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OONOPIDAE SPECIES DESCRIPTION
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Escaphiella acapulco       Get publication



            Male (PBI_OON 36882). Total length 1.63. 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 granulate, sides granulate, thorax without depressions, fovea absent, surfaces sides of pars cephalica and pars thoracica coarsely granulate almost all over but bearing a few bare spot, anterior half of elevated portion of pars cephalica granulate, posterior half smooth, without radiating rows of pits; lateral margin straight, rebordered, with blunt 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, vertical 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 circular, PME squared, PLE oval; posterior eye row procurved from both above and front; ALE touching, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching. Sternum longer than wide, pale orange, uniform, 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 absent, sickle-shaped structures absent, anterior margin with continuous transverse groove, 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, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae slightly divergent, anterior face unmodified, paturon with anterolateral keel and one large plumose seta on anterior and posterior face at middle of fang base.; fangs directed medially, shape normal, without prominent basal process, tip unmodified; setae dark, needle-like, evenly scattered; paturon inner margin with scattered setae, distal region unmodified. Labium triangular, 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 excavated, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization, anteriorly deeply depressed with transverse ridge. ABDOMEN: ovoid, 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, elliptical, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube medium, scuto-pedicel region with paired curved scutal ridges, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, cuticular outgrowths near pedicel absent, scutal ridge granulate. Dorsal scutum strongly sclerotized, pale orange, without color pattern, covering full length 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, pale orange, long, semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes, lateral side of postepigastric smooth. Spinneret scutum present, incomplete ring. Supra-anal 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. Interscutal membrane with setae. Colulus represented only by setae. Spinnerets: PMS: present as a single median projection. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter than carapace, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi III and IV weak ventral scopula absent. Leg spines absent. Trichobothria examined with Stereo microscope; tibia: each with three; metatarsus: each with one. GENITALIA: Epigastric region with sperm pore large, circular, situated at level of anterior spiracles; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right palp consistently different from left palp, proximal segments pale orange; embolus dark, prolateral excavation absent; trochanter missing on left palp, normal of right palp; femur missing on left palp, normal of right palp; patella missing on left palp, normal of right palp. Longer than tibia; tibia trichobothria with 3 trichobothria; cymbium pale orange, ovoid in dorsal view, completely fused with bulb, no seam visible, extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, stout, tapering apically, prolateral surface with stridulatory file..
Escaphiella acapulco, male abdomen, ventral view (image by ND, specimen ID: ---36882)

Escapacapumpabdv36882ND.tif

Escaphiella acapulco, male carapace, dorsal view (image by ND, specimen ID: ---36882)

Escapacapumpcard36882ND.tif

Escaphiella acapulco, male carapace, lateral view (image by ND, specimen ID: ---36882)

Escapacapumpcarl36882ND.tif

Escaphiella acapulco, male gonopore (male genital area), ventral view (image by ND, specimen ID: ---36882)

Escapacapumpgonv36882ND.tif

Escaphiella acapulco, male habitus, anterior view (image by ND, specimen ID: ---36882)

Escapacapumphaba36882ND.tif

Escaphiella acapulco, male habitus, dorsal view (image by ND, specimen ID: ---36882)

Escapacapumphabd36882ND.tif

Escaphiella acapulco, male habitus, lateral view (image by ND, specimen ID: ---36882)

Escapacapumphabl36882ND.tif

Escaphiella acapulco, male habitus, ventral view (image by ND, specimen ID: ---36882)

Escapacapumphabv36882ND.tif

Escaphiella acapulco, male palp, dorsal view (image by ND, specimen ID: ---36882)

Escapacapumppald36882ND.tif

Escaphiella acapulco, male palp, prolateral view (image by ND, specimen ID: ---36882)

Escapacapumppalp36882ND.tif

Escaphiella acapulco, male palp, retrolateral view (image by ND, specimen ID: ---36882)

Escapacapumppalr36882ND.tif

Escaphiella acapulco, male palp, ventral view (image by ND, specimen ID: ---36882)

