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OONOPIDAE SPECIES DESCRIPTION
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Pescennina loreto       Get publication



            Male (PBI_OON 29540). Total length 1.61. CEPHALOTHORAX: Carapace orange-brown, without any pattern, elongate oval in dorsal view, pars cephalica slightly 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 striated, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, rebordered, with sharply pointed 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 slightly rebordered, straight 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, dark, needle-like. Chilum absent. Eyes six, well developed, ALE largest, ALE oval, PME circular, PLE oval; posterior eye row straight from above, procurved from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME separated by less than their radius, PLE-PME separated by PME radius to PME diameter. Sternum longer than wide, pale orange, 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 rugose, without pits, microsculpture everywhere but front, sickle-shaped structures absent, anterior margin with interrupted transverse groove, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, anterior corner unmodified, lateral margin with infra-coxal grooves and anterior and posterior openings, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins with indented extensions between coxae, without posterior hump; setae sparse, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. 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 dark, needle-like, evenly scattered; paturon inner margin with short inter-digitating setae, distal region abruptly narrowed, posterior surface unmodified, promargin unmodified, inner margin unmodified, laminate groove absent. Labium triangular, fused to sternum, anterior margin 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 with stout projection (Brignolia type), posteromedian part unmodified, same as sternum in sclerotization. ABDOMEN: without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly, dorsal scutum with deep depression immediately behind anterior margin; dorsum soft portions white, without color pattern. Book lung covers large, ovoid, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube medium, ribbed, scuto-pedicel region unmodified, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent. Dorsal scutum strongly sclerotized, orange-brown, without color pattern, covering more than 3/4 of abdomen, no soft tissue visible from above, not fused to epigastric scutum, middle surface smooth, sides smooth, anterior half without projecting denticles. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, orange-brown, long, almost rectangular, covering about 3/4 of abdominal length, fused to epigastric scutum, anterior margin unmodified, with short posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, dark, needle-like. Epigastric area setae uniform, dark, needle-like. Postepigastric area setae present, dark, needle-like. Spinneret scutum with fringe of long setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus absent. LEGS: yellow; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter 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, femora i, II with basal darkening on prolateral surface, longitudinal darkening on ventral surface; III, IV with basal portion unmarked but with prolateral and retrolateral sides darkened, patellae iV distally darkened, tibiae iV ventrally darkened. 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 large, oval, situated in front of anterior spiracles, rebordered; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments orange-brown; embolus light, prolateral excavation absent, embolar base skewed medially; 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; tibia trichobothria not examined; cymbium orange-brown, ovoid in dorsal view, completely fused with bulb, no seam visible, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb orange-brown, 1 to 1.5 times as long as cymbium, stout, tapering apically.
Pescennina loreto, male abdomen, ventral view (image by ND, specimen ID: ---29540)

Pesceloretmpabdv29540ND.tif

Pescennina loreto, male carapace, dorsal view (image by ND, specimen ID: ---29540)

Pesceloretmpcard29540ND.tif

Pescennina loreto, male carapace, lateral view (image by ND, specimen ID: ---29540)

Pesceloretmpcarl29540ND.tif

Pescennina loreto, male embolus, prolateral view (image by ND, specimen ID: ---29540)

Pesceloretmpembp29540ND.tif

Pescennina loreto, male embolus, retrolateral view (image by ND, specimen ID: ---29540)

Pesceloretmpembr29540ND.tif

Pescennina loreto, male habitus, anterior view (image by ND, specimen ID: ---29540)

Pesceloretmphaba29540ND.tif

Pescennina loreto, male habitus, dorsal view (image by ND, specimen ID: ---29540)

Pesceloretmphabd29540ND.tif

Pescennina loreto, male habitus, lateral view (image by ND, specimen ID: ---29540)

Pesceloretmphabl29540ND.tif

Pescennina loreto, male habitus, ventral view (image by ND, specimen ID: ---29540)

Pesceloretmphabv29540ND.tif

Pescennina loreto, male palp, prolateral view (image by ND, specimen ID: ---29540)

