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OONOPIDAE SPECIES DESCRIPTION
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Aposphragisma scimitar       Get publication



            Male (PBI_OON00016129). Total length 1.71. 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, anterolateral corners without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides finely reticulate, thorax without depressions, fovea absent, carapace margin with sluice reaching level of coxa I, 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 in u-shaped row, setae arranged in a long u-shaped row reaching posterior edge of pars cephalica; setae not originating from pitlike structures but directly from surface (unlike most congeners); non-marginal pars thoracica setae light, needle-like, very few, scattered; marginal setae light, needle-like, marginal setae present but without modified hair bases (=denticles), unlike congeners. 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. Chilum absent. Eyes six, well developed, posterior eye-row tiny, ALE largest, all eyes oval; posterior eye row straight from above, recurved from front; ALE separated by less than their radius, ALE-PLE separated by less than ALE radius, PME touching for less than half 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, anterior corner unmodified, distance between coxae approximately equal, lateral margins unmodified, without posterior hump, continuous transverse groove on anterior margin inconspicuous, but well visible in lateral view; infra-coxal grooves present, but not possible to assess whether openings present or not; 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 or from smooth margin surface; marginal setae slightly thicker; posterior edge of sternum slightly protruding as single extension; setae abundant, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, in lateral view, anterior face with step-like swelling (instead of a more rounded swelling like most congeners); promargin without teeth; fangs without tooth-like projections, directed posteriorly, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered, anterior face of cheliceraes with few, rather evenly scattered setae; paturon distal region unmodified, promargin with row of flattened setae. Labium triangular, fused to sternum, anterior margin deeply incised, same as sternum in sclerotization, elongated triangular; subdistal portion with unmodified setae, ventral surface with 5 needle-like setae: two subdistal setae (one on each side of labium incision) and a transverse line of 3 more proximal setae (with the middle one being slightly more posterior). Endites distally not excavated, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization, outer margin subdistally with a pair of long setae with their tips bend and pointing inwards. 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, broadly ovoid (sides convex). 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, pedicel tube densely and finely ribbed. 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. Postepigastric scutum strongly sclerotized, pale orange, long, almost rectangular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with long posteriorly directed lateral apodemes, apodemes extremely long and curved with widened tips, almost reaching adomens posterior edge. 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 longer 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, femora in dorsal view: femora I-II procurved, femur III more or less straight, femur IV recurved, tibiae tibia III & IV with a cluster of special hairs on ventral apex, metatarsi metatarsi III & IV with a cluster of dagger like hairs on ventral apex with serrated lateral margins; dorsal apex of metatarsi I-IV each 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. GENITALIA: Epigastric region with sperm pore small, oval, situated at level of anterior spiracles, rebordered; 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 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 with 3 trichobothria; cymbium pale orange, ovoid in dorsal view, fused with bulb but with clearly defined seam between, not 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, spherical, distal part male palp "gamasomorphic"; bulb anterodorsally with weakly developed conical extension, distally with two appendages (a more dorsal embolus and a more ventral conductor); embolus dark, lamellar, about as long as bulb, tapering; conductor lamellar, tapering towards pointed tip, about as long as embolus; embolus-conductor-complex mesially bent in dorsal view, fitting into the continuous transverse groove at anterior margin of sternum.
Aposphragisma scimitar, male palp, prolateral view (image by MT, specimen ID: ---16129)

apospscimimppalp16129MT.tif

Aposphragisma scimitar, male abdomen, lateral view (image by MT, specimen ID: ---16129)

apospscimimpabdl16129MT.tif

Aposphragisma scimitar, male abdomen, posterior view (image by MT, specimen ID: ---16129)

apospscimimpabdT16129MT.tif

Aposphragisma scimitar, male carapace, anterior view (image by MT, specimen ID: ---16129)

apospscimimpcara16129MT.tif

Aposphragisma scimitar, male carapace, lateral view (image by MT, specimen ID: ---16129)

apospscimimpcarl16129MT.tif

Aposphragisma scimitar, male abdomen, ventral view (image by MT, specimen ID: ---16129)

apospscimimpabdv16129MT.tif

Aposphragisma scimitar, male carapace, dorsal view (image by MT, specimen ID: ---16129)

apospscimimpcard16129MT.tif

Aposphragisma scimitar, male habitus, dorsal view (image by MT, specimen ID: ---16129)

apospscimimphabd16129MT.tif

Aposphragisma scimitar, male habitus, lateral view (image by MT, specimen ID: ---16129)

apospscimimphabl16129MT.tif

Aposphragisma scimitar, male habitus, ventral view (image by MT, specimen ID: ---16129)

apospscimimphabv16129MT.tif

Aposphragisma scimitar, male sternum, ventral view (image by MT, specimen ID: ---16129)

apospscimimpstev16129MT.tif

Aposphragisma scimitar, male palp, prolateral view (image by MT, specimen ID: ---16129)

apospscimimdpalp16129MT.tif

 

DISTRIBUTION

INDONESIA
Aposphragisma scimitar 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 00016133  INDONESIA  Kalimantan Timur    Sotek  1 Adult Male  Paratype    1.20000; 116.58333    31 Dec 1980  Aoki, J.& Harada, H.  MZT 
PBI_OON 00016129  INDONESIA  Kalimantan Timur    Camp Pemantus, 45 km W Sotek  1 Adult Male  Holotype    ;     23 Dec 1980  Aoki, J.& Harada, H.  MZT 


 
 
 
 
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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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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