Escapacapumppalv36882ND.tif

Escaphiella acapulco, male palp, right, modified, dorsal view (image by ND, specimen ID: ---36882)

Escapacapumppard36882ND.tif

Escaphiella acapulco, male palp, right, modified, prolateral view (image by ND, specimen ID: ---36882)

Escapacapumpparp36882ND.tif

Escaphiella acapulco, male palp, right, modified, retrolateral view (image by ND, specimen ID: ---36882)

Escapacapumpparr36882ND.tif

Escaphiella acapulco, male palp, right, modified, ventral view (image by ND, specimen ID: ---36882)

Escapacapumpparv36882ND.tif

Escaphiella acapulco, male sternum, ventral view (image by ND, specimen ID: ---36882)

Escapacapumpstev36882ND.tif


            Female (PBI_OON 36881). Total length 1.63. As in male except as noted. CEPHALOTHORAX: Carapace surfaces sides of pars cephalica and pars thoracica coarsely granulate almost all over but bearing a few bare spot, anterior half of elevated portion of pars cephalica granulate, posterior half smooth. Mouthparts: Chelicerae paturon with anterolateral keel and one large plumose seta on anterior and posterior face at middle of fang base.. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges, prolateral surface of palpal femur with stridulatory file, palpal tarsus with distal setae forming a distal patch of setae; trichobothria three dorsal trichobothria on tibia.. ABDOMEN: Pedicel ribbed, scuto-pedicel region unmodified. Dorsal scutum absent. Epigastric scutum without lateral joints, anterior part with a granluated ridge along marigins. Postepigastric scutum lateral side of postepigastric smooth. Spinnerets: PMS: present as a single median projection. LEGS: Leg spines absent. Trichobothria examined with Stereo microscope.
Escaphiella acapulco, female abdomen, ventral view (image by ND, specimen ID: ---36881)

Escapacapufpabdv36881ND.tif

Escaphiella acapulco, female booklung covers, lateral view (image by ND, specimen ID: ---36881)

Escapacapufpbocl36881ND.tif

Escaphiella acapulco, female carapace, dorsal view (image by ND, specimen ID: ---36881)

Escapacapufpcard36881ND.tif

Escaphiella acapulco, female carapace, lateral view (image by ND, specimen ID: ---36881)

Escapacapufpcarl36881ND.tif

Escaphiella acapulco, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---36881)

Escapacapufpepiv36881ND.tif

Escaphiella acapulco, female habitus, anterior view (image by ND, specimen ID: ---36881)

Escapacapufphaba36881ND.tif

Escaphiella acapulco, female habitus, dorsal view (image by ND, specimen ID: ---36881)

Escapacapufphabd36881ND.tif

Escaphiella acapulco, female habitus, lateral view (image by ND, specimen ID: ---36881)

Escapacapufphabl36881ND.tif

Escaphiella acapulco, female habitus, ventral view (image by ND, specimen ID: ---36881)

Escapacapufphabv36881ND.tif

Escaphiella acapulco, female sternum, ventral view (image by ND, specimen ID: ---36881)

Escapacapufpstev36881ND.tif

 

DISTRIBUTION

MEXICO
Escaphiella acapulco 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 00036882  MEXICO  Guerrero  None or Unknown  Pie de la Cuesta, 8 mi W Acapulco  1 Adult Male  Holotype    16.91972; -99.99301    29 Jun 1941  L. Davis  AMNH 
PBI_OON 00036881  MEXICO  Guerrero  None or Unknown  Pie de la Cuesta, 8 mi W Acapulco  1 Adult Female      16.91972; -99.99301    29 Jun 1941  L. Davis  AMNH 
PBI_OON 00036408  MEXICO  Guerrero  None or Unknown  Pie de la Cuesta, 8 mi W Acapulco  1 Adult Female      16.91972; -99.99301    29 Jun 1941  L. Davis  AMNH 
PBI_OON 00036884  MEXICO  Guerrero  None or Unknown  65 mi N Acapulco  1 Adult Female      17.79806; -99.91221    18 Jan 1975  C. Rudolph, J. Rowland  AMNH 


 
 
 
 
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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