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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Tinadysderina otonga       Get publication



            Male (PBI_OON 49557). Total length 1.83. CEPHALOTHORAX: Carapace orange-brown, without any pattern, broadly oval in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less, with rounded posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, anterolateral corners with strongly sclerotized, triangular extension, posterolateral surface without spikes, surface of elevated portion of pars cephalica granulate, sides granulate, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, rebordered, with blunt 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 fused to clypeus. Eyes six, well developed, ALE largest, ALE oval, PME squared, PLE oval; posterior eye row recurved from above, procurved from front; ALE separated by less than their radius, 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, with radial furrows between coxae I-II, II-III, III-IV, furrow smooth, radial furrow opposite coxae III absent, surface coarsely reticulate, without pits, microsculpture everywhere but front, sickle-shaped structures absent, anterior margin with continuous transverse groove, posterior margin not extending posteriorly of coxae IV, 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, with posterior hump, all three transverse ridges complete, sinuous around midline; setae sparse, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae slightly divergent, anterior face with swelling; promargin with one tooth, retromargin without teeth; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae dark, needle-like, densest medially; paturon inner margin with scattered 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 not excavated, serrula absent, posteromedian part unmodified, same as sternum in sclerotization, anterior portion with long, distally rounded extension, tip of extension heavily sclerotized. 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, groove connecting posterior spiracles extending laterally beyond spiracles toward sides of postepigastric scutum; anterior spiracles also connected by groove. Posterior spiracles 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, orange-brown, 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, orange-brown, long, almost rectangular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with short posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, light, needle-like. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Spinneret scutum with fringe of long setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present. 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; r0-1-1; tibiae: I v4-4-1p; II v4-4-0; metatarsi: I v2-1p-2; II v2-0-2. 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, circular, 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 yellow; embolus light, prolateral excavation absent, with prolaterally directed prong at about half its length, sinuous distal to that prong; 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, without prolateral row of ridges, setae unmodified; tibia trichobothria not examined; cymbium yellow, ovoid in dorsal view, completely fused with bulb, no seam visible, extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb yellow, shorter than cymbium, slender, elongated, relatively small.
Tinadysderina otonga, male sternum, ventral view (image by LE, specimen ID: ---49558)

Tinadotongmpstev49558LE.tif

Tinadysderina otonga, male palp, prolateral view (image by LE, specimen ID: ---49558)

Tinadotongmppalp49558LE.tif

Tinadysderina otonga, male palp, ventral view (image by LE, specimen ID: ---49558)

Tinadotongmppalv49558LE.tif

Tinadysderina otonga, male palp, retrolateral view (image by LE, specimen ID: ---49558)

Tinadotongmppalr49558LE.tif

Tinadysderina otonga, male embolus, prolateral view (image by LE, specimen ID: ---49558)

Tinadotongmsembp49558LE.tif

Tinadysderina otonga, male embolus, retrolateral view (image by LE, specimen ID: ---49558)

Tinadotongmsembr49558LE.tif

Tinadysderina otonga, male embolus, ventral view (image by LE, specimen ID: ---49558)

Tinadotongmsembv49558LE.tif

Tinadysderina otonga, male endites, modified setae, ventral view (image by LE, specimen ID: ---49558)

Tinadotongmsemsv49558LE.tif

Tinadysderina otonga, male endites, ventral view (image by LE, specimen ID: ---49558)

Tinadotongmsendv49558LE.tif

Tinadysderina otonga, male chelicerae, ventral view (image by LE, specimen ID: ---49558)

Tinadotongmschev49558LE.tif


            Female (PBI_OON 49557). Total length 2.11. As in male except as noted. CEPHALOTHORAX: Chilum fused to clypeus. Eyes ALE separated by their radius to diameter. Sternum all three transverse ridges complete, sinuous around midline. Endites anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Book lung covers groove connecting posterior spiracles extending laterally beyond spiracles toward sides of postepigastric scutum; anterior spiracles also connected by groove. Dorsal scutum fused to epigastric scutum. Epigastric scutum without lateral joints. Postepigastric scutum covering about 3/4 of abdominal length. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-0-2; r1-1-1; II p0-0-1; r1-1-0; tibiae: I v4-4-2; II v4-4-1p; metatarsi: I v2-2-2; II v2-1p-2. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: genital atrium triangular, posterior margin heavily sclerotized, anterior margin with rectangular, posteriorly directed projection at midline.
Tinadysderina otonga, female abdomen, ventral view (image by LE, specimen ID: ---49561)

