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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Xyphinus xanthus Deeleman-Reinhold, 1987       Get publication


Xyphinus xanthus Deeleman-Reinhold, 1987: 48, f. 23-28 (Dmf).

            Male (PBI_OON 12263). Total length 2.07. 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 angular posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, anterolateral corners with slightly sclerotized triangular projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides granulate, 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, one slightly longer and thicker hair, situated behind the PME, directed anteriorly; non-marginal pars thoracica setae light, needle-like; marginal setae light, needle-like. Clypeus margin unmodified, sinuous 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, for slightly longer and thicker hairs on margin of clypeus, directed anteriorly. Chilum absent. Eyes six, well developed, PME largest, ALE circular, PME oval, PLE oval; posterior eye row procurved from both above and 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, 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 not touching, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV, anterior corner unmodified, distance between coxae approximately equal, extensions of pre-coxal triangles present, 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 with swelling, retrolateral margin with ridges; fangs without tooth-like projections, directed posteriorly, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon inner margin with scattered setae, distal region abruptly narrowed. Labium rectangular, fused to sternum, anterior margin indented at middle, much more heavily sclerotized than sternum, transition between labium and sternum sclerotized; with 3-5 setae on anterior margin, subdistal portion with 1 enlarged seta. Endites distally not excavated, anteromedian tip with backwards folded ridge, much more heavily sclerotized than sternum, posteromedian part strongly sclerotized. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly, frontally strongly narrowed, tip of Abdomen overlapping carapace, almost reaching highest point of carapace. Book lung covers large, elliptical, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube medium, ribbed, scuto-pedicel region with widely oval scutal ridge, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, scuto-pedicel region with few sharply pointed denticles; needle-like hairs originating from these denticles; oval scutal ridge barely visible. 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, dorsal scutum embedding narrow tip of abdomen. 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 long 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 IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi III and IV weak ventral scopula absent, tibiae with one slightly stronger and longer hair on the ventral apex, metatarsi harpoon-like hairs covering the distal part of Metatarsi III and IV. 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, 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, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella basally; patella shorter than femur, not enlarged, setae unmodified, with many granules on prolateral surface (stridulatory function?); tibia with many granules on prolateral surface (stridulatory function?), two sligthly longer hairs in the middle of the prolateral surface, 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, without stout setae, without distal patch of setae; bulb orange-brown, 1 to 1.5 times as long as cymbium, stout, spherical, massiv, with ventral dark plates, divided into distinct lobes, one sharply pointed, one beak-shaped. Ventrally one membraneous apophysis visible (embolus?).
Xyphinus xanthus, male habitus, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthmphabd12263YK.tif

Xyphinus xanthus, male habitus, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthmphabv12263YK.tif

Xyphinus xanthus, male habitus, lateral view (image by YK, specimen ID: ---12263)

Xyphixanthmphabl12263YK.tif

Xyphinus xanthus, male carapace, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthmpcard12263YK.tif

Xyphinus xanthus, male carapace, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthmpcarv12263YK.tif

Xyphinus xanthus, male carapace, lateral view (image by YK, specimen ID: ---12263)

Xyphixanthmpcarl12263YK.tif

Xyphinus xanthus, male carapace, anterior view (image by YK, specimen ID: ---12263)

Xyphixanthmpcara12263YK.tif

Xyphinus xanthus, male abdomen, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthmpabdv12263YK.tif

Xyphinus xanthus, male abdomen, posterior view (image by YK, specimen ID: ---12263)

XyphixanthmpabdT12263YK.tif

Xyphinus xanthus, male palp, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmppalp12263YK.tif

Xyphinus xanthus, male palp, retrolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmppalr12263YK.tif

Xyphinus xanthus, male palp, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthmppalv12263YK.tif

Xyphinus xanthus, male palpal tibia, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmpptip12263YK.tif

Xyphinus xanthus, male chelicerae, retrolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmpcher12263YK.tif

Xyphinus xanthus, male chelicerae, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmpchep12263YK.tif.tif

Xyphinus xanthus, male palp, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmdpalp12263YK.tif

Xyphinus xanthus, male carapace, posterior view (image by YK, specimen ID: ---12263)

XyphixanthmpcarT12263YK.tif

Xyphinus xanthus, male abdomen, anterior view (image by YK, specimen ID: ---12263)

