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



            Male (PBI_OON00012212). Total length 1.30. 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 strongly reticulate, thorax without depressions, fovea absent, carapace margin: sluice reaching 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 structure with partly swollen edges, especially pronounced at posterior edge of pars cephalica, where hair bases may appear denticle-like; non-marginal pars thoracica setae light, needle-like, only very few needle-like hairs on carapace surface sides; marginal setae light, needle-like. 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 being 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 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, 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 everywhere but middle, 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, infracoxal grooves visible with steremicroscope but impossible to assess presence or absence of 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 / blossom-shaped; sternum surface setae originating from middle of microsculptures, smooth middle strip without setae; posterior edge of sternum protruding as single extension, covered with small blunt denticles (=modified hair bases); setae abundant, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, posterior margin of inner surface proximally modified to a ridge that covers about 2/3 of margin-length (recognised with compound microscope); promargin with row of flattened setae; inner margin of paturon anterior face distally with small toothlike projection (outgrowth of paturon promargin), pointing inwards; posterior face with a pair of long, spatulate setae (more than half as long as fangs); without teeth on both promargin and retromargin; 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, inner margin unmodified. Labium triangular, fused to sternum, anterior margin deeply incised, same as sternum in sclerotization; 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. Endites distally not excavated, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization, outer margin subdistally with a pair of long setae, distally bend inwards. 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, rather pear-shaped (sides slightly convex), about 4x as long as wide. Posterior spiracles connected by groove. Pedicel tube short, ribbed, scuto-pedicel region with widely oval scutal ridge, scutum not extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, dorsal part of epigastric scutum with subterminal ridge. Dorsal scutum strongly sclerotized, yellow-brown, 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, yellow-brown, long, semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with short 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, femora in dorsal view: femur 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 short, 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. GENITALIA: Epigastric region with sperm pore small, oval, situated between anterior and posterior spiracles, rebordered; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments yellow; 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 yellow, 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 yellow, 1 to 1.5 times as long as cymbium, slender, tapering apically, distal part male palp "gamasomorphic"; anterodorsal with small conical extension; Bulbus distally with two appendages, the more dorsal embolus and a more ventral second appendage ('conductor'): embolus dark, lamellar, about half as long as bulb, conductor tapering towards pointed tip, about as long as embolus; bulb edge ventrally concave in lateral view; embolus-conductor-complex mesially bent in dorsal view, fitting into the continuous transverse groove at anterior margin of sternum. Spermophor easily visible using a compound microscope, spermophor-opening lying on retrolateral apex of embolus.
Aposphragisma hausammannae, male abdomen, anterior view (image by MT, specimen ID: ---12212)

aposphausampabda12212MT.tif

Aposphragisma hausammannae, male abdomen, dorsal view (image by MT, specimen ID: ---12212)

aposphausampabdd12212MT.tif

Aposphragisma hausammannae, male abdomen, lateral view (image by MT, specimen ID: ---12212)

aposphausampabdl12212MT.tif

Aposphragisma hausammannae, male abdomen, posterior view (image by MT, specimen ID: ---12212)

aposphausampabdT12212MT.tif

Aposphragisma hausammannae, male abdomen, ventral view (image by MT, specimen ID: ---12212)

aposphausampabdv12212MT.tif

Aposphragisma hausammannae, male carapace, anterior view (image by MT, specimen ID: ---12212)

aposphausampcara12212MT.tif

Aposphragisma hausammannae, male carapace, dorsal view (image by MT, specimen ID: ---12212)

aposphausampcard12212MT.tif

Aposphragisma hausammannae, male carapace, lateral view (image by MT, specimen ID: ---12212)

aposphausampcarl12212MT.tif

Aposphragisma hausammannae, male carapace, posterior view (image by MT, specimen ID: ---12212)

aposphausampcarT12212MT.tif

Aposphragisma hausammannae, male habitus, dorsal view (image by MT, specimen ID: ---12212)

aposphausamphabd12212MT.tif

Aposphragisma hausammannae, male habitus, lateral view (image by MT, specimen ID: ---12212)

aposphausamphabl12212MT.tif

Aposphragisma hausammannae, male habitus, ventral view (image by MT, specimen ID: ---12212)

