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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Orchestina kasuku       Get publication



            Male (PBI_OON_0033878). CEPHALOTHORAX: Carapace yellow-brown, with net-shaped pattern, ovoid in dorsal view, pars cephalica slightly 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 absent, carapace surface covered with small platelets in SEM view, in front of PME with semicircular, beak shaped plate with few pores,, 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 needle-like, present, scattered, absent from lateral side; non-marginal pars thoracica setae needle-like; marginal setae absent. Clypeus margin unmodified, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent, wide; setae present, needle-like. Chilum absent. Eyes six, well developed, aLE-PME separated by less than ALE radius, PME largest, all eyes circular; posterior eye row recurved from above, straight from front; ALE separated by more than their diameter, ALE-PLE touching, PME touching throughout most of their length, PLE-PME separated by PME radius to PME diameter. Sternum longer than wide, yellowish white, not fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, surface smooth, without pits, microsculpture absent, sickle-shaped structures absent, anterior margin unmodified, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, anterior corner unmodified, lateral margin without infra-coxal grooves, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins unmodified, without posterior hump, sternum with pattern of tiny sepia spots forming central longitudinal band and vague intercoxal triangles along margin; setae abundant, needle-like, evenly scattered, 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 needle-like, evenly scattered; paturon inner margin with scattered setae, distal region unmodified, posterior surface unmodified, inner margin unmodified. Labium triangular, fused to sternum, anterior margin indented at middle, same as sternum in sclerotization, pear shaped, color pattern of tiny sepia spots forming two oval, adjacent areas near posterior margin; with 6 or more setae on anterior margin, subdistal region provided anteriorly with group of five needle like setae, medially with one pair of large symmetric flattened setae in the centre, followed posteriorly by one pair of large asymmetric flattened setae, positioned in a slightly oblique longitudinal row. Endites distally not excavated, serrula absent, 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, extending anteriad of pedicel, covered dorsally by a sclerotized triangular carapace extension pointing backward; dorsum soft portions pale white, with gray netlike pattern. Book lung covers small, round, without setae, anterolateral edge unmodified, dented. Pedicel tube short, 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, with meshed texture visible in SEM view; covered dorsally by a carapace sclerotized triangular extension pointing backward. Dorsal scutum absent. Epigastric scutum absent. Postepigastric scutum absent. Spinneret scutum absent. Dorsum setae present, needle-like. Epigastric area setae uniform, needle-like. Postepigastric area setae present, needle-like. Spinneret scutum without fringe of setae. Dense patch of setae anterior to spinnerets absent. Colulus represented only by setae. Spinnerets: ALS: two-segmented, with one major ampullate gland spigot and two piriform gland spigots; gland spigots covered by closely spaced ridges; PMS: with one minor ampullate gland spigot;; PLS: with one minor ampullate gland spigot; with two aciniform gland spigots. LEGS: yellow, without color pattern; femur IV thickened, much larger than femora I-III, patella plus tibia I near as long as carapace, tibia I unmodified, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi III and IV weak ventral scopula absent, metatarsi apical part provided with group of small modified setae on prolateral side of leg I, II and III;, tarsi bearing claws with proximal tooth divided itself in three smaller teeth. Leg spines absent. Tarsi I to IV superior claws tooth examined in detail; tarsal proclaws and retroclaws inner face smooth; tarsus I superior claws with seven teeth on lateral surface of proclaw, seven teeth on lateral surface of retroclaw; tarsus IV superior claws with seven teeth on lateral surface of proclaw, seven teeth on lateral surface of retroclaw. Tarsi I to IV without inferior claw. Trichobothria examined with SEM; tibia: each with three; metatarsus: each with one; base rounded, aperture internal texture not grate-like, hood covered by numerous low, closely spaced ridges, located near distal tip on metatarsi I, II and III and at 3/5 length of metatarsus IV. Tarsal organ pear shaped, margin raised above surroundings; with four sensilla visible on tarsi I and II and three sensilla visible on tarsi III and IV; situated at distal end in front of setae on tarsi I, II and III and isolated in middle of tarsus IV. GENITALIA: Epigastric region with sperm pore small, narrow, slit-like, 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 yellow; embolus dark, prolateral excavation absent, long, needle-like, at almost right angle with long axis of bulbus; 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, without prolateral row of ridges, setae unmodified, attached to tibia sub-basally; tibia slightly more than twice as wide as femur, trichobothria not examined; cymbium pale orange, ovoid in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, tarsal organ piriform, with three sensilla, in its retrolateral vicinity with conical outgrowth; bulb pale orange, more than 2 times as long as cymbium, stout, pear shaped.
Orchestina kasuku, male habitus, dorsal view (image by AH, specimen ID: ---33878)