Xyphixanthmpabda12263YK.tif

Xyphinus xanthus, male palp, retrolateral view (image by YK, specimen ID: ---12302)

Xyphixanthmdpalr12302YK.tif

Xyphinus xanthus, male habitus, dorsal view (image by YK, specimen ID: ---12302)

Xyphixanthmphabd12302YK.tif

Xyphinus xanthus, male habitus, ventral view (image by YK, specimen ID: ---12302)

Xyphixanthmphabv12302YK.tif

Xyphinus xanthus, male carapace, anterior view (image by YK, specimen ID: ---12302)

Xyphixanthmpcara12302YK.tif

Xyphinus xanthus, male endites, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthmsendv12263YK.tif

Xyphinus xanthus, male palp, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmspalp12263YK.tif

Xyphinus xanthus, male palpal patella, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthmsppap12263YK.tif

Xyphinus xanthus, male tarsal organ, leg II, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthmsto2d12263YK.tif

Xyphinus xanthus, male tarsal organ, leg IV, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthmsto4d12263YK.tif

Xyphinus xanthus, male palp, prolateral view (image by YK, specimen ID: ---12302)

Xyphixanthmdpalp12302YK.tif

Xyphinus xanthus, male palp, ventral view (image by YK, specimen ID: ---12302)

Xyphixanthmdpalv12302YK.tif


            Female (PBI_OON 12263). Total length 2.17. As in male except as noted. CEPHALOTHORAX: Carapace granulation of carapace surface sides very fine; non-marginal pars cephalica setae one slightly longer and thicker hair, situated behind the PME, directed anteriorly. Clypeus straight in front view, vertical in lateral view; setae for slightly longer and thicker hairs on margin of clypeus, directed anteriorly. Mouthparts: Chelicerae slightly divergent, anterior face unmodified. Endites anteromedian tip unmodified, posteromedian part slightly sclerotized. Female palp claws absent; spines absent; femora with with two strong and long, spinelike hairs ventrally. Tibiae with few spine-like hairs prolaterally; trichobothria tibiae with three trichobothria dorsally. ABDOMEN: frontally strongly narrowed, tip of Abdomen overlapping carapace, almost reaching highest point of carapace; dorsum soft portions white, without color pattern. Pedicel scuto-pedicel region with few sharply pointed denticles; needle-like hairs originating from these denticles. Dorsal scutum dorsal scutum embedding narrow tip of abdomen. Epigastric scutum strongly protruding. Postepigastric scutum not fused to epigastric scutum. LEGS: patella plus tibia I near as long as carapace, tibiae with one slightly stronger and longer hair on the ventral apex, metatarsi harpoon-like hairs covering the distal part of Metatarsi III and IV. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Compound microscope. GENITALIA: Shape: epigastric furrow very narrow. Dark, tongue-like structure visible, strongly projecting, directed posteriorly.
Xyphinus xanthus, female habitus, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthfphabd12263YK.tif

Xyphinus xanthus, female habitus, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthfphabv12263YK.tif

Xyphinus xanthus, female habitus, lateral view (image by YK, specimen ID: ---12263)

Xyphixanthfphabl12263YK.tif

Xyphinus xanthus, female carapace, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthfpcard12263YK.tif

Xyphinus xanthus, female carapace, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthfpcarv12263YK.tif

Xyphinus xanthus, female carapace, lateral view (image by YK, specimen ID: ---12263)

Xyphixanthfpcarl12263YK.tif

Xyphinus xanthus, female carapace, anterior view (image by YK, specimen ID: ---12263)

Xyphixanthfpcara12263YK.tif

Xyphinus xanthus, female abdomen, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthfpabdd12263YK.tif

Xyphinus xanthus, female abdomen, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthfpabdv12263YK.tif

Xyphinus xanthus, female abdomen, lateral view (image by YK, specimen ID: ---12263)

Xyphixanthfpabdl12263YK.tif

Xyphinus xanthus, female epigynum, epigynal area, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthfpepiv12263YK.tif

Xyphinus xanthus, female epigynum, epigynal area, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthfpepid12263YK.tif

Xyphinus xanthus, female abdomen, anterior view (image by YK, specimen ID: ---12263)

Xyphixanthfpabda12263YK.tif

Xyphinus xanthus, female carapace, posterior view (image by YK, specimen ID: ---12263)

