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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Xestaspis semengoh       Get publication



            Male (PBI_OON 31783). Total length 2.29. 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 with pair of 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 granulate, 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 light, needle-like, present in u-shaped row; non-marginal pars thoracica setae absent; 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, all subequal, all eyes 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 longer than wide, orange-brown, uniform, fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, furrow with row of large pits, radial furrow opposite coxae III absent, surface smooth, covered with large round pits, microsculpture only in furrows, 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, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins with indented extensions between coxae, without posterior hump; setae sparse, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae slightly divergent, 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, evenly scattered; paturon inner margin with scattered setae, distal region abruptly narrowed, posterior surface unmodified, inner margin unmodified. Labium rectangular, fused to sternum, anterior margin not indented at middle, same as sternum in sclerotization; subdistal portion with unmodified setae. Endites distally not excavated, anteromedian tip unmodified, 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, elliptical, without setae, anterolateral edge with tubercle. 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 absent, matted setae on anterior ventral abdomen in pedicel area 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 punctate, sides punctate, anterior half without projecting denticles. Epigastric scutum strongly sclerotized, surrounding pedicel, slightly protuding, 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 short posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, light, plumose. Epigastric area setae uniform, light, plumose. Postepigastric area setae present, light, plumose. Spinneret scutum with fringe of needle-like setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present. 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 present, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent, metatarsi III and IV weak ventral scopula absent, tibiae ventral apex of tibia III and IV with brush of specialized hairs with even hair shaft and bent, narrowing, plumose hair tip,, metatarsi dorsal apex of metatarsi I-IV with small appendage. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria examined with Compound microscope; tibia: each with three; metatarsus: each with one. GENITALIA: Epigastric region with sperm pore small, narrow, slit-like, 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 pale orange; embolus dark, prolateral excavation absent, embolus long, slender, lamellar, about as long as bulbus, split into two parts half way to distal tip, embolus distal tip bent ventrally with small teeth on dorsal side; embolus adjacent to a third, slightly shorter, ventral appendage without ventral escavation; embolus-conductor-complex mesially bent in dorsal view; bulbus with pointed conical extension.; trochanter normal size, with ventral projection; 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 with 3 trichobothria; cymbium pale orange, ovoid in dorsal view, fused with bulb but with clearly defined seam between, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, stout, tapering apically.
Xestaspis semengoh, male abdomen, anterior view (image by BE, specimen ID: ---31783)

xestasemenmpabda31783BE.tif.tif

Xestaspis semengoh, male abdomen, ventral view (image by BE, specimen ID: ---31783)

xestasemenmpabdv31783BE.tif.tif

Xestaspis semengoh, male booklung covers, lateral view (image by BE, specimen ID: ---31783)

xestasemenmpbocl31783BE.tif.tif

Xestaspis semengoh, male booklung covers, posterior view (image by BE, specimen ID: ---31783)

xestasemenmpbocT31783BE.tif.tif

Xestaspis semengoh, male carapace, anterior view (image by BE, specimen ID: ---31783)

xestasemenmpcara31783BE.tif.tif

Xestaspis semengoh, male carapace, dorsal view (image by BE, specimen ID: ---31783)

xestasemenmpcard31783BE.tif.tif

Xestaspis semengoh, male carapace, lateral view (image by BE, specimen ID: ---31783)

xestasemenmpcarl31783BE.tif.tif

Xestaspis semengoh, male carapace, posterior view (image by BE, specimen ID: ---31783)

xestasemenmpcarT31783BE.tif.tif

Xestaspis semengoh, male habitus, dorsal view (image by BE, specimen ID: ---31783)

xestasemenmphabd31783BE.tif.tif

Xestaspis semengoh, male habitus, lateral view (image by BE, specimen ID: ---31783)

xestasemenmphabl31783BE.tif.tif

Xestaspis semengoh, male habitus, ventral view (image by BE, specimen ID: ---31783)

xestasemenmphabv31783BE.tif.tif

Xestaspis semengoh, male sternum, ventral view (image by BE, specimen ID: ---31783)

xestasemenmpstev31783BE.tif.tif

Xestaspis semengoh, male abdomen, anterior view (image by BE, specimen ID: ---31783)

xestasemenmpabda31783BE.tif

Xestaspis semengoh, male abdomen, ventral view (image by BE, specimen ID: ---31783)

xestasemenmpabdv31783BE.tif

Xestaspis semengoh, male booklung covers, lateral view (image by BE, specimen ID: ---31783)

