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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Opopaea triangularis       Get publication



            Male (PBI_OON 4698). Total length 1.33. CEPHALOTHORAX: Carapace orange-brown, without any pattern, broadly oval in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less, with angular 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 striated, 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 in u-shaped row; non-marginal pars thoracica setae light, needle-like; marginal setae light, needle-like. Clypeus margin slightly rebordered, straight in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present, light, needle-like. Chilum absent. Eyes six, well developed, aLE: 0.068; PME: 0.069; PLE: 0.055, PME largest, ALE circular, PME squared, PLE circular; posterior eye row recurved from above, straight 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 touching. Sternum as long as wide, orange-brown, uniform, fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, furrow with rows of small pits, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture only in furrows, sickle-shaped structures absent, anterior margin unmodified, 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 unmodified, without posterior hump; setae abundant, light, needle-like, evenly scattered, originating from small pits, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae straight, anterior face unmodified; 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 distal region unmodified, posterior surface unmodified, promargin unmodified, inner margin unmodified, laminate groove absent. Labium triangular, fused to sternum, anterior margin indented at middle, same as sternum in sclerotization, labium basally with semicircular rim; with 3-5 setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, serrula present in single row, anteromedian tip with one strong, tooth-like projection, posteromedian part unmodified, same as sternum in sclerotization. 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 small, ovoid, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube short, with small, dorsolateral, triangular extensions, scuto-pedicel region with paired curved scutal ridges, scutum not extending far dorsal of pedicel, plumose hairs lateral of pedicel, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent, scuto-pedicel region about diameter of pedicel, paired scutal ridges connected. 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, semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with long posteriorly directed lateral apodemes, anterior margin of postepigastric scutum with elevated triangle of ridges. 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 stout setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus represented only by setae. LEGS: pale orange, 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 spines absent. 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 at level of anterior spiracles, unmodified; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments orange-brown; embolus light, prolateral excavation present; trochanter normal size, unmodified; femur normal size, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella medially; patella longer than femur, much larger than femur, without prolateral row of ridges, setae unmodified, palpal patella 0.297 long, 0.156wide, connection to femur at 0.55.; tibia trichobothria not examined; cymbium pale orange, narrow in dorsal view, completely fused with bulb, no seam visible, not extending beyond distal tip of bulb, covered with plumose setae, without stout setae, without distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, slender, tapering apically, similar to O. calm. bulb ventrally strongly bulged with strong prolateral spine, tip spatulate with deep prolateral incision, fentesta small.
Opopaea triangularis, male abdomen, anterior view (image by BB, specimen ID: ---04698)

OPOPATRIANmpabda04698BB.tif

Opopaea triangularis, male abdomen, ventral view (image by BB, specimen ID: ---04698)

OPOPATRIANmpabdv04698BB.tif

Opopaea triangularis, male carapace, anterior view (image by BB, specimen ID: ---04698)

OPOPATRIANmpcara04698BB.tif

Opopaea triangularis, male carapace, prolateral view (image by BB, specimen ID: ---04698)

OPOPATRIANmpcarp04698BB.tif

Opopaea triangularis, male habitus, lateral view (image by BB, specimen ID: ---04698)

OPOPATRIANmphabl04698BB.tif

Opopaea triangularis, male habitus, dorsal view (image by BB, specimen ID: ---04698)

OPOPATRIANmphabd04698BB.tif

Opopaea triangularis, male habitus, ventral view (image by BB, specimen ID: ---04698)

OPOPATRIANmphabv04698BB.tif

Opopaea triangularis, male palp, prolateral view (image by BB, specimen ID: ---04698)

OPOPATRIANmppalp04698BB.tif

Opopaea triangularis, male palp, retrolateral view (image by BB, specimen ID: ---04698)

OPOPATRIANmppalr04698BB.tif

Opopaea triangularis, male palp, dorsal view (image by BB, specimen ID: ---04698)

OPOPATRIANmppald04698BB.tif

Opopaea triangularis, male abdomen, ventral view (image by BB, specimen ID: ---23631)

OPOPATRIANmsabdv23631BB.tif

Opopaea triangularis, male endites, ventral view (image by BB, specimen ID: ---23631)

OPOPATRIANmsendv23631BB.tif

Opopaea triangularis, male palp, dorsal view (image by BB, specimen ID: ---23631)

OPOPATRIANmspald23631BB.tif

Opopaea triangularis, male palp, prolateral view (image by BB, specimen ID: ---23631)

OPOPATRIANmspalp23631BB.tif

Opopaea triangularis, male pedicel, lateral view (image by BB, specimen ID: ---23631)

OPOPATRIANmspedl23631BB.tif

Opopaea triangularis, male sternum, ventral view (image by BB, specimen ID: ---23631)

OPOPATRIANmsstev23631BB.tif


            Female (PBI_OON 23619). Total length 1.61. As in male except as noted. CEPHALOTHORAX: Eyes aLE: 0.066; PME: 0.062; PLE: 0.044. Labium labium basally with semicircular rim. Endites anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Pedicel scuto-pedicel region about diameter of pedicel, paired scutal ridges connected. Postepigastric scutum not fused to epigastric scutum. LEGS: Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined.
Opopaea triangularis, female abdomen, anterior view (image by BB, specimen ID: ---23619)

