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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Orchestina utahana Chamberlin & Ivie, 1935       Get publication


Orchestina utahana Chamberlin & Ivie, 1935b: 10 (Dmf).

            Male (PBI_OON 51099). Total length 1.24. 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, high, ALE separated from edge of carapace by their radius or more, median projection absent, slightly sloping forward; setae present, dark, needle-like. Chilum absent. Eyes six, well developed, posterior eye row slightly recurved in front view, PME 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, with a dark stripe in the anterior median half; 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, promargin with conical projections; 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, inner margin unmodified, laminate groove absent. 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 absent, 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 gray netlike pattern. 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 long setae. Dense patch of setae anterior to spinnerets absent. Colulus present. 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 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.
Orchestina utahana, male habitus, dorsal view (image by MI, specimen ID: ---01076)

ORCHEUTAHAmphabd01076MI.tif

Orchestina utahana, male habitus, dorsal view (image by MI, specimen ID: ---51099)

ORCHEUTAHAmphabd51099MI.tif

Orchestina utahana, male habitus, ventral view (image by MI, specimen ID: ---01076)

ORCHEUTAHAmphabv01076MI.tif

Orchestina utahana, male habitus, lateral view (image by MI, specimen ID: ---01076)

ORCHEUTAHAmphabl01076MI.tif

Orchestina utahana, male habitus, ventral view (image by MI, specimen ID: ---51099)

ORCHEUTAHAmphabv51099MI.tif

Orchestina utahana, male palp, dorsal view (image by MI, specimen ID: ---01076)

ORCHEUTAHAmppald01076MI.tif

Orchestina utahana, male palp, prolateral view (image by MI, specimen ID: ---01076)

ORCHEUTAHAmppalp01076MI.tif

Orchestina utahana, male palp, retrolateral view (image by MI, specimen ID: ---01076)

ORCHEUTAHAmppalr01076MI.tif


            Female (PBI_OON 51099). Total length 1.19. As in male except as noted. CEPHALOTHORAX: Carapace with angular posterolateral corners, see material additional for pattern of coloration. Clypeus sloping forward in lateral view. Eyes posterior eye row slightly recurved in front view. Endites serrula present in single row. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: cylindrical; dorsum soft portions coloration analyzed in additional material female paratype with a white coloration and without pattern. Book lung covers very narrow. Epigastric scutum weakly sclerotized, not surrounding pedicel, not protruding, small lateral sclerites absent, without lateral joints. LEGS: coxae left legs I and II absent. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Stereo microscope.
Orchestina utahana, female habitus, dorsal view (image by MI, specimen ID: ---01107)

ORCHEutahafphabd01107MI.tif

Orchestina utahana, female habitus, lateral view (image by MI, specimen ID: ---01107)

ORCHEutahafphabl01107MI.tif

Orchestina utahana, female habitus, ventral view (image by MI, specimen ID: ---01107)

ORCHEutahafphabv01107MI.tif

Orchestina utahana, female habitus, dorsal view (image by MI, specimen ID: ---51099)

ORCHEutahafphabd51099MI.tif

Orchestina utahana, female habitus, ventral view (image by MI, specimen ID: ---51099)

ORCHEutahafphabv51099MI.tif

Orchestina utahana, female internal female genitalia, ventral view (image by MI, specimen ID: ---01459)

ORCHEutahafdifgv01459MI.tif

Orchestina utahana, female internal female genitalia, lateral view (image by MI, specimen ID: ---01459)

ORCHEutahafdifgl01459MI.tif

 

