstev16635ND.tif

Scaphidysderina cotopaxi, male embolus, ventral view (image by ND, specimen ID: ---16635)

Scadycotopmsembv16635ND.tif

Scaphidysderina cotopaxi, male carapace, anterior view (image by ND, specimen ID: ---16635)

Scadycotopmscara16635ND.tif

Scaphidysderina cotopaxi, male endites, ventral view (image by ND, specimen ID: ---16635)

Scadycotopmsendv16635ND.tif


            Female (PBI_OON 16635). Total length 2.35. 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, rectangular, extending distance equal to about one-half of clypeus height. Sternum surface crenulated, lateral setae with tuberculate bases. Mouthparts: Chelicerae anterior face of paturon with produced ledge, both edges of ledge rounded; with one tooth on both promargin and retromargin. 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, not fused to epigastric scutum. 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): femora: I p0-0-2; r0-1-0; II p0-0-1; tibiae: I v4-4-2; II v4-4-1p; metatarsi: I v2-2-2; II v2-2-1p. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: atrium wide, anterior receptaculum broadly triangular.
Scaphidysderina cotopaxi, female abdomen, lateral view (image by ND, specimen ID: ---16635)

Scadycotopfpabdl16635ND.tif

Scaphidysderina cotopaxi, female abdomen, ventral view (image by ND, specimen ID: ---16635)

Scadycotopfpabdv16635ND.tif

Scaphidysderina cotopaxi, female carapace, anterior view (image by ND, specimen ID: ---16635)

Scadycotopfpcara16635ND.tif

Scaphidysderina cotopaxi, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---16635)

Scadycotopfpepiv16635ND.tif

Scaphidysderina cotopaxi, female internal female genitalia, dorsal view (image by ND, specimen ID: ---16635)

Scadycotopfpifgd16635ND.tif

Scaphidysderina cotopaxi, female internal female genitalia, ventral view (image by ND, specimen ID: ---16635)

Scadycotopfpifgv16635ND.tif

 