orchekasukmphabd33878AH.tif

Orchestina kasuku, male habitus, lateral view (image by AH, specimen ID: ---33879)

orchekasukmphabl33879AH.tif

Orchestina kasuku, male habitus, ventral view (image by AH, specimen ID: ---33879)

orchekasukmphabv33879AH.tif

Orchestina kasuku, male carapace, lateral view (image by AH, specimen ID: ---33879)

orchekasukmpcarl33879AH.tif

Orchestina kasuku, male palp, prolateral view (image by AH, specimen ID: ---33879)

orchekasukmppalp33879AH.tif

Orchestina kasuku, male palp, retrolateral view (image by AH, specimen ID: ---33879)

orchekasukmppalr33879AH.tif


            Female (PBI_OON_0033881). As in male except as noted. CEPHALOTHORAX: Carapace elongate oval in dorsal view, pars cephalica strongly elevated in lateral view, carapace surface covered with small platelets in SEM view; non-marginal pars cephalica setae absent from lateral side. Clypeus sloping forward in lateral view. Eyes aLE-PME separated by less than ALE radius. Sternum sternum with pattern of tiny sepia spots forming central longitudinal band and vague intercoxal triangles along margin. Labium color pattern with tiny sepia spots delimiting posteriorly two oval, adjacent areas; subdistal portion with unmodified setae. Endites serrula present in single row. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Pedicel with meshed texture visible in SEM view; covered dorsally by sclerotized triangular carapace extension pointing backward. LEGS: Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: with straight, tube shaped structure visible in transparency; in ventral view strongly sclerotized and darker in front; in lateral view clearly folded back over almost its length; anterior part provided with two pits on both sides of tubular structure.
Orchestina kasuku, female epigynum, epigynal area, ventral view (image by AH, specimen ID: ---33882)

orchekasukfpepiv33882AH.tif

Orchestina kasuku, female habitus, dorsal view (image by AH, specimen ID: ---33882)

orchekasukfphabd33882AH.tif

Orchestina kasuku, female habitus, lateral view (image by AH, specimen ID: ---33881)

orchekasukfphabl33881AH.tif

Orchestina kasuku, female habitus, ventral view (image by AH, specimen ID: ---33881)

orchekasukfphabv33881AH.tif

Orchestina kasuku, female habitus, ventral view (image by AH, specimen ID: ---33882)

orchekasukfphabv33882AH.tif

Orchestina kasuku, female abdomen, posterior view (image by AH, specimen ID: ---33882)

orchekasukfpabdt33882AH.tif

 

DISTRIBUTION

DEMOCRATIC REPUBLIC OF THE CONGO
Orchestina kasuku 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 Orchestina kasuku, 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 00033903  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  25 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033904  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  3 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033908  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  2 Adult Male  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033880  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Male  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033883  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033907  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  4 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033140  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033881  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  25 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033879  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Male  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033906  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033964  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Male  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033878  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Male  Holotype    2.11666; 21.73333  Old secondary forest, Canopy  26 Jun 2009  De Bakker D.  MRAC 
PBI_OON 00033882  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  25 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033905  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  2 Adult Male  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 
PBI_OON 00033978  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Mbangi  1 Adult Female  Paratype    2.11666; 21.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D. & Juakaly J.-L.  MRAC 


 
 
 
 
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