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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Triaeris ibadan       Get publication



            Male (PBI_OON 9629). Total length 1.32. CEPHALOTHORAX: Carapace brown, broadly oval in dorsal view, pars cephalica domed 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 with strongly sclerotized, triangular extension, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea absent, without radiating rows of pits, sides with indistinct longitudinal dark stripe, extending from opposite coxae II to opposite coxae IV; dark longitudinal stripe present along midline; lateral margin straight, rebordered, without 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 dark, needle-like. Clypeus margin strongly rebordered, curved downwards in front view, vertical in lateral view, low, ALE separated from edge of carapace by less than their radius, median projection absent; setae present, dark, needle-like. Chilum absent. Eyes six, well developed, ALE, PLE largest than PME, ALE oval, PME squared, PLE oval; posterior eye row recurved 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, yellow, uniform, not fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, furrow smooth, radial furrow opposite coxae III absent, surface smooth, without pits, microsculpture absent, 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 with strongly sclerotized triangle in male, lateral margin with infra-coxal grooves and anterior and posterior openings, distance between coxae approximately equal, extensions of pre-coxal triangles present, lateral margins with narrow extensions between coxae, without posterior hump, with pair of enlarged, posteromedially directed setae situated near anterolateral corners; setae sparse, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae straight, anterior face unmodified, yellow, labium and endites dark red-brown; promargin with one tooth, retromargin without teeth; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae dark, needle-like, densest medially; paturon inner margin with scattered setae, distal region unmodified, posterior surface unmodified, promargin with row of flattened setae, inner margin unmodified, laminate groove absent. Labium rectangular, not fused to sternum, anterior margin indented at middle, much more heavily sclerotized than sternum, posterior margin with unsclerotized area around midline; with 3-5 setae on anterior margin, subdistal portion with 1 enlarged seta. Endites distally excavated, serrula absent, much more heavily sclerotized than sternum, with translucent band near anteromedian edge, medially with protuberances over sides of labium, distally elaborate. 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. Posterior spiracles not connected by groove. Pedicel tube short, unmodified, 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, brown, without color pattern, covering more than 3/4 of abdomen, more than 1/2 to most of abdomen width, not fused to epigastric scutum, middle surface smooth, sides smooth, anterior half without projecting denticles. Epigastric scutum weakly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum weakly sclerotized, yellow, short, almost rectangular, covering about 1/3 of the 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. Postepigastric area setae present, dark, needle-like. Spinneret scutum with fringe of stout setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present. LEGS: yellow, femora and basal half of tibiae darkened; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter than carapace, tibia I unmodified, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent, metatarsi III and IV weak ventral scopula absent, patellae basally darkened; patella I elongate, measured dorsally, almost as long as tibia, other patellae elongated but less dramatically so. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): patellae: I v0-1p-1r; II v0-0-1p; tibiae: I v2-4-0; II v1p-1p-0; IV v0-0-2. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria not examined. GENITALIA: Epigastric region with sperm pore small, oval, situated between anterior and posterior spiracles, unmodified; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments yellow-brown; embolus light, prolateral excavation absent; trochanter normal size, 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, with group of prolateral leaf-like setae; tibia trichobothria not examined; cymbium yellow, narrow in dorsal view, fused with bulb but with clearly defined seam between, extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae; bulb yellow, shorter than cymbium, slender, elongated.
Triaeris ibadan, male palp, prolateral view (image by ND, specimen ID: ---32995)

Triaeibadamppalp32995ND.tif

Triaeris ibadan, male palp, retrolateral view (image by ND, specimen ID: ---32995)

Triaeibadamppalr32995ND.tif

Triaeris ibadan, male sternum, ventral view (image by ND, specimen ID: ---32995)

Triaeibadampstev32995ND.tif

Triaeris ibadan, male carapace, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamscara32995ND.tif

Triaeris ibadan, male carapace, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamscard32995ND.tif

Triaeris ibadan, male carapace, lateral view (image by ND, specimen ID: ---32995)

Triaeibadamscarl32995ND.tif

Triaeris ibadan, male chelicerae, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamschea32995ND.tif

Triaeris ibadan, male chelicerae, posterior view (image by ND, specimen ID: ---32995)

Triaeibadamschet32995ND.tif

Triaeris ibadan, male claws, leg III, lateral view (image by ND, specimen ID: ---32995)

Triaeibadamscl3l32995ND.tif

Triaeris ibadan, male endites, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamsendd32995ND.tif

Triaeris ibadan, male endites, ventral view (image by ND, specimen ID: ---32995)

Triaeibadamsendv32995ND.tif

Triaeris ibadan, male labrum, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamslard32995ND.tif

Triaeris ibadan, male palpal patella, prolateral view (image by ND, specimen ID: ---32995)

Triaeibadamsppap32995ND.tif

Triaeris ibadan, male palp, prolateral view (image by ND, specimen ID: ---32995)

Triaeibadamspalp32995ND.tif

Triaeris ibadan, male palp, retrolateral view (image by ND, specimen ID: ---32995)

