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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Xyphinus infaustus       Get publication



            Male (PBI_OON 12841). Total length 1.94. 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 without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea present, 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 slightly rebordered, sinuous 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, PME largest, ALE circular, PME oval, PLE circular; posterior eye row straight from above, procurved from front; ALE separated by their radius to diameter, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching. Sternum as long as wide, orange-brown, uniform, fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, 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, 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 abundant, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae widely divergent, anterior face unmodified; 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 unmodified. Labium rectangular, fused to sternum, anterior margin not indented at middle, same as sternum in sclerotization; with 3-5 setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, anteromedian tip with backwards folded ridge, same as sternum in sclerotization, backwards folded ridge heavily sclerotized and posteromedian part also slcerotized. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly, frontally narrowed, overlapping carapace, almost reaching highest point of carapace; dorsum soft portions white, without color pattern. Book lung covers large, elliptical, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube medium, ribbed, scuto-pedicel region with straight scutal ridge, scutum extending far dorsal of pedicel, scutal ridge far away of pedicel, with two long setae. 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 with projecting denticles, dorsal scutum embedding narrow tip of abdomen, denticles on dorsal scutum very small. 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 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 stout setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus absent. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Stereo microscope; tibia: each with three; metatarsus: each with one. 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 pale orange; trochanter normal size, unmodified; femur normal size, one to two times as long as trochanter, attaching to patella basally; patella shorter than femur, not enlarged; tibia with two long, strong setae prolaterally, 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; bulb pale orange, stout, spherical, distal part with several dark, plate-like apophyses, thin, translucent apophysis prolaterally.
Xyphinus infaustus, male habitus, dorsal view (image by YK, specimen ID: ---12841)

xyphiinfaumphabd12841YK.tif

Xyphinus infaustus, male habitus, ventral view (image by YK, specimen ID: ---12841)

xyphiinfaumphabv12841YK.tif

Xyphinus infaustus, male habitus, lateral view (image by YK, specimen ID: ---12841)

xyphiinfaumphabl12841YK.tif

Xyphinus infaustus, male carapace, anterior view (image by YK, specimen ID: ---12841)

xyphiinfaumpcara12841YK.tif

Xyphinus infaustus, male abdomen, anterior view (image by YK, specimen ID: ---12841)

xyphiinfaumpabda12841YK.tif

Xyphinus infaustus, male palp, prolateral view (image by YK, specimen ID: ---12841)

xyphiinfaumppalp12841YK.tif

Xyphinus infaustus, male palp, retrolateral view (image by YK, specimen ID: ---12841)

xyphiinfaumppalr12841YK.tif

Xyphinus infaustus, male palp, prolateral view (image by YK, specimen ID: ---12841)

xyphiinfaumdpalp12841YK.tif

Xyphinus infaustus, male palp, ventral view (image by YK, specimen ID: ---12841)

xyphiinfaumdpalv12841YK.tif

Xyphinus infaustus, male palp, retrolateral view (image by YK, specimen ID: ---12841)

xyphiinfaumdpalr12841YK.tif

 

DISTRIBUTION

INDONESIA
Xyphinus infaustus 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 00012841  INDONESIA  Sumatra Bengkulu    Taba Penanjung Reserve, road Taba Penan jung - Kepahiang  1 Adult Male  Holotype  700  -3.80044; 102.26554  evergreen rain forest  27 Feb 2000  P. Schwendinger  MHNG 


 
 
 
 
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