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OONOPIDAE SPECIES DESCRIPTION
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Escaphiella aratau       Get publication



            Male (PBI_OON 29523). 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 granulate, thorax without depressions, fovea absent, granulate microsculpture mostly along margins, reaching half carapace sides, 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, serrula absent, posteromedian part unmodified, same as sternum in sclerotization, anteriorly deeply depressed, with transverse ridge. Anteromedian part modified ,tip spine-like. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions white, striped pigmentation under dorsal scuta. 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, 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 scutum 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: pMS present (seen under compound microscope). 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 Compound 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 and left palps symmetrical, proximal segments pale orange; embolus dark, prolateral excavation absent; trochanter normal size, unmodified; femur enlarged, 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 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 aratau, male abdomen, anterior view (image by ND, specimen ID: ---29523)

Escaparatampabda29523ND.tif

Escaphiella aratau, male abdomen, lateral view (image by ND, specimen ID: ---29523)

Escaparatampabdl29523ND.tif

Escaphiella aratau, male abdomen, ventral view (image by ND, specimen ID: ---29523)

Escaparatampabdv29523ND.tif

Escaphiella aratau, male carapace, dorsal view (image by ND, specimen ID: ---29523)

Escaparatampcard29523ND.tif

Escaphiella aratau, male carapace, lateral view (image by ND, specimen ID: ---29523)

Escaparatampcarl29523ND.tif

Escaphiella aratau, male endites, lateral view (image by ND, specimen ID: ---29523)

Escaparatampendl29523ND.tif

Escaphiella aratau, male habitus, anterior view (image by ND, specimen ID: ---29523)

Escaparatamphaba29523ND.tif

Escaphiella aratau, male habitus, dorsal view (image by ND, specimen ID: ---29523)

Escaparatamphabd29523ND.tif

Escaphiella aratau, male habitus, lateral view (image by ND, specimen ID: ---29523)

Escaparatamphabl29523ND.tif

Escaphiella aratau, male habitus, ventral view (image by ND, specimen ID: ---29523)

Escaparatamphabv29523ND.tif

Escaphiella aratau, male palp, dorsal view (image by ND, specimen ID: ---29523)

Escaparatamppald29523ND.tif

Escaphiella aratau, male palp, prolateral view (image by ND, specimen ID: ---29523)

Escaparatamppalp29523ND.tif

Escaphiella aratau, male palp, retrolateral view (image by ND, specimen ID: ---29523)

Escaparatamppalr29523ND.tif

Escaphiella aratau, male palp, ventral view (image by ND, specimen ID: ---29523)

Escaparatamppalv29523ND.tif

Escaphiella aratau, male sternum, ventral view (image by ND, specimen ID: ---29523)

Escaparatampstev29523ND.tif

Escaphiella aratau, male endites, dorsal view (image by ND, specimen ID: ---29520)

Escaparatamsendd29520ND.tif

Escaphiella aratau, male endites, ventral view (image by ND, specimen ID: ---29520)

Escaparatamsendv29520ND.tif


            Female (PBI_OON 29525). Total length 1.09. As in male except as noted. CEPHALOTHORAX: Carapace granulate microsculpture mostly along margins, reaching half carapace sides. Mouthparts: Chelicerae paturon with anterolateral keel and one large plumose seta on anterior and posterior face at middle of fang base.. Endites anteromedian tip unmodified. 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 tibia with three dorsal trichobothria. ABDOMEN: dorsum soft portions without color pattern, striped pigmentation under dorsal scuta. Dorsal scutum absent. Epigastric scutum without lateral joints, anterior part with smooth margins. Postepigastric scutum lateral side of postepigastric scutum smooth. Spinnerets: PMS: pMS present (seen under compound microscope). LEGS: Leg spines absent. Trichobothria examined with Compound microscope.
Escaphiella aratau, female abdomen, ventral view (image by ND, specimen ID: ---29525)

Escaparatafpabdv29525ND.tif

Escaphiella aratau, female carapace, dorsal view (image by ND, specimen ID: ---29525)

Escaparatafpcard29525ND.tif

Escaphiella aratau, female carapace, lateral view (image by ND, specimen ID: ---29525)

Escaparatafpcarl29525ND.tif

Escaphiella aratau, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---29525)

Escaparatafpepiv29525ND.tif

Escaphiella aratau, female habitus, anterior view (image by ND, specimen ID: ---29525)

Escaparatafphaba29525ND.tif

Escaphiella aratau, female habitus, dorsal view (image by ND, specimen ID: ---29525)

Escaparatafphabd29525ND.tif

Escaphiella aratau, female habitus, lateral view (image by ND, specimen ID: ---29525)

Escaparatafphabl29525ND.tif

Escaphiella aratau, female habitus, ventral view (image by ND, specimen ID: ---29525)

Escaparatafphabv29525ND.tif

Escaphiella aratau, female sternum, ventral view (image by ND, specimen ID: ---29525)

Escaparatafpstev29525ND.tif

 

DISTRIBUTION

BRAZIL
Escaphiella aratau coordinates
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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 00029515  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029519  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029523  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029525  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Female  Holotype    -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029514  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    17 Jun 2002  Equipe IPAN  MPEG 
PBI_OON 00029518  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029522  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029513  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029517  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    17 Jun 2002  Equipe IPAN  MPEG 
PBI_OON 00029521  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029525  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029516  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029520  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  2 Adult Male      -4.15131; -50.16331    25 Jun 2003  Equipe IPAN  MPEG 
PBI_OON 00029524  BRAZIL  Para    Novo Repartimento, Fazenda Aratau  1 Adult Male      -4.15131; -50.16331    17 Jun 2002  Equipe IPAN  MPEG 


 
 
 
 
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The Field Museum of Natural History, Chicago   George Washington University, Washington DC
 
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