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



            Male (PBI_OON 33895). CEPHALOTHORAX: Carapace yellow-brown, with net-shaped pattern, elongate 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 absent, carapace surface covered with small platelets in SEM view, 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, sloping forward in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent, very narrow in dorsal view; setae present, needle-like. Chilum absent. Eyes six, well developed, aLE-PME touching, PME largest, ALE circular, PME squared, PLE 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 less than PME radius. Sternum longer than wide, yellow-brown, not fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, surface smooth, without pits, sickle-shaped structures absent, 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, anterior margin straight, anterior corners angular; color pattern with tiny dark sepia spots forming dark stripes radiating from anterior half of sternum; 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, inner margin unmodified. Labium anterior margin not indented at middle, spade-shaped, posterior part slightly narrowed, fused to sternum; central part slightly sclerotised, with strongly procurved, sclerotised posterior and lateral margins; anterior margin triangular ending in narrow pointed prong, surrounded by distal membranous part; with 6 or more setae on anterior margin, subdistal portion with unmodified setae, anteriorly with three aligned setae, central part with four setae in a diamond shaped pattern. Endites distally not excavated, serrula present in single row, anteromedian tip with one strong, tooth-like projection, posteromedian part unmodified, much more heavily sclerotized than sternum, anterior part bifid, one prong with sclerotized truncate tip, one with flattened, pectinate setae. ABDOMEN: globular, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions pale white, with dark posterior end. Book lung covers small, without setae, anterolateral edge unmodified. 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, covered dorsally by sclerotized, triangular carapace extension, pointing backward; meshed texture visible in SEM view;. 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. Dense patch of setae anterior to spinnerets absent. Colulus represented only by setae. LEGS: yellow, without color pattern; femur IV thickened, much larger than 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 III and IV weak ventral scopula absent. Leg spines absent. 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, strong, almost as wide as base of femur, at an angle of about 100° with longitudinal axis of bulbus, compressed laterally, with dorsal transparent ridge, ending in two spinose extensions, dorsal one divided itself in two small spines; trochanter normal size, unmodified; femur normal size, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella basally, narrowed at base, with ventral groove; patella shorter than femur, not enlarged, without prolateral row of ridges, setae unmodified, attached to tibia basally; tibia twice as wide as femur, trichobothria not examined; cymbium yellow, ovoid in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, tapered towards tip, setae densest on prolateral face; bulb white, more than 2 times as long as cymbium, stout, spherical.
Orchestina saaristoi, male habitus, dorsal view (image by AH, specimen ID: ---33895)

orchesaarimphabd33895AH.tif

Orchestina saaristoi, male habitus, lateral view (image by AH, specimen ID: ---33895)

orchesaarimphabl33895AH.tif

Orchestina saaristoi, male habitus, ventral view (image by AH, specimen ID: ---33895)

orchesaarimphabv33895AH.tif

Orchestina saaristoi, male endites, ventral view (image by AH, specimen ID: ---33895)

orchesaarimpendv33895AH.tif

Orchestina saaristoi, male palp, anterior view (image by AH, specimen ID: ---33895)

orchesaarimppala33895AH.tif

Orchestina saaristoi, male palp, prolateral view (image by AH, specimen ID: ---33895)

orchesaarimppalp33895AH.tif

Orchestina saaristoi, male palp, retrolateral view (image by AH, specimen ID: ---33895)

orchesaarimppalr33895AH.tif

Orchestina saaristoi, male embolus, retrolateral view (image by AH, specimen ID: ---33895)

orchesaarimpembr33895AH.tif


            Female (PBI_OON 33960). As in male except as noted. CEPHALOTHORAX: Carapace carapace surface covered with small platelets in SEM view; non-marginal pars cephalica setae absent from lateral side. Clypeus very narrow in dorsal view. Eyes aLE-PME touching. Sternum anterior margin with continuous transverse groove, anterior part slightly depressed medially, with tiny dark sepia spots forming dark stripes radiating from anterior half of sternum. Labium fused to sternum, rounded, with sclerotised posterior and lateral margins. Endites anteromedian tip unmodified. Female palp claws absent; spines present, formula: tarsus p1-1-0; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Pedicel covered dorsally by sclerotized, triangular carapace extension, pointing backward; meshed texture visible in SEM view;. Epigastric area frontal setae thickened, with numerous scattered setae. Spinneret scutum without fringe of setae. LEGS: patella plus tibia I near as long as carapace. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: epigyne area slightly sclerotized, anterior part bell shaped, with poorly delimited, darker longitudinal match shaped structure, visible in transparency, crossing epigastric fold, reaching posterior spiracle, posterior part with procurved, arc shaped margin.
Orchestina saaristoi, female habitus, dorsal view (image by AH, specimen ID: ---33896)

orchesaarifphabd33896AH.tif

Orchestina saaristoi, female habitus, lateral view (image by AH, specimen ID: ---33896)

orchesaarifphabl33896AH.tif

Orchestina saaristoi, female habitus, ventral view (image by AH, specimen ID: ---33896)

orchesaarifphabv33896AH.tif

Orchestina saaristoi, female epigynum, epigynal area, ventral view (image by AH, specimen ID: ---33896)

orchesaarifpepiv33896AH.tif

 

DISTRIBUTION

DEMOCRATIC REPUBLIC OF THE CONGO ; NIGERIA
Orchestina saaristoi 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 saaristoi, 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 00033954  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  2 Adult Female  Paratype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Mar 2009  De Bakker D.  MRAC 
PBI_OON 00033956  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  1 Adult Male  Paratype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Mar 2009  De Bakker D.  MRAC 
PBI_OON 00033565  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  1 Adult Male  Paratype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Mar 2009  De Bakker D.  MRAC 
PBI_OON 00033957  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  2 Adult Male  Paratype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Mar 2009  De Bakker D.  MRAC 
PBI_OON 00033896  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  1 Adult Female  Paratype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Jun 2009  De Bakker D.  MRAC 
PBI_OON 00033165  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  1 Adult Male  Holotype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  30 Jul 2009  De Bakker D.  MRAC 
PBI_OON 00033958  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  2 Adult Female  Paratype    1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Mar 2009  De Bakker D.  MRAC 
PBI_OON 00033895  DEMOCRATIC REPUBLIC OF THE CONGO  Bandundu    Basoko  1 Adult Male      1.23333; 23.60000  Old palm plantation, 60 years old, Canopy  07 Jun 2009  De Bakker D.  MRAC 
PBI_OON 00033959  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.  MRAC 
PBI_OON 00033960  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.  MRAC 
PBI_OON 00033961  DEMOCRATIC REPUBLIC OF THE CONGO  Equateur    Monzé (Engengele)  1 Adult Female  Paratype    2.03333; 22.73333  Old secondary forest, Canopy  23 Jun 2009  De Bakker D.  MRAC 
PBI_OON 00029231  NIGERIA  Borno    Ibadan, IITA site  1 Adult Male      7.23333; 3.50000  Old secondary forest, Canopy  02 Aug 1981  Russell-Smith, A.  MRAC 
PBI_OON 00029231  NIGERIA  Borno    Ibadan, IITA site  1 Adult Female      7.23333; 3.50000  Old secondary forest, Canopy  02 Aug 1981  Russell-Smith, A.  MRAC 


 
 
 
 
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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