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OONOPIDAE SPECIES DESCRIPTION
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Opopaea millstream       Get publication



            Male (PBI_OON 4630). Total length 1.33. CEPHALOTHORAX: Carapace pale orange, without any pattern, ovoid in dorsal view, pars cephalica slightly 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 without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica finely reticulate, sides finely reticulate, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, rebordered, 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 dark, needle-like; marginal setae dark, needle-like. Clypeus margin slightly rebordered, curved downwards in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present, dark, needle-like. Chilum absent. Eyes six, well developed, aLE: 0.075; PME: 0.071; PLE: 0.060, ALE largest, all eyes circular; posterior eye row recurved from above, straight from front; ALE separated by less than their radius, ALE-PLE separated by less than ALE radius, PME touching for less than half their length, PLE-PME touching. Sternum longer than wide, pale orange, 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, infra-coxal grovves shallow; setae sparse, light, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. 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; 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 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 large, 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 surrounding pedicel, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent. Dorsal scutum weakly 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 weakly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum weakly sclerotized, pale orange, long, semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with long posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, dark, needle-like. Epigastric area setae uniform, dark, needle-like. Postepigastric area setae present, dark, needle-like. Spinneret scutum with fringe of stout setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane without setae. Colulus represented only by setae. LEGS: yellow, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter than carapace, tibia I unmodified, tibia I Emeritís glands absent, 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, oval, 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 dark, prolateral excavation absent; 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, patella orange brown, 0.232 long, 0.140 wide, connection to femur at 0.53; tibia trichobothria not examined; cymbium pale orange, ovoid in dorsal view, completely fused with bulb, no seam visible, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, slender, tapering apically, bulb ventrally slightly bulged, with deep prolateral fold at the middle of the bulb, tip broad with long prolateral ribbed fold bent distally, fentestra close to tip..
Opopaea millstream, male abdomen, anterior view (image by BB, specimen ID: ---04630)

OPOPAMILLSmpabda04630BB.tif

Opopaea millstream, male carapace, anterior view (image by BB, specimen ID: ---04630)

OPOPAMILLSmpcara04630BB.tif

Opopaea millstream, male carapace, prolateral view (image by BB, specimen ID: ---04630)

OPOPAMILLSmpcarp04630BB.tif

Opopaea millstream, male habitus, dorsal view (image by BB, specimen ID: ---04630)

OPOPAMILLSmphabd04630BB.tif

Opopaea millstream, male habitus, lateral view (image by BB, specimen ID: ---04630)

OPOPAMILLSmphabl04630BB.tif

Opopaea millstream, male habitus, ventral view (image by BB, specimen ID: ---04630)

OPOPAMILLSmphabv04630BB.tif

Opopaea millstream, male palp, dorsal view (image by BB, specimen ID: ---04630)

OPOPAMILLSmppald04630BB.tif

Opopaea millstream, male palp, prolateral view (image by BB, specimen ID: ---04630)

OPOPAMILLSmppalp04630BB.tif

Opopaea millstream, male palp, retrolateral view (image by BB, specimen ID: ---04630)

OPOPAMILLSmppalr04630BB.tif

Opopaea millstream, male abdomen, ventral view (image by BB, specimen ID: ---20122)

OPOPAMILLSmsabdv20122BB.tif

Opopaea millstream, male endites, ventral view (image by BB, specimen ID: ---20122)

OPOPAMILLSmsendv20122BB.tif

Opopaea millstream, male palp, prolateral view (image by BB, specimen ID: ---20122)

OPOPAMILLSmspalp20122BB.tif

Opopaea millstream, male palp, ventral view (image by BB, specimen ID: ---20122)

OPOPAMILLSmspalv20122BB.tif

Opopaea millstream, male sternum, ventral view (image by BB, specimen ID: ---20122)

OPOPAMILLSmsstev20122BB.tif


            Female (PBI_OON_000020193). Total length 1.55. As in male except as noted. CEPHALOTHORAX: Carapace surface of elevated portion of pars cephalica smooth, sides granulate. Eyes aLE: 0.069; PME: 0.063; PLE: 0.055. Endites anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: cylindrical. 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 millstream, female abdomen, anterior view (image by BB, specimen ID: ---20193)

OPOPAMILLSfpabda20193BB.tif

Opopaea millstream, female abdomen, ventral view (image by BB, specimen ID: ---20193)

OPOPAMILLSfpabdv20193BB.tif

Opopaea millstream, female carapace, anterior view (image by BB, specimen ID: ---20193)

OPOPAMILLSfpcara20193BB.tif

Opopaea millstream, female carapace, prolateral view (image by BB, specimen ID: ---20193)

OPOPAMILLSfpcarp20193BB.tif

Opopaea millstream, female epigynum, epigynal area, ventral view (image by BB, specimen ID: ---20193)

OPOPAMILLSfpepiv20193BB.tif

Opopaea millstream, female habitus, dorsal view (image by BB, specimen ID: ---20193)

OPOPAMILLSfphabd20193BB.tif

Opopaea millstream, female habitus, lateral view (image by BB, specimen ID: ---20193)

OPOPAMILLSfphabl20193BB.tif

Opopaea millstream, female habitus, ventral view (image by BB, specimen ID: ---20193)

OPOPAMILLSfphabv20193BB.tif

Opopaea millstream, female epigynum, epigynal area, dorsal view (image by BB, specimen ID: ---20193)

OPOPAMILLSfpepid20193BB.tif

 

DISTRIBUTION

AUSTRALIA
Opopaea millstream 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 millstream, 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 00020122  AUSTRALIA  Western Australia  Pilbara  Millstream, 1.2 km SSE  7 Adult Female  Paratype    -21.60416; 117.07750    14 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00020193  AUSTRALIA  Western Australia  Pilbara  Millstream, 1.2 km SSE  1 Adult Female  Allotype    -21.60416; 117.07750    14 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004566  AUSTRALIA  Western Australia  Pilbara  Barowanna Hill, 4 km N  35 Adult Female      -21.39472; 117.17055    17 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004630  AUSTRALIA  Western Australia  Pilbara  Millstream, 1.2 km SSE  1 Adult Male  Holotype    -21.60416; 117.07750    14 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00004566  AUSTRALIA  Western Australia  Pilbara  Barowanna Hill, 4 km N  37 Adult Male      -21.39472; 117.17055    17 Jul 2003  CALM Pilbara Survey  WAMP 
PBI_OON 00020122  AUSTRALIA  Western Australia  Pilbara  Millstream, 1.2 km SSE  6 Adult Male  Paratype    -21.60416; 117.07750    14 Jul 2003  CALM Pilbara Survey  WAMP 


 
 
 
 
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