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OONOPIDAE SPECIES DESCRIPTION
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Oonopoides mitchelli       Get publication



            Male (PBI_OON 1735). CEPHALOTHORAX: Carapace yellow, without any pattern, elongated hexagonal in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, 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 smooth, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, rebordered, without denticles; plumose setae near posterior margin of pars thoracica absent; non-marginal pars cephalica setae light, needle-like, present, scattered; non-marginal pars thoracica setae light, needle-like; marginal setae light, needle-like. Clypeus margin slightly rebordered, curved downwards in front view, vertical in lateral view, low, ALE separated from edge of carapace by less than their radius, median projection absent; setae present, light, needle-like. Chilum divided. Eyes six, well developed, ALE largest, ALE oval, PME squared, PLE oval; posterior eye row recurved from above, procurved from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius. Sternum longer than wide, yellow, uniform, not fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, furrow wrinkled, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture absent, sickle-shaped structures absent, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV, 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, light, needle-like, densest laterally, originating from surface, 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 light, needle-like, densest medially; paturon inner margin with scattered setae, distal region unmodified, posterior surface unmodified, promargin with row of flattened setae, 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 absent, posteromedian part unmodified, same as sternum in sclerotization, in poor condition but apparently with single, anteromedially situated protuberant ledge and posterolaterally protuberant knob. ABDOMEN: dorsum soft portions missing. LEGS: yellow, without color pattern; 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. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): (leg III: missing, leg IV: missing. ). 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 light, prolateral excavation absent, distal portion of hyaline conductor elongated, sharply pointed; 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 yellow, 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 yellow, 1 to 1.5 times as long as cymbium, stout, middle part constricted.
Oonopoides mitchelli, male embolus, prolateral view (image by LE, specimen ID: ---01735)

Opoidmitchmsembp01735LE.tif

Oonopoides mitchelli, male embolus, ventral view (image by LE, specimen ID: ---01735)

Opoidmitchmsembv01735LE.tif

Oonopoides mitchelli, male embolus, retrolateral view (image by LE, specimen ID: ---01735)

Opoidmitchmsembr01735LE.tif

Oonopoides mitchelli, male endites, ventral view (image by LE, specimen ID: ---01735)

Opoidmitchmsendv01735LE.tif

Oonopoides mitchelli, male endites, modified setae, ventral view (image by LE, specimen ID: ---01735)

Opoidmitchmsemsv01735LE.tif

Oonopoides mitchelli, male sternum, ventral view (image by LE, specimen ID: ---01735)

Opoidmitchmpstev01735LE.tif

Oonopoides mitchelli, male palp, prolateral view (image by LE, specimen ID: ---01735)

Opoidmitchmppalp01735LE.tif

Oonopoides mitchelli, male palp, retrolateral view (image by LE, specimen ID: ---01735)

Opoidmitchmppalr01735LE.tif

Oonopoides mitchelli, male palp, ventral view (image by LE, specimen ID: ---01735)

Opoidmitchmppalv01735LE.tif


            Female (PBI_OON 1736). Total length 1.66. As in male except as noted. CEPHALOTHORAX: Eyes posterior eye row straight from front. Endites serrula present in single row, anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: cylindrical, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions white, without color pattern. Book lung covers large, ovoid, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube short, unmodified, scuto-pedicel region unmodified, scutum absent, but abdomen not extending anterior 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 weakly sclerotized, not surrounding pedicel, not protruding, small lateral sclerites absent, without lateral joints. Postepigastric scutum weakly sclerotized, yellow, short, only around epigastric furrow, not fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Spinneret scutum absent. Dorsum setae present, light, needle-like. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Dense patch of setae anterior to spinnerets absent. Colulus present. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: IV d1-0-0; tibiae: III d0-1-0; p1-0-1; v0-1p-2; r1-0-1; IV d1-0-1; p1-0-1; v0-2-2; r1-0-1; metatarsi: III v0-1p-2; r0-1-0; IV p1-0-1; v1p-2-2; r1-0-1. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: anterior receptaculum with rounded tip on long, narrow stalk; anterior margin of posterior receptaculum deeply invaginated.
Oonopoides mitchelli, female sternum, ventral view (image by LE, specimen ID: ---01736)

Opoidmitchfpstev01736LE.tif

Oonopoides mitchelli, female epigynum, epigynal area, ventral view (image by LE, specimen ID: ---01736)

Opoidmitchfpepiv01736LE.tif

Oonopoides mitchelli, female internal female genitalia, dorsal view (image by LE, specimen ID: ---01736)

Opoidmitchfpifgd01736LE.tif

Oonopoides mitchelli, female internal female genitalia, ventral view (image by LE, specimen ID: ---01736)

Opoidmitchfpifgv01736LE.tif

 

DISTRIBUTION

MEXICO
Oonopoides mitchelli 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 00001735  MEXICO  Yucatan  None or Unknown  1 km South of Muna  1 Adult Male      20.48628; -89.71399    31 Jul 1973  unknown  AMNH 
PBI_OON 00001059  MEXICO  Yucatan  None or Unknown  Actun Xpukil, Entrance Sink  1 Adult Female      20.55122; -89.91236    18 Mar 1973  J. Reddell, S. Murphy, D., M. Mckenzie, M. Butterwick  AMNH 
PBI_OON 00001615  MEXICO  Yucatan  None or Unknown  Actun Xpukil  1 Adult Female  Holotype    20.55122; -89.91236  dry guano  18 Mar 1973  J. Reddell  AMNH 
PBI_OON 00001737  MEXICO  Yucatan  None or Unknown  Pyramid, Izamal  1 Adult Female      20.93371; -89.01625  dry guano  10 Aug 1973  J. Reddell  AMNH 
PBI_OON 00001736  MEXICO  Yucatan  None or Unknown  Hoctun  1 Adult Female      20.86381; -89.20168  dry guano  12 Aug 1973  J. Reddell  AMNH 


 
 
 
 
The American Museum of Natural History, New York, in collaboration with
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The Field Museum of Natural History, Chicago   George Washington University, Washington DC
 
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This material is based upon work supported by the National Science Foundation under Grant No. DEB 0613754. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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