Pesceloretmppalp29540ND.tif

Pescennina loreto, male palp, retrolateral view (image by ND, specimen ID: ---29540)

Pesceloretmppalr29540ND.tif

Pescennina loreto, male sternum, ventral view (image by ND, specimen ID: ---29540)

Pesceloretmpstev29540ND.tif

Pescennina loreto, male embolus, dorsal view (image by ND, specimen ID: ---29540)

Pesceloretmsembd29540ND.tif


            Female (PBI_OON 519). Total length 2.01. As in male except as noted. CEPHALOTHORAX: Sternum unsclerotized strip narrow but present. Endites anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: cylindrical; dorsum soft portions gray with anterior pair of paramedian white spots, followed posterior by two lateral white spots, then median wide spot, posteriorly with procurved white stripe. Pedicel tube short, unmodified, scutum not extending far dorsal of pedicel. Dorsal scutum absent. Epigastric scutum weakly sclerotized, without lateral joints. Postepigastric scutum weakly sclerotized, yellow, short, only around epigastric furrow, not fused to epigastric scutum. LEGS: femora i, II with basal darkening on prolateral surface, longitudinal darkening on ventral surface; III, IV with basal portion unmarked but with prolateral and retrolateral sides darkened, patellae iV distally darkened, tibiae iV ventrally darkened. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined.
Pescennina loreto, female abdomen, ventral view (image by ND, specimen ID: ---00520)

Pesceloretfpabdv00520ND.tif

Pescennina loreto, female carapace, dorsal view (image by ND, specimen ID: ---00520)

Pesceloretfpcard00520ND.tif

Pescennina loreto, female carapace, lateral view (image by ND, specimen ID: ---00520)

Pesceloretfpcarl00520ND.tif

Pescennina loreto, female habitus, anterior view (image by ND, specimen ID: ---00520)

Pesceloretfphaba00520ND.tif

Pescennina loreto, female habitus, dorsal view (image by ND, specimen ID: ---00520)

Pesceloretfphabd00520ND.tif

Pescennina loreto, female habitus, lateral view (image by ND, specimen ID: ---00520)

Pesceloretfphabl00520ND.tif

Pescennina loreto, female habitus, ventral view (image by ND, specimen ID: ---00520)

Pesceloretfphabv00520ND.tif

Pescennina loreto, female internal female genitalia, dorsal view (image by ND, specimen ID: ---00520)

Pesceloretfpifgd00520ND.tif

Pescennina loreto, female internal female genitalia, ventral view (image by ND, specimen ID: ---00520)

Pesceloretfpifgv00520ND.tif

Pescennina loreto, female sternum, ventral view (image by ND, specimen ID: ---00520)

Pesceloretfpstev00520ND.tif

 

DISTRIBUTION

PERU
Pescennina loreto coordinates
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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 00000219  PERU  Loreto    Pithecia  1 Adult Female      -5.18333; -74.70000  Canopy  01 May 1990  T. Erwin  MUSM 
PBI_OON 00029540  PERU  Loreto    Pithecia  1 Adult Male  Holotype    -5.18333; -74.70000  Canopy  01 May 1990  T. Erwin  MUSM 
PBI_OON 00000520  PERU  Madre de Dios  Provincia Manu  Zona Reservada Pakitza  5 Adult Female    356  -11.93333; -71.28333  Canopy  01 Jun 1992  T. Erwin, D. Silva  MUSM 
PBI_OON 00000521  PERU  Madre de Dios  Provincia Manu  Zona Reservada Pakitza  1 Adult Female    356  -11.93333; -71.28333  Canopy  01 Jun 1992  T. Erwin, D. Silva  MUSM 
PBI_OON 00000522  PERU  Madre de Dios  Provincia Manu  Zona Reservada Pakitza  1 Adult Male    356  -11.93333; -71.28333  Canopy  01 Jun 1992  T. Erwin, D. Silva  MUSM 


 
 
 
 
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