XyphixanthfpcarT12263YK.tif

Xyphinus xanthus, female palp, prolateral view (image by YK, specimen ID: ---12263)

Xyphixanthfppalp12263YK.tif

Xyphinus xanthus, female habitus, dorsal view (image by YK, specimen ID: ---12302)

Xyphixanthfphabd12302YK.tif

Xyphinus xanthus, female habitus, ventral view (image by YK, specimen ID: ---12302)

Xyphixanthfphabv12302YK.tif

Xyphinus xanthus, female abdomen, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthfsabdv12263YK.tif

Xyphinus xanthus, female epigynum, epigynal area, ventral view (image by YK, specimen ID: ---12263)

Xyphixanthfsepiv12263YK.tif

Xyphinus xanthus, female epigynum, epigynal area, ventral view (image by YK, specimen ID: ---12302)

Xyphixanthfdepiv12302YK.tif

Xyphinus xanthus, female epigynum, epigynal area, dorsal view (image by YK, specimen ID: ---12302)

Xyphixanthfdepid12302YK.tif

Xyphinus xanthus, female tarsal organ, leg I, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthfsto1d12263YK.tif

Xyphinus xanthus, female tarsal organ, leg III, dorsal view (image by YK, specimen ID: ---12263)

Xyphixanthfsto3d12263YK.tif

 

DISTRIBUTION

MALAYSIA
Xyphinus xanthus 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 Xyphinus xanthus, 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 00031946  MALAYSIA  Sabah    Tamparuli  2 Adult Female  Paratype  75  6.13666; 116.26555  secondary forest, litter  01 Jul 1979  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00012302  MALAYSIA  Sabah    Poring Hot Springs  2 Adult Male    500  6.01388; 116.76911  secondary forest, litter  11 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012330  MALAYSIA  Sabah    Poring Hot Springs  1 Adult Male    575  ;   secondary forest, litter  09 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012257  MALAYSIA  Sabah    Crocker Range, km 60 rte Kota Kinabalu to Tambunan  2 Adult Female    1270  ;   secondary forest, litter  17 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012263  MALAYSIA  Sabah    Crocker Range, km 63 rte Kota Kinabalu-Tambunan  3 Adult Male    1200  5.66600; 116.33330  secondary forest, litter  19 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00031874  MALAYSIA  Sabah    Poring Hot Springs  1 Adult Female    500  6.01388; 116.76911  leaf litter  02 May 1991  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00012317  MALAYSIA  Sabah    Poring Hot Springs  1 Adult Male    500  6.01388; 116.76911  leaf litter  07 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012342  MALAYSIA  Sabah    E Mt. Kinabalu, road between Ranau and Kota Kinabalu  2 Adult Female    1150  5.96666; 116.68333  leaf litter  24 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00031946  MALAYSIA  Sabah    Tamparuli  1 Adult Male  Paratype  75  6.13666; 116.26555  secondary forest, litter  01 Jul 1979  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00031874  MALAYSIA  Sabah    Poring Hot Springs  2 Adult Male    500  6.01388; 116.76911  leaf litter  02 May 1991  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00012317  MALAYSIA  Sabah    Poring Hot Springs  2 Adult Female    500  6.01388; 116.76911  leaf litter  07 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012342  MALAYSIA  Sabah    E Mt. Kinabalu, road between Ranau and Kota Kinabalu  1 Adult Male    1150  5.96666; 116.68333  leaf litter  24 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00031946  MALAYSIA  Sabah    Tamparuli  1 Adult Male  Holotype  75  6.13666; 116.26555  secondary forest, litter  01 Jul 1979  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00031941  MALAYSIA  Sabah    Tuaran  3 Adult Female    450  6.19888; 116.24222  flower litter  01 Jul 1979  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00012302  MALAYSIA  Sabah    Poring Hot Springs  2 Adult Female    500  6.01388; 116.76911  flower litter  11 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012264  MALAYSIA  Sabah    Poring Hot Springs  3 Adult Male    575  ;   flower litter  10 May 1987  D. Burckhardt, I. Löbl  MHNG 
PBI_OON 00012263  MALAYSIA  Sabah    Crocker Range, km 63 rte Kota Kinabalu-Tambunan  10 Adult Female    1200  5.66600; 116.33330  flower litter  19 May 1987  D. Burckhardt, I. Löbl  MHNG 


 
 
 
 
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