xestasemenmpbocl31783BE.tif

Xestaspis semengoh, male booklung covers, posterior view (image by BE, specimen ID: ---31783)

xestasemenmpbocT31783BE.tif

Xestaspis semengoh, male carapace, anterior view (image by BE, specimen ID: ---31783)

xestasemenmpcara31783BE.tif

Xestaspis semengoh, male carapace, dorsal view (image by BE, specimen ID: ---31783)

xestasemenmpcard31783BE.tif

Xestaspis semengoh, male carapace, lateral view (image by BE, specimen ID: ---31783)

xestasemenmpcarl31783BE.tif

Xestaspis semengoh, male carapace, posterior view (image by BE, specimen ID: ---31783)

xestasemenmpcarT31783BE.tif

Xestaspis semengoh, male habitus, dorsal view (image by BE, specimen ID: ---31783)

xestasemenmphabd31783BE.tif

Xestaspis semengoh, male habitus, lateral view (image by BE, specimen ID: ---31783)

xestasemenmphabl31783BE.tif

Xestaspis semengoh, male habitus, ventral view (image by BE, specimen ID: ---31783)

xestasemenmphabv31783BE.tif

Xestaspis semengoh, male sternum, ventral view (image by BE, specimen ID: ---31783)

xestasemenmpstev31783BE.tif

Xestaspis semengoh, male embolus, prolateral view (image by BE, specimen ID: ---31783)

xestasemenmdembp31783BE.tif

Xestaspis semengoh, male palp, prolateral view (image by BE, specimen ID: ---31783)

xestasemenmdpalp31783BE.tif

Xestaspis semengoh, male conductor, ventral view (image by BE, specimen ID: ---31783)

xestasemenmpconv31783BE.tif

Xestaspis semengoh, male palp, right, modified, prolateral view (image by BE, specimen ID: ---31783)

xestasemenmdparp31783BE.tif


            Female (PBI_OON 31782). Total length 2.33. As in male except as noted. CEPHALOTHORAX: Carapace pars cephalica slightly elevated in lateral view. Sternum rows of large rather channel-like than round pits.. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Epigastric scutum without lateral joints. Postepigastric scutum not fused to epigastric scutum, without posteriorly directed lateral apodemes. Colulus represented only by setae. LEGS: tibiae ventral apex of tibia III and IV with brush of specialized hairs with even hair shaft and bent, narrowing, plumose hair tip, metatarsi dorsal apex of metatarsi I-IV with small appendage. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Compound microscope. GENITALIA: Ventral view: unmodified, genital opening refers to epigastric furrow.
Xestaspis semengoh, female abdomen, anterior view (image by BE, specimen ID: ---31782)

xestasemenfpabda31782BE.tif

Xestaspis semengoh, female booklung covers, lateral view (image by BE, specimen ID: ---31782)

xestasemenfpbocl31782BE.tif

Xestaspis semengoh, female booklung covers, posterior view (image by BE, specimen ID: ---31782)

xestasemenfpbocT31782BE.tif

Xestaspis semengoh, female carapace, anterior view (image by BE, specimen ID: ---31782)

xestasemenfpcara31782BE.tif

Xestaspis semengoh, female carapace, dorsal view (image by BE, specimen ID: ---31782)

xestasemenfpcard31782BE.tif

Xestaspis semengoh, female carapace, lateral view (image by BE, specimen ID: ---31782)

xestasemenfpcarl31782BE.tif

Xestaspis semengoh, female habitus, dorsal view (image by BE, specimen ID: ---31782)

xestasemenfphabd31782BE.tif

Xestaspis semengoh, female habitus, lateral view (image by BE, specimen ID: ---31782)

xestasemenfphabl31782BE.tif

Xestaspis semengoh, female habitus, ventral view (image by BE, specimen ID: ---31782)

xestasemenfphabv31782BE.tif

Xestaspis semengoh, female sternum, ventral view (image by BE, specimen ID: ---31782)

xestasemenfpstev31782BE.tif

 

DISTRIBUTION

MALAYSIA
Xestaspis semengoh 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 00031782  MALAYSIA  Sarawak    Semengoh Arboretum (Semongok)  1 Adult Female  Paratype    1.40000; 110.40000  humus  27 Mar 1985  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00031783  MALAYSIA  Sarawak    Semengoh Arboretum (Semongok)  1 Adult Male  Holotype    1.40000; 110.40000  humus  23 Mar 1985  C.L. Deeleman and P.R. Deeleman  RMNH 


 
 
 
 
The American Museum of Natural History, New York, in collaboration with
The California Academy of Sciences, San Francisco   The University of California, Berkeley
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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