OPOPATRIANfpabda23619BB.tif

Opopaea triangularis, female carapace, anterior view (image by BB, specimen ID: ---23619)

OPOPATRIANfpcara23619BB.tif

Opopaea triangularis, female abdomen, ventral view (image by BB, specimen ID: ---23619)

OPOPATRIANfpabdv23619BB.tif

Opopaea triangularis, female epigynum, epigynal area, ventral view (image by BB, specimen ID: ---23619)

OPOPATRIANfpepiv23619BB.tif

Opopaea triangularis, female habitus, dorsal view (image by BB, specimen ID: ---23619)

OPOPATRIANfphabd23619BB.tif

Opopaea triangularis, female habitus, lateral view (image by BB, specimen ID: ---23619)

OPOPATRIANfphabl23619BB.tif

Opopaea triangularis, female habitus, ventral view (image by BB, specimen ID: ---23619)

OPOPATRIANfphabv23619BB.tif

Opopaea triangularis, female epigynum, epigynal area, dorsal view (image by BB, specimen ID: ---23619)

OPOPATRIANfpepid23619BB.tif

 

DISTRIBUTION

AUSTRALIA
Opopaea triangularis 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 Opopaea triangularis, Discover Life Map
 

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 00023631  AUSTRALIA  Western Australia  Pilbara  Marda Pool, 11 km ESE  1 Adult Male      -21.05555; 116.25166    24 Sept 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004701  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp, 14 km E  1 Adult Male      -21.27138; 120.58500    01 Aug 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004706  AUSTRALIA  Western Australia  Pilbara  Yanyare River Mouth, 8.5 km WSW  4 Adult Male      -20.84277; 116.36694    28 Nov 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004712  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp, 78 km E  2 Adult Male      -21.30416; 121.20027    29 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004715  AUSTRALIA  Western Australia  Pilbara  Warrawagine Homestead, 11 km SW  1 Adult Male      -20.91694; 120.62416    03 Jul 2005  CALM Pilbara Survey  WAMP 
PBI_OON 00004718  AUSTRALIA  Western Australia  Pilbara  Cowra Line Camp, 34 km NNW site RHNW09 2204'07.7"S 11858'43.3"E  2 Adult Male      -22.06861; 118.97861    26 Aug 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00023619  AUSTRALIA  Western Australia  Pilbara  Marda Pool, 11 km ESE  1 Adult Female  Allotype    -21.05555; 116.25166    24 Sept 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004706  AUSTRALIA  Western Australia  Pilbara  Yanyare River Mouth, 8.5 km WSW  1 Adult Female      -20.84277; 116.36694    28 Nov 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004711  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp, 32.5 km ESE  2 Adult Male      -21.33361; 120.75222    31 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004714  AUSTRALIA  Western Australia  Pilbara  Wodgina, 13 km SSE  1 Adult Male      -21.27972; 118.69888    23 Sept 2005  CALM Pilbara Survey  WAMP 
PBI_OON 00004717  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp, 58 km ESE  1 Adult Male      -21.32194; 121.00222    30 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00048271  AUSTRALIA  Western Australia  Pilbara  Bonney Downs Homestead, 21 km WNW  1 Adult Male      -22.09472; 119.75333    07 Aug 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004698  AUSTRALIA  Western Australia  Pilbara  Marda Pool, 11 km ESE  1 Adult Male  Holotype    -21.05555; 116.25166    24 Sept 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004704  AUSTRALIA  Western Australia  Pilbara  Mt Murray, 1 km SE  1 Adult Male      -22.49833; 115.55805    29 Sept 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004708  AUSTRALIA  Western Australia  Pilbara  Lake Poongkaliyarra, 9 km NW  1 Adult Male      -20.93972; 117.03472    03 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004713  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp,83 km E  4 Adult Female      -21.28833; 121.23722    29 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004716  AUSTRALIA  Western Australia  Pilbara  Wodgina, 20 km ENE  4 Adult Female      -21.11472; 118.85166    23 Sept 2005  CALM Pilbara Survey  WAMP 
PBI_OON 00004722  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp, 10 km E  2 Adult Male      -21.24611; 120.53888    01 Aug 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004702  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp, 10 km E  1 Adult Male      -21.24611; 120.53888    01 Aug 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004707  AUSTRALIA  Western Australia  Pilbara  Nullagine, 45 km N  1 Adult Male      -21.47972; 120.09055    19 May 2004  CALM Pilbara Survey  WAMP 
PBI_OON 00004713  AUSTRALIA  Western Australia  Pilbara  Meentheena Outcamp,83 km E  4 Adult Male      -21.28833; 121.23722    29 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004716  AUSTRALIA  Western Australia  Pilbara  Wodgina, 20 km ENE  3 Adult Male      -21.11472; 118.85166    23 Sept 2005  CALM Pilbara Survey  WAMP 
PBI_OON 00004719  AUSTRALIA  Western Australia  Pilbara  Wodgina, 32.5 km SSE  1 Adult Male      -21.45833; 118.72583    23 Sept 2005  CALM Pilbara Survey  WAMP 


 
 
 
 
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