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OONOPIDAE SPECIES DESCRIPTION
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Opopaea fragilis       Get publication



            Male (PBI_OON 22894). Total length 1.18. CEPHALOTHORAX: Carapace yellow, without any pattern, elongate oval in dorsal view, pars cephalica flat 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 smooth, sides smooth, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin undulate, rebordered, without 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, sloping forward 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, reduced, tiny, aLE: 0.023; PME: 0.024; PLE: 0.022, PME largest, all eyes circular; posterior eye row recurved from above, straight from front; ALE separated by more than their diameter, ALE-PLE separated by less than ALE radius, PME touching for less than half their length, PLE-PME separated by less than PME radius. Sternum longer than wide, yellow, uniform, fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, furrow smooth, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture absent, 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 II and III greater than distance between coxae I and II, and coxae III and IV, extensions of pre-coxal triangles absent, lateral margins unmodified, without posterior hump; setae sparse, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium yellow. 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 present. Labium triangular, fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; 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, unmodified, scuto-pedicel region unmodified, scutum not extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent, scuto/pedicel area less than 1/2 diameter of pedicel without scutal ridges.. Dorsal scutum weakly sclerotized, yellow, without color pattern, covering 1/2 to 3/4 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, yellow, long, almost rectangular, covering about 3/4 of abdominal length, fused to epigastric scutum, anterior margin unmodified, without 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 stout setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus represented only by setae. LEGS: white, 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, oval, situated at level of anterior spiracles, rebordered; 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, patella orange brown, 0.192 long, 0.098 wide, connection to femur at 0.43; 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; bulb pale orange, bulb ventrally strongly bulged tip with deep prolateral excavation, distally striated, fenestra small..
Opopaea fragilis, male abdomen, anterior view (image by BB, specimen ID: ---22894)

OPOPAFRAGImpabda22894BB.tif

Opopaea fragilis, male abdomen, ventral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImpabdv22894BB.tif

Opopaea fragilis, male carapace, anterior view (image by BB, specimen ID: ---22894)

OPOPAFRAGImpcara22894BB.tif

Opopaea fragilis, male carapace, dorsal view (image by BB, specimen ID: ---22894)

OPOPAFRAGImpcard22894BB.tif

Opopaea fragilis, male carapace, prolateral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImpcarp22894BB.tif

Opopaea fragilis, male palp, dorsal view (image by BB, specimen ID: ---22894)

OPOPAFRAGImppald22894BB.tif

Opopaea fragilis, male habitus, dorsal view (image by BB, specimen ID: ---22894)

OPOPAFRAGImphabd22894BB.tif

Opopaea fragilis, male habitus, lateral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImphabl22894BB.tif

Opopaea fragilis, male palp, prolateral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImppalp22894BB.tif

Opopaea fragilis, male palp, retrolateral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImppalr22894BB.tif

Opopaea fragilis, male sternum, ventral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImpstev22894BB.tif

Opopaea fragilis, male palp, dorsal view (image by BB, specimen ID: ---22894)

OPOPAFRAGImspald22894BB.tif

Opopaea fragilis, male palp, prolateral view (image by BB, specimen ID: ---22894)

OPOPAFRAGImspalp22894BB.tif

 

DISTRIBUTION

AUSTRALIA
Opopaea fragilis coordinates
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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 00022894  AUSTRALIA  Western Australia    Mt. Gibson Stn.  1 Adult Male  Holotype    -29.68972; 117.36638  eucalypt forest, litter  21 Aug 2001  R. Leys, K. Ottewell  SAMA 


 
 
 
 
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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