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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Aposphragisma confluens       Get publication



            Female (PBI-OON15238). Total length 1.65. CEPHALOTHORAX: Carapace pale orange, without any pattern, ovoid in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less, with rounded posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides finely reticulate, thorax without depressions, fovea absent, carapace margin: sluice reaching from posterior margin to level of coxa I, 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 light, needle-like, present in u-shaped row, setae arranged in a long u-shaped row reaching posterior edge of pars cephalica; each setae originating from the middle of a pitlike depression; marginal setae light, needle-like, denticles at carapace margin represent modified hair bases; setae originating from anterior face of denticles, pointing anteriorly. Clypeus sinuous in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present, light, needle-like, a pair of long, needle-like setae on each half of the clypeus, with the inner ones longer than the outer ones, pointing inwards. Chilum absent. Eyes six, well developed, ALE largest, all eyes oval; posterior eye row straight from above, procurved from front; ALE separated by less than their radius, 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, pale orange, uniform, fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, radial furrow opposite coxae III absent, surface finely reticulate, without pits, microsculpture covering entire surface, sickle-shaped structures absent, anterior margin with continuous transverse groove, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, distance between coxae approximately equal, lateral margins unmodified, without posterior hump, infracoxal grooves present but difficult to assess if with or without openings; radial furrows between coxae I-II, II-III and III-IV only very weakly developed, rather appearing as indentions of sternum margin; sternum microsculptures lobed; sternum surface setae originating from middle of microsculptures; posterior edge of sternum protruding as single extension; setae abundant, light, needle-like, evenly scattered, originating from surface. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight; promargin without teeth; fangs directed posteriorly, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon distal region unmodified, promargin with row of flattened setae, inner margin unmodified. Labium triangular, fused to sternum, anterior margin deeply incised; subdistal portion with unmodified setae, with 5 non-marginal needlelike setae: 3 subdistal setae (i.e. posterior to incision), with the middle one slightly shorter than the lateral two, and two more distal setae (one on each side of incision). Endites distally not excavated, anteromedian tip unmodified, posteromedian part unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. 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, elongated, about 4x longer than wide. Posterior spiracles connected by groove. Pedicel tube short, ribbed, scuto-pedicel region unmodified, scutum not extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area 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, surface smooth, but bases of setae appearing pitlike, giving a punctate impression. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent, without lateral joints, posterolaterally with u-shaped / curved ridge. Postepigastric scutum strongly sclerotized, pale orange, long, semicircular, covering nearly full length of abdominal length, not fused to epigastric scutum, anterior margin unmodified, with long posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, light, needle-like. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Spinneret scutum with fringe of long setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present. LEGS: pale orange, 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 ventral scopula absent, metatarsi I and II meso-apical comb absent , metatarsi III and IV weak ventral scopula absent, tibiae special hairs on ventral apex of tibia III & IV thin, plumose, distally flattened, with fringed lateral margins and spatulate tips, metatarsi special hairs on ventral apex of metatarsi III & IV short, dagger-like, with finely serrated ridges on surface and coarsely serrated lateral margins; dorsal apex of metatarsi I-IV with small, shieldlike appendage. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria examined with Compound microscope; tibia: each with three; metatarsus: each with one.
Aposphragisma confluens, female abdomen, lateral view (image by MT, specimen ID: ---15238)

apospconflfpabdl15238MT.tif

Aposphragisma confluens, female abdomen, posterior view (image by MT, specimen ID: ---15238)

apospconflfpabdT15238MT.tif

Aposphragisma confluens, female abdomen, ventral view (image by MT, specimen ID: ---15238)

apospconflfpabdv15238MT.tif

Aposphragisma confluens, female carapace, anterior view (image by MT, specimen ID: ---15238)

apospconflfpcara15238MT.tif

Aposphragisma confluens, female carapace, dorsal view (image by MT, specimen ID: ---15238)

apospconflfpcard15238MT.tif

Aposphragisma confluens, female carapace, lateral view (image by MT, specimen ID: ---15238)

apospconflfpcarl15238MT.tif

Aposphragisma confluens, female carapace, prolateral view (image by MT, specimen ID: ---15238)

apospconflfpcarp15238MT.tif

Aposphragisma confluens, female habitus, lateral view (image by MT, specimen ID: ---15238)

apospconflfphabl15238MT.tif

Aposphragisma confluens, female habitus, dorsal view (image by MT, specimen ID: ---15238)

apospconflfphabd15238MT.tif

Aposphragisma confluens, female habitus, ventral view (image by MT, specimen ID: ---15238)

apospconflfphabv15238MT.tif

Aposphragisma confluens, female sternum, ventral view (image by MT, specimen ID: ---15238)

apospconflfpstev15238MT.tif

 

DISTRIBUTION

MALAYSIA
Aposphragisma confluens 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 00015238  MALAYSIA  Sarawak    Tr. Nawin at confluence of Suan Oyan River and Mujong River, E Kapit  1 Adult Female  Holotype  150  2.03616; 113.21964  mixed dipterocarp forest, vegetational debris  19 May 1994  D. Burckhardt, I. Löbl  MHNG 


 
 
 
 
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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