aposphausamphabv12212MT.tif

Aposphragisma hausammannae, male sternum, ventral view (image by MT, specimen ID: ---12212)

aposphausampstev12212MT.tif

Aposphragisma hausammannae, male palp, prolateral view (image by MT, specimen ID: ---12212)

aposphausamppalp12212MT.tif

Aposphragisma hausammannae, male palp, prolateral view (image by MT, specimen ID: ---12212)

aposphausamdpalp12212MT.tif


            Female (PBI_OON00015468). Total length 1.50. As in male except as noted. CEPHALOTHORAX: Carapace carapace margin: sluice reaching level of coxa I; non-marginal pars cephalica setae setae arranged in a long u-shaped row reaching posterior edge of pars cephalica; each setae originating from the middle of a pitlike structure with partly swollen edges, especially pronounced at posterior edge of pars cephalica, where hair bases may appear denticle-like; non-marginal pars thoracica setae only very few needle-like hairs on carapace surface sides. Clypeus setae a pair of long, needle-like setae on each half of the clypeus, with the inner ones being longer than the outer ones, pointing inwards. Sternum infracoxal grooves visible with steremicroscope but impossible to assess presence or absence of 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 / blossom-shaped; sternum surface setae originating from middle of microsculptures, smooth middle strip without setae; posterior edge of sternum protruding as single extension, covered with small blunt denticles (=modified hair bases). Mouthparts: Chelicerae posterior margin of inner surface proximally modified to a ridge that covers about 2/3 of margin-length (recognised with compound microscope); promargin with row of flattened setae; posterior face with a pair of long, spatulate setae (more than half as long as fangs); setae anterior face of cheliceraes with few, rather evenly scattered setae. Labium 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. Endites outer margin subdistally with a pair of long setae, distally bend inwards. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Book lung covers elongated, rather pear-shaped (sides slightly convex), about 4x as long as wide. Pedicel dorsal part of epigastric scutum with subterminal ridge. Dorsal scutum pale orange, surface smooth, but bases of setae appearing pitlike, giving a punctate impression. Epigastric scutum without lateral joints, posterolateral part with row of longitudinal ridges. Postepigastric scutum pale orange, not fused to epigastric scutum. LEGS: femora in dorsal view: femur 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 short, 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. Trichobothria examined with Compound microscope.
Aposphragisma hausammannae, female abdomen, anterior view (image by MT, specimen ID: ---15468)

aposphausafpabda15468MT.tif

Aposphragisma hausammannae, female abdomen, dorsal view (image by MT, specimen ID: ---15468)

aposphausafpabdd15468MT.tif

Aposphragisma hausammannae, female abdomen, lateral view (image by MT, specimen ID: ---15468)

aposphausafpabdl15468MT.tif

Aposphragisma hausammannae, female abdomen, posterior view (image by MT, specimen ID: ---15468)

aposphausafpabdT15468MT.tif

Aposphragisma hausammannae, female abdomen, ventral view (image by MT, specimen ID: ---15468)

aposphausafpabdv15468MT.tif

Aposphragisma hausammannae, female carapace, anterior view (image by MT, specimen ID: ---15468)

aposphausafpcara15468MT.tif

Aposphragisma hausammannae, female carapace, dorsal view (image by MT, specimen ID: ---15468)

aposphausafpcard15468MT.tif

Aposphragisma hausammannae, female carapace, lateral view (image by MT, specimen ID: ---15468)

aposphausafpcarl15468MT.tif

Aposphragisma hausammannae, female carapace, posterior view (image by MT, specimen ID: ---15468)

aposphausafpcarT15468MT.tif

Aposphragisma hausammannae, female habitus, dorsal view (image by MT, specimen ID: ---15468)

aposphausafphabd15468MT.tif

Aposphragisma hausammannae, female habitus, lateral view (image by MT, specimen ID: ---15468)

aposphausafphabl15468MT.tif

Aposphragisma hausammannae, female habitus, ventral view (image by MT, specimen ID: ---15468)

aposphausafphabv15468MT.tif

Aposphragisma hausammannae, female sternum, ventral view (image by MT, specimen ID: ---15468)

aposphausafpstev15468MT.tif

 

DISTRIBUTION


Unknown.
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MATERIAL EXAMINED

None.


 
 
 
 
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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