DISTRIBUTION

ECUADOR
Scaphidysderina cotopaxi 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 00030636  ECUADOR  Cotopaxi    Cotopaxi National Park, Laguna de Limpiopungo  1 Adult Male    3865  -0.61674; -78.46674  sifting moss  03 Dec 2009  Niarchos Expedition  AMNH 
PBI_OON 00000029  ECUADOR  Los Rios    47 km S Santo Domingo, Rio Palenque  1 Adult Male    250  -0.68400; -79.15631  rainforest  05 May 1985  S., J. Peck  AMNH 
PBI_OON 00016634  ECUADOR  Los Rios    Los Rios Centro Cientifico, Rio Palenque  1 Adult Male    220  -0.58059; -79.36983  open primary forest  04 Jan 1981  unknown  KBIN 
PBI_OON 00000571  ECUADOR  Los Rios    Centro Cientifico Rio Palenque  1 Adult Female    220  -1.00000; -79.45000  open primary forest  24 Feb 1977  T. deVries  QCAZ 
PBI_OON 00016633  ECUADOR  Los Rios    Los Rios Centro Cientifico, Rio Palenque  1 Adult Female    220  -0.58059; -79.36983  open primary forest  01 Jan 1981  unknown  KBIN 
PBI_OON 00010200  ECUADOR  Los Rios    47 km S Santo Domingo, Rio Palenque Station  3 Adult Female    213  -0.68400; -79.15631  forest, litter  18 Jun 1975  S., J. Peck  FMNH 
PBI_OON 00000573  ECUADOR  Los Rios    Centro Cientifico Rio Palenque  1 Adult Female      -0.58656; -79.36400  forest, litter  01 Jan 1900  unknown  QCAZ 
PBI_OON 00000572  ECUADOR  Los Rios    Centro Cientifico Rio Palenque  1 Adult Male      -0.58656; -79.36400  closed primary forest  02 Mar 1979  S. Sandoval  QCAZ 
PBI_OON 00000570  ECUADOR  Los Rios    Centro Cientifico Rio Palenque  1 Adult Male  Holotype  220  -1.00000; -79.45000  closed primary forest  02 Mar 1977  T. deVries  QCAZ 
PBI_OON 00010796  ECUADOR  Los Rios    Centro Cientifico Rio Palenque  1 Adult Female      -0.58656; -79.36400  closed primary forest  02 Mar 1979  S. Sandoval  QCAZ 
PBI_OON 00010829  ECUADOR  Manabi    73 km NE Chone, 85 km W Santo Domingo  1 Adult Female    300  -0.23196; -79.62018  closed primary forest  09 Jun 1976  S. Peck  FMNH 
PBI_OON 00010222  ECUADOR  Pichincha    20-30 km ENE Alluriquin on Chiriboga Rd  1 Adult Male    1768  -0.16905; -78.86163  moss forest litter  19 Jun 1975  S. Peck  FMNH 
PBI_OON 00000652  ECUADOR  Pichincha    R.B. Maquipucuna  1 Adult Female    1620  0.10694; -78.62166  ridgetop montane, forest litter  29 Oct 1999  R. Anderson  AMNH 
PBI_OON 00000647  ECUADOR  Pichincha    Bellavista Reserve, 2km S Nanegalito, Ridge Trail  3 Adult Male    2250  -0.01500; -78.68222  cloud forest, forest litter  28 Oct 1999  R. Anderson  AMNH 
PBI_OON 00000661  ECUADOR  Pichincha    38 km W Quito, old Quito Santo Domingo road  1 Adult Female    2377  -0.27262; -78.86469  litter  25 Oct 1988  L. Herman  AMNH 
PBI_OON 00003676  ECUADOR  Pichincha    ca. 25 air km WNW Quito  1 Adult Male      -0.10848; -78.65649  cacao plantation  25 Dec 1980  S. Sandoval  CAS 
PBI_OON 00000574  ECUADOR  Pichincha    21 km N of Tandapi, on main road to Quito from Tandapi  4 Adult Female    2150  -0.45564; -77.75431  cloud forest litter, litter  07 Dec 2009  Niarchos expedition, N. Duperre, E. Tapia  AMNH 
PBI_OON 00000649  ECUADOR  Pichincha    Bellavista Reserve, 12km S Nanegalito  2 Adult Male    2150  -0.00888; -78.68555  cloud forest, forest litter  30 Oct 1999  R. Anderson  AMNH 
PBI_OON 00000648  ECUADOR  Pichincha    Bellavista Reserve, 2km S Nanegalito, Ridge Trail  1 Adult Female    2250  -0.01500; -78.68222  cloud forest, forest litter  28 Oct 1999  R. Anderson  AMNH 
PBI_OON 00010555  ECUADOR  Pichincha    15 km E Tandapi  1 Adult Male    2300  -0.41939; -78.79506  moist litter  07 Jun 1976  S. Peck  FMNH 
PBI_OON 00000574  ECUADOR  Pichincha    21 km N of Tandapi, on main road to Quito from Tandapi  2 Adult Male    2150  -0.45564; -77.75431  cloud forest litter, litter  07 Dec 2009  Niarchos expedition, N. Duperre, E. Tapia  AMNH 
PBI_OON 00000650  ECUADOR  Pichincha    R.B. Maquipucuna  1 Adult Female    1620  0.10694; -78.62166  montane evergreen, forest litter  27 Oct 1999  R. Anderson  AMNH 
PBI_OON 00000647  ECUADOR  Pichincha    Bellavista Reserve, 2km S Nanegalito, Ridge Trail  3 Adult Female    2250  -0.01500; -78.68222  cloud forest, forest litter  28 Oct 1999  R. Anderson  AMNH 
PBI_OON 00000651  ECUADOR  Pichincha    R.B. Maquipucuna  1 Adult Male    1620  0.10694; -78.62166  ridgetop montane, forest litter  29 Oct 1999  R. Anderson  AMNH 
PBI_OON 00016635  ECUADOR  Santo Domingo de los Tsachilas    Santo Domingo  1 Adult Male    600  -0.22049; -79.29030  tropical forest, humus  01 Apr 1965  J. Lelup  KBIN 
PBI_OON 00010221  ECUADOR  Santo Domingo de los Tsachilas    4 km E Santo Domingo  1 Adult Male    518  -0.23911; -79.14093  rainforest, litter  22 Jun 1975  S. Peck  FMNH 
PBI_OON 00000067  ECUADOR  Santo Domingo de los Tsachilas    W of Alluriquin, Tinalandia  1 Adult Male    2600  -0.29888; -79.05250  forest, Forest floor litter  19 May 1993  L. Herman  AMNH 
PBI_OON 00010224  ECUADOR  Santo Domingo de los Tsachilas    Tinalandia, 16 km SE Santo Domingo  1 Adult Female    680  -0.34027; -79.20450  Leaf Litter  15 Jun 1975  S. Peck  FMNH 
PBI_OON 00016635  ECUADOR  Santo Domingo de los Tsachilas    Santo Domingo  1 Adult Female    600  -0.22049; -79.29030  tropical forest, humus  01 Apr 1965  J. Lelup  KBIN 


 
 
 
 
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