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OONOPIDAE SPECIES DESCRIPTION
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Dalmasula tsumkwe       Get publication



            Male (PBI_OON 33771). Total length 2.68. CEPHALOTHORAX: Carapace yellow, with dark patch around eye area, pyriform 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 straight, smooth, 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 unmodified, 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, PME largest, ALE oval, PME squared, PLE oval; 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 throughout most of their length, PLE-PME separated by PME radius to PME diameter. Sternum wider than long, yellow, uniform, not 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, lateral margin without infra-coxal grooves, distance between coxae approximately equal, extensions of pre-coxal triangles present, lateral margins unmodified, without posterior hump; setae sparse, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium yellow. Chelicerae straight, anterior face with conical apophysis; promargin with one tooth, retromargin without teeth; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae dark, needle-like, evenly scattered; paturon inner margin with scattered setae, distal region unmodified, posterior surface unmodified, promargin unmodified, inner margin unmodified, laminate groove absent. Labium triangular, not fused to sternum, anterior margin not indented at middle, same as sternum in sclerotization; with 6 or more setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, serrula present in single row, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization. ABDOMEN: globular, 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, unmodified, scuto-pedicel region unmodified, scutum absent, but abdomen extending anteriad of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent. Dorsal scutum absent. Epigastric scutum absent. Postepigastric scutum absent. Spinneret scutum absent. Dorsum setae present, light, needle-like. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Dense patch of setae anterior to spinnerets absent. Colulus present, wide, triangular, hirsute. Spinnerets: ALS: with transverse ventral sclerotized, setose strip separated from large segment by unsclerotized cuticle. LEGS: yellow, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I longer 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 spination (only surfaces bearing spines listed, all spines longer than segment width): tibiae: IV p0-0-1; v0-0-1p; r0-0-1; metatarsi: I, II v0-0-2; III v0-0-2; IV p1-2-1; v1p-2-2; r0-0-1. 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 not visible; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments yellow; embolus dark, prolateral excavation absent, only slightly longer than conductor, conductor sclerotized. almost fused with embolus except at tip; 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, slightly larger than femur, without prolateral row of ridges, setae unmodified; tibia trichobothria not examined; cymbium yellow, narrow in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb yellow, more than 2 times as long as cymbium, stout, tapering apically.
Dalmasula tsumkwe, male carapace, anterior view (image by ND, specimen ID: ---33771)

Dalmatsumkmpcara33771ND.tif

Dalmasula tsumkwe, male carapace, dorsal view (image by ND, specimen ID: ---33771)

Dalmatsumkmpcard33771ND.tif

Dalmasula tsumkwe, male carapace, lateral view (image by ND, specimen ID: ---33771)

Dalmatsumkmpcarl33771ND.tif

Dalmasula tsumkwe, male palp, prolateral view (image by ND, specimen ID: ---33771)

Dalmatsumkmppalp33771ND.tif

Dalmasula tsumkwe, male palp, retrolateral view (image by ND, specimen ID: ---33771)

Dalmatsumkmppalr33771ND.tif

Dalmasula tsumkwe, male sternum, ventral view (image by ND, specimen ID: ---33771)

Dalmatsumkmpstev33771ND.tif

Dalmasula tsumkwe, male embolus, prolateral view (image by ND, specimen ID: ---33771)

Dalmatsumkmpembp33771ND.tif

Dalmasula tsumkwe, male embolus, retrolateral view (image by ND, specimen ID: ---33771)

Dalmatsumkmpembr33771ND.tif


            Female (PBI_OON 33771). Total length 3.18. As in male except as noted. CEPHALOTHORAX: Female palp claws absent; spines present, formula: tibia p0-1-2; tarsus p0-1-2, v0-1-2, r0-2-2; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Epigastric scutum weakly sclerotized, not surrounding pedicel, not protruding, small lateral sclerites absent, without lateral joints. Postepigastric scutum weakly sclerotized, yellow, short, almost rectangular, only around epigastric furrow, not fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Colulus wide, triangular, hirsute. Spinnerets: ALS: with transverse ventral sclerotized, setose strip separated from large segment by unsclerotized cuticle. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): tibiae: III p0-1-1; IV p0-1-1; v0-0-2; r0-0-1; metatarsi: I v0-0-1p; II p0-0-1; v0-0-2; III v0-0-2; IV p0-2-2; v1p-1p-2; r0-1-1. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Ventral view: anterior edge of weak epigastric scutum with pair of paramedian, sharply recurved ridges.
Dalmasula tsumkwe, female abdomen, ventral view (image by ND, specimen ID: ---33771)

Dalmatsumkfpabdv33771ND.tif

Dalmasula tsumkwe, female carapace, anterior view (image by ND, specimen ID: ---33771)

Dalmatsumkfpcara33771ND.tif

Dalmasula tsumkwe, female carapace, dorsal view (image by ND, specimen ID: ---33771)

Dalmatsumkfpcard33771ND.tif

Dalmasula tsumkwe, female carapace, lateral view (image by ND, specimen ID: ---33771)

Dalmatsumkfpcarl33771ND.tif

Dalmasula tsumkwe, female internal female genitalia, dorsal view (image by ND, specimen ID: ---33771)

Dalmatsumkfpifgd33771ND.tif

Dalmasula tsumkwe, female internal female genitalia, ventral view (image by ND, specimen ID: ---33771)

Dalmatsumkfpifgv33771ND.tif

Dalmasula tsumkwe, female colulus, ventral view (image by ND, specimen ID: ---33771)

Dalmatsumkfpcolv33771ND.tif

 

DISTRIBUTION

NAMIBIA
Dalmasula tsumkwe 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 00033771  NAMIBIA  Otjozondjupa    CDM Camp at Tsumkwe, Bushmanland  2 Adult Female      -19.58383; 20.49864    01 May 1993  S. Green  NMNW 
PBI_OON 00033771  NAMIBIA  Otjozondjupa    CDM Camp at Tsumkwe, Bushmanland  1 Adult Male  Holotype    -19.58383; 20.49864    01 May 1993  S. Green  NMNW 


 
 
 
 
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