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OONOPIDAE SPECIES DESCRIPTION
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Orchestina jaiba       Get publication



            Male (PBI_OON 14871). Total length 1.09. CEPHALOTHORAX: Carapace pale orange, without any pattern, ovoid in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, 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 absent. Clypeus margin unmodified, curved downwards 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, posterior eye row slightly recurved in front view, PLE largest, ALE circular, PME oval, PLE circular; posterior eye row recurved from above; 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, 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 smooth, without pits, microsculpture covering entire surface, 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; setae sparse, dark, needle-like, evenly scattered, 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, evenly scattered; paturon inner margin with scattered setae, distal region unmodified, posterior surface unmodified, inner margin unmodified. Labium rectangular, 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: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions pale white, with lateral bands of purple pigment. Book lung covers large, round, without setae, anterolateral edge unmodified. Posterior spiracles not connected by groove. Pedicel tube medium, with fringe of setae, 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, dark, needle-like. Epigastric area setae uniform, dark, needle-like. Postepigastric area setae present, dark, needle-like. Spinneret scutum with fringe of needle-like setae. Dense patch of setae anterior to spinnerets absent. Colulus present. LEGS: pale orange, 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 I Emerit’s glands absent, 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 spines absent. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria examined with Stereo microscope; metatarsus: each with one. 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 pale orange; embolus dark, prolateral excavation absent; 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 pale orange, ovoid 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 pale orange, more than 2 times as long as cymbium, stout, spherical.

            Female (PBI_OON 14808). Total length 1.5. As in male except as noted. CEPHALOTHORAX: Eyes posterior eye row slightly recurved in front view, PME largest. Sternum as long as wide. Mouthparts: paturon laminate groove absent. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: dorsum soft portions without color pattern. Epigastric scutum weakly sclerotized, not surrounding pedicel, not protruding, small lateral sclerites absent, without lateral joints. LEGS: Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Stereo microscope; tibia: III three, IV three.
Orchestina jaiba, female habitus, lateral view (image by MI, specimen ID: ---14808)

ORCHEJAIBAfphabl14808MI.tif

Orchestina jaiba, female habitus, anterior view (image by MI, specimen ID: ---14808)

ORCHEJAIBAfphaba14808MI.tif

Orchestina jaiba, female habitus, dorsal view (image by MI, specimen ID: ---14808)

ORCHEJAIBAfphabd14808MI.tif

Orchestina jaiba, female internal female genitalia, ventral view (image by MI, specimen ID: ---14808)

ORCHEJAIBAfdifgv14808MI.tif

 

DISTRIBUTION

ARGENTINA ; CHILE
Orchestina jaiba 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 jaiba, Discover Life Map
 

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 00015058  ARGENTINA  Rio Negro  El Bolsón  Reserva Forestal Loma del Medio  2 Juvenile sex unknown      -41.94388; -71.56361    01 Feb 2002  Paula Sackmann  MACN 
PBI_OON 00015058  ARGENTINA  Rio Negro  El Bolsón  Reserva Forestal Loma del Medio  2 Adult Male  Paratype    -41.94388; -71.56361    01 Feb 2002  Paula Sackmann  MACN 
PBI_OON 00015061  ARGENTINA  Rio Negro  El Bolsón  Reserva Forestal Loma del Medio  1 Adult Female      -41.94388; -71.56361    01 Jan 2004  Paula Sackmann  MACN 
PBI_OON 00042188  ARGENTINA  Rio Negro    P.N. Nahuel Haupi, sendero a Cerro La Mona, cerca de Lago Espejo Chico  1 Adult Female    840  -40.59083; -71.70417    05 Jan 2011  M. J. Ramírez & V. Werenkraut  MACN 
PBI_OON 00042188  ARGENTINA  Rio Negro    P.N. Nahuel Haupi, sendero a Cerro La Mona, cerca de Lago Espejo Chico  1 Adult Male    840  -40.59083; -71.70417    05 Jan 2011  M. J. Ramírez & V. Werenkraut  MACN 
PBI_OON 00042153  ARGENTINA  Rio Negro    Nahuel Huapi N. Park, peatbog next to Frías lake  1 Adult Female    772  -41.04055; -71.80527    29 Dec 2010  M. Ramírez, V. Werenkraut, S. Aisen  MACN 
PBI_OON 00051195  ARGENTINA  Rio Negro    San Carlos de Bariloche, Parque Municipal Llao Llao sendero a Villa Tacul  2 Adult Female  Paratype  841  -41.04389; -71.54944    15 Jan 2012  M. Guala  MACN 
PBI_OON 00042251  ARGENTINA  Rio Negro    San Carlos de Bariloche, Parque Municipal Llao Llao sendero a Villa Tacul  1 Adult Female    841  -41.04389; -71.54944    15 Jan 2012  M. Guala  MACN 
PBI_OON 00014858  CHILE  Malleco  Región de la Araucanía  Nahuelbuta Natl. Pk.  1 Adult Female  Holotype  1100  -37.82750; -73.00888  Nothofagus & Araucaria forest  12 Feb 2005  M. Ramírez & F. Labarque  MACN 
PBI_OON 00014808  CHILE  Osorno  Región IX  Natl. Pk. Puyehue, Aguas calientes  1 Juvenile sex unknown    340  ;   Nothofagus & Araucaria forest  13 Dec 1998  M. Ramírez, L. Compagnucci, C. Grismado, L. Lopardo  MACN 
PBI_OON 00014808  CHILE  Osorno  Región IX  Natl. Pk. Puyehue, Aguas calientes  2 Adult Female  Paratype  340  ;   Nothofagus & Araucaria forest  13 Dec 1998  M. Ramírez, L. Compagnucci, C. Grismado, L. Lopardo  MACN 
PBI_OON 00043290  CHILE  Región de la Araucanía  Provincia de Cautín  P. N. Conguillio, 11.1 km SE Laguna Captrén guard sta.  1 Adult Female    1080  -38.66750; -71.62016  Nothofagus obliqua, alpina, dense Chusquea  23 Dec 1996  A. Newton, M. Thayer  FMNH 
PBI_OON 00002305  CHILE  Región de la Araucanía  Provincia de Cautín  P. N. Huerquehue, exit  1 Adult Male    823  -39.16944; -71.72638  Nothofagus dombeyi  11 Dec 2001  E. Arias et al.  CAS 
PBI_OON 00043295  CHILE  Región de Los Lagos  Provincia de Osorno  Parque Nacional Puyehue, Aguas Calientes  1 Adult Female      ;   Nothofagus dombeyi  13 Dec 1998  M. Ramírez, L. Compagnucci, C. Grismado, L. Lopardo  MNSC 
PBI_OON 00002310  CHILE  Región del Maule  Provincia de Curicó  El Coihue, 20 km E Potrero Grande  1 Adult Female    1000  -35.18776; -70.97105  Nothofagus dombeyi  01 Apr 2003  J. E. Barriga  CAS 


 
 
 
 
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