(Female redundant descriptions removed)
Trilacuna aenobarbus
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Male (PBI_OON 14906). Total length 1.92. CEPHALOTHORAX: Carapace orange-brown, without any pattern, pyriform in dorsal view, pars cephalica strongly 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 granulate, thorax without depressions, fovea absent, carapace of the type specimen crushed., 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; non-marginal pars thoracica setae non-marginal pars thoracica setae lost.; marginal setae absent. Clypeus margin unmodified, 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, all subequal, all eyes oval; posterior eye row recurved from above, straight from front; ALE separated by their radius to diameter, ALE-PLE touching, PME touching throughout most of their length, PLE-PME separated by PME radius to PME diameter. Sternum longer than wide, pale orange, uniform, fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, furrow smooth, surface finely reticulate, without pits, microsculpture covering entire surface, sickle-shaped structures absent, anterior margin unmodified, 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 with narrow extensions between coxae, without posterior hump; setae sparse, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, anterior face unmodified; fangs without tooth-like projections, directed posteriorly, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon distal region abruptly narrowed. Labium triangular, not fused to sternum, anterior margin deeply incised, same as sternum in sclerotization; with 1 or 2 setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization. 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, round, 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, pedicel tube with a triangular ventral incision at the middle.. 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, almost rectangular, covering about 3/4 of abdominal length, fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, dark, needle-like. Epigastric area setae uniform, dark, needle-like, a patch of strong, enlarged, posteriorly directed setae in the epigastric area.. Postepigastric area setae present, dark, needle-like. Spinneret scutum without fringe of setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present, with a pair of setae.. 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. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): (leg I: tibiae: v2-2-2-2-0, metatarsi: v2-2-0, leg II: tibiae: v2-2-2-2-0, metatarsi: v2-2-0. ). Tarsi I to IV without inferior claw. Trichobothria not examined. GENITALIA: Epigastric region with sperm pore large, circular, situated in front of anterior spiracles; furrow without omega-shaped insertions. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments pale orange; embolus light, prolateral excavation absent; trochanter normal size, unmodified; femur enlarged, two or more times as long as trochanter, with posteriorly rounded lateral dilation, attaching to patella basally, dorsally enlarged, with distal and proximal bulges.; patella shorter than femur, not enlarged, setae unmodified; tibia trichobothria not examined; cymbium pale orange, narrow in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, without stout setae, without distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, stout, elongated, distal part patches of thin hair-like structures surrounding the base of the embolus..
Trilacuna aenobarbus, male palp, retrolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmdpalr14906XG.jpg
| Trilacuna aenobarbus, male abdomen, ventral view (image by XG, specimen ID: ---14906)
Trilaaenobmpabdv14906XG.jpg
| Trilacuna aenobarbus, male bulb, retrolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmpbulr14906XG.jpg
| Trilacuna aenobarbus, male carapace, dorsal view (image by XG, specimen ID: ---14906)
Trilaaenobmpcard14906XG.jpg
| Trilacuna aenobarbus, male carapace, lateral view (image by XG, specimen ID: ---14906)
Trilaaenobmpcarl14906XG.jpg
| Trilacuna aenobarbus, male carapace, ventral view (image by XG, specimen ID: ---14906)
Trilaaenobmpcarv14906XG.jpg
| Trilacuna aenobarbus, male embolus, retrolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmpembr14906XG.jpg
| Trilacuna aenobarbus, male endites, ventral view (image by XG, specimen ID: ---14906)
Trilaaenobmpendv14906XG.jpg
| Trilacuna aenobarbus, male habitus, dorsal view (image by XG, specimen ID: ---14906)
Trilaaenobmphabd14906XG.jpg
| Trilacuna aenobarbus, male habitus, lateral view (image by XG, specimen ID: ---14906)
Trilaaenobmphabl14906XG.jpg
| Trilacuna aenobarbus, male habitus, ventral view (image by XG, specimen ID: ---14906)
Trilaaenobmphabv14906XG.jpg
| Trilacuna aenobarbus, male palp, dorsal view (image by XG, specimen ID: ---14906)
Trilaaenobmppald14906XG.jpg
| Trilacuna aenobarbus, male palp, prolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmppalp14906XG.jpg
| Trilacuna aenobarbus, male palp, retrolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmppalr14906XG.jpg
| Trilacuna aenobarbus, male palp, prolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmdpalp14906XG.tif
| Trilacuna aenobarbus, male palp, retrolateral view (image by XG, specimen ID: ---14906)
Trilaaenobmppalr14906XG.tif
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DISTRIBUTION
BHUTAN
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Trilacuna aenobarbus, Discover Life Map
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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 00014906 |
BHUTAN |
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Thimphu |
1 Adult Male |
Holotype |
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01 Jan 1972 |
P. M. Brignoli |
NMB |
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