Tinadotongfpabdv49561LE.tif

Tinadysderina otonga, female epigynum, epigynal area, ventral view (image by LE, specimen ID: ---49561)

Tinadotongfpepiv49561LE.tif

Tinadysderina otonga, female internal female genitalia, dorsal view (image by LE, specimen ID: ---49561)

Tinadotongfpifgd49561LE.tif

Tinadysderina otonga, female internal female genitalia, ventral view (image by LE, specimen ID: ---49561)

Tinadotongfpifgv49561LE.tif

 

DISTRIBUTION

ECUADOR
Tinadysderina otonga coordinates
Click the following link for a map from Discover Life which displays the records below. You can click anywhere on that map to zoom in, and clicking on any point will display the full data for that locality Tinadysderina otonga, Discover Life Map
 

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 00010208  ECUADOR  Pichincha    15 km E Tandapi  2 Adult Male    2300  -0.41939; -78.79506  moss forest litter  07 Jun 1976  S. Peck  FMNH 
PBI_OON 00049557  ECUADOR  Pichincha    R.B. Maquipucuna  1 Adult Male  Holotype  1600  0.09277; -78.62694  ridgetop montane, forest litter  29 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049558  ECUADOR  Pichincha    R. B. Maquipucuna  1 Adult Female    1480  0.10694; -78.62166  montane evergreen, forest litter  27 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049561  ECUADOR  Pichincha    Bellavista Reserve, Ridge Trail, 12 km S Nanegalito  7 Adult Female    2250  -0.01500; -78.83222  closed forest, litter  26 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049562  ECUADOR  Pichincha    Bellavista Reserve, 12km S Nanegalito  2 Adult Female    2150  -0.00888; -78.68555  cloud forest, litter  30 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049561  ECUADOR  Pichincha    Bellavista Reserve, Ridge Trail, 12 km S Nanegalito  1 Adult Male    2250  -0.01500; -78.83222  closed forest, litter  26 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049562  ECUADOR  Pichincha    Bellavista Reserve, 12km S Nanegalito  2 Adult Male    2150  -0.00888; -78.68555  cloud forest, litter  30 Oct 1999  R. Anderson  AMNH 
PBI_OON 00010208  ECUADOR  Pichincha    15 km E Tandapi  1 Adult Female    2300  -0.41939; -78.79506  forest, moss forest litter  07 Jun 1976  S. Peck  FMNH 
PBI_OON 00049557  ECUADOR  Pichincha    R.B. Maquipucuna  1 Adult Female  Allotype  1600  0.09277; -78.62694  ridgetop montane, forest litter  29 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049558  ECUADOR  Pichincha    R. B. Maquipucuna  3 Adult Male    1480  0.10694; -78.62166  montane evergreen, forest litter  27 Oct 1999  R. Anderson  AMNH 
PBI_OON 00049559  ECUADOR  Santo Domingo de los Tsachilas    Otonga  3 Adult Female    1625  -0.41972; -78.99472  forest litter  08 Dec 2009  B. Baehr  AMNH 
PBI_OON 00043146  ECUADOR  Santo Domingo de los Tsachilas    Bosque Integral Otonga  1 Adult Male    1705  -0.41972; -78.99472  forest, litter  08 Dec 2009  Niarchos Expedition, M. Ramirez, C. Grismado, M. Izquierdo, F. Labarque  AMNH 
PBI_OON 00049560  ECUADOR  Santo Domingo de los Tsachilas    Bosque Integral Otonga  1 Adult Female    1705  -0.41972; -78.99472  forest, litter  08 Dec 2009  Niarchos expedition, N. Duperre, E. Tapia  AMNH 
PBI_OON 00043145  ECUADOR  Santo Domingo de los Tsachilas    Otonga  1 Adult Male    1625  -0.41972; -78.99472  forest litter  08 Dec 2009  Niarchos Expedition  AMNH 


 
 
 
 
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