DISTRIBUTION

MEXICO ; USA
Orchestina utahana 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 utahana, 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 00001325  MEXICO  Baja California  None or Unknown  40 mi. S Tecate in oak grove  1 Adult Female      ;     10 Nov 1957  V. Roth  AMNH 
PBI_OON 00001107  USA  California  Los Angeles  Santa Monica Mountains  1 Adult Female      34.08333; -118.75000    22 Feb 1952  W. McDonald  AMNH 
PBI_OON 00001081  USA  California  Siskiyou  9 mi of SW Tulelake  3 Adult Female      41.86666; -121.56666    15 Sept 1965  J., W. Ivie  AMNH 
PBI_OON 00001126  USA  California  Siskiyou  Willow Creek  1 Adult Male      41.00000; -123.00000    14 Jul 1937  R. Chamberlin  AMNH 
PBI_OON 00001081  USA  California  Siskiyou  9 mi of SW Tulelake  3 Adult Male      41.86666; -121.56666    15 Sept 1965  J., W. Ivie  AMNH 
PBI_OON 00001124  USA  California  Sonoma  2 min. W Petrified Forest  1 Adult Female      ;     25 Oct 1959  J. Buckett  AMNH 
PBI_OON 00001111  USA  California  Tulare  6 min. W of Johnsondale  1 Adult Female      ;     15 Sept 1959  W. Gertsch, V. Roth  AMNH 
PBI_OON 00001130  USA  California  Unknown  Arrowhead Lake  1 Adult Female      ;     06 May 1936  unknown  AMNH 
PBI_OON 00001317  USA  California  Unknown  Weott ( Redwood Grove)  2 Adult Male      ;     21 Sept 1964  J., W. Ivie  AMNH 
PBI_OON 00001134  USA  California  Unknown  Riverside  1 Adult Female      ;     10 Oct 1956  A. Nadler  AMNH 
PBI_OON 00001120  USA  California  Unknown  San Gabriel Mts. Big Rock Camp  1 Adult Male      ;     09 Apr 1955  R. Schick  AMNH 
PBI_OON 00001130  USA  California  Unknown  Arrowhead Lake  1 Adult Male      ;     06 May 1936  unknown  AMNH 
PBI_OON 00042816  USA  Nevada  unknown  20 mi. E. Reno  9 Juvenile sex unknown      39.52250; -119.43806    06 Aug 1935  W. Ivie & R.V. Chamberlin  MCZ 
PBI_OON 00042816  USA  Nevada  unknown  20 mi. E. Reno  2 Adult Female      39.52250; -119.43806    06 Aug 1935  W. Ivie & R.V. Chamberlin  MCZ 
PBI_OON 00010015  USA  New Mexico  Los Alamos  Los Alamos mortandad Canyon  1 Adult Female    ;     25 Jun 1976  D. Lowrie  FMNH 
PBI_OON 00042831  USA  New Mexico    Santa Fe´  1 Juvenile sex unknown    2136  35.68639; -105.93806      Chamberlin & Ivie  AMNH 
PBI_OON 00042831  USA  New Mexico    Santa Fe´  3 Adult Female    2136  35.68639; -105.93806      Chamberlin & Ivie  AMNH 
PBI_OON 00001454  USA  New Mexico  unknown  12 miles N. of Albuquerque  6 Adult Male      ;     04 Oct 1965  unknown  AMNH 
PBI_OON 00001454  USA  New Mexico  unknown  12 miles N. of Albuquerque  1 Juvenile sex unknown      ;     04 Oct 1965  unknown  AMNH 
PBI_OON 00026476  USA  Oregon  Benton  10 mi N of Corvallis  1 Adult Male      44.70928; -123.26083    20 Feb 1949  Frank Beer  MCZ 
  USA  Oregon  Benton  10 mi N of Corvallis  1 Adult sex unknown  none    44.70928; -123.26083    20 Feb 1949  Frank Beer  MCZ 
PBI_OON 00001659  USA  Oregon  Douglas  Beside Cleaveland Hill Cementary  1 Adult Male    500  ;     07 Feb 1972  E. Benedict  AMNH 
PBI_OON 00042586  USA  Utah    Utah Lake, west shore at heron rookery  4 Adult Female  Paratype  1437  40.16667; -111.95000    08 Apr 1934  Wilton Ivie  AMNH 
PBI_OON 00042586  USA  Utah    Utah Lake, west shore at heron rookery  3 Adult Male  Paratype  1437  40.16667; -111.95000    08 Apr 1934  Wilton Ivie  AMNH 
PBI_OON 00042823  USA  Utah    W. side Utah Lake  1 Adult Female      40.23778; -111.88306    24 Sept 1939  B. Mulaik  MCZ 
PBI_OON 00001458  USA  Utah  unknown  Spanish Fork Canyon  1 Adult Male      40.08384; -111.59600    02 Nov 1951  R. Chamberlin, W. Ivie  AMNH 
PBI_OON 00042819  USA  Utah  unknown  Bluff  1 Adult Female      37.28444; -109.55250    11 May 1933  W. Ivie  MCZ 
PBI_OON 00042819  USA  Utah  unknown  Bluff  1 Adult Male      37.28444; -109.55250    11 May 1933  W. Ivie  MCZ 
PBI_OON 00001460  USA  Utah  Utah  West side of Utah Lake  2 Juvenile sex unknown      ;     08 Apr 1934  A., W. Ivie  MACN 
PBI_OON 00051099  USA  Utah  Utah  west shore of Utah Lake  1 Adult Male  Holotype    40.23389; -111.90361  cottonwood leaves  01 Apr 1934  W. Ivie  AMNH 
PBI_OON 00001460  USA  Utah  Utah  West side of Utah Lake  2 Adult Female      ;   cottonwood leaves  08 Apr 1934  A., W. Ivie  MACN 
PBI_OON 00001459  USA  Utah  Utah  West side of Utah Lake  4 Adult Female      ;   cottonwood leaves  13 May 1934  A., W. Ivie  AMNH 
PBI_OON 00001460  USA  Utah  Utah  West side of Utah Lake  4 Adult Male      ;   cottonwood leaves  08 Apr 1934  A., W. Ivie  MACN 
PBI_OON 00051099  USA  Utah  Utah  west shore of Utah Lake  1 Adult Female  Allotype    40.23389; -111.90361  cottonwood leaves  01 Apr 1934  W. Ivie  AMNH 
PBI_OON 00001076  USA  Utah  Wasatch  Wasatch  1 Adult Male      40.00000; -111.00000  cottonwood leaves    unknown  AMNH 
PBI_OON 00001076  USA  Utah  Wasatch  Wasatch  1 Adult Female      40.00000; -111.00000  cottonwood leaves    unknown  AMNH 
PBI_OON 00026474  USA  Wyoming  Albany  17 mi. SW of Laramie  1 Adult Female    2400  41.13697; -105.82246  cottonwood leaves  05 Jul 1960  B. Patterson  MCZ 


 
 
 
 
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