Triaeibadamspalr32995ND.tif

Triaeris ibadan, male spinnerets, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamsspia32995ND.tif

Triaeris ibadan, male sperm pore, ventral view (image by ND, specimen ID: ---32995)

Triaeibadamsspov32995ND.tif

Triaeris ibadan, male sternum, ventral view (image by ND, specimen ID: ---32995)

Triaeibadamsstev32995ND.tif

Triaeris ibadan, male ALS, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamsalsa32995ND.tif

Triaeris ibadan, male PLS, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamsplsa32995ND.tif

Triaeris ibadan, male PMS, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamspmsa32995ND.tif

Triaeris ibadan, male tarsal organ, leg III, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamsto3d32995ND.tif

Triaeris ibadan, male tarsal organ, leg IV, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamsto4d32995ND.tif

Triaeris ibadan, male tarsal organ, palp, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamstopd32995ND.tif

Triaeris ibadan, male claws, leg I, lateral view (image by ND, specimen ID: ---32995)

Triaeibadamscl1l32995ND.tif

Triaeris ibadan, male claws, leg II, lateral view (image by ND, specimen ID: ---32995)

Triaeibadamscl2l32995ND.tif

Triaeris ibadan, male claws, leg IV, anterior view (image by ND, specimen ID: ---32995)

Triaeibadamscl4a32995ND.tif

Triaeris ibadan, male setae, sternum, ventral view (image by ND, specimen ID: ---32995)

Triaeibadamssesv32995ND.tif

Triaeris ibadan, male tarsal organ, leg I, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamsto1d32995ND.tif

Triaeris ibadan, male tarsal organ, leg II, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadamsto2d32995ND.tif


            Female (PBI_OON 32995). Total length 1.28. As in male except as noted. CEPHALOTHORAX: Carapace pars cephalica strongly elevated in lateral view, sides with indistinct longitudinal dark stripe, extending from opposite coxae II to opposite coxae IV; dark longitudinal stripe present along midline. Clypeus margin slightly rebordered. Sternum anterior margin unmodified. Mouthparts: Chelicerae, endites and labium yellow. Labium triangular; subdistal portion with unmodified setae. Endites distally not excavated, serrula present in single row, anteromedian tip unmodified, posteromedian part unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Epigastric scutum without lateral joints. Postepigastric scutum short, only around epigastric furrow, not fused to epigastric scutum. LEGS: patellae basally darkened; patella I elongate, measured dorsally, almost as long as tibia, other patellae elongated but less dramatically so. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): patellae: I v0-1p-1r; II v0-0-1p; tibiae: I v2-4-0; II v2-2-0; IV v0-0-2. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: posterior receptaculum with triangular posterior invagination, anterior receptaculum elaborate..
Triaeris ibadan, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---32995)

Triaeibadafpepiv32995ND.tif

Triaeris ibadan, female habitus, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafphabd32995ND.tif

Triaeris ibadan, female internal female genitalia, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafpifgd32995ND.tif

Triaeris ibadan, female internal female genitalia, ventral view (image by ND, specimen ID: ---32995)

Triaeibadafpifgv32995ND.tif

Triaeris ibadan, female abdomen, ventral view (image by ND, specimen ID: ---32995)

Triaeibadafpabdv32995ND.tif

Triaeris ibadan, female carapace, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafscard32995ND.tif

Triaeris ibadan, female claws, leg IV, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafscl4a32995ND.tif

Triaeris ibadan, female endites, ventral view (image by ND, specimen ID: ---32995)

Triaeibadafsendv32995ND.tif

Triaeris ibadan, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---32995)

Triaeibadafsepiv32995ND.tif

Triaeris ibadan, female sternum, ventral view (image by ND, specimen ID: ---32995)

Triaeibadafsstev32995ND.tif

Triaeris ibadan, female PLS, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafsplsa32995ND.tif

Triaeris ibadan, female PMS, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafspmsa32995ND.tif

Triaeris ibadan, female spinnerets, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafsspia32995ND.tif

Triaeris ibadan, female tarsal organ, leg IV, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsto4d32995ND.tif

Triaeris ibadan, female ALS, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafsalsa32995ND.tif

Triaeris ibadan, female carapace, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafscara32995ND.tif

Triaeris ibadan, female carapace, lateral view (image by ND, specimen ID: ---32995)

Triaeibadafscarl32995ND.tif

Triaeris ibadan, female chelicerae, anterior view (image by ND, specimen ID: ---32995)

Triaeibadafschea32995ND.tif

Triaeris ibadan, female chelicerae, posterior view (image by ND, specimen ID: ---32995)

Triaeibadafschet32995ND.tif

Triaeris ibadan, female claws, leg I, lateral view (image by ND, specimen ID: ---32995)

Triaeibadafscl1l32995ND.tif

Triaeris ibadan, female claws, leg III, lateral view (image by ND, specimen ID: ---32995)

Triaeibadafscl3l32995ND.tif

Triaeris ibadan, female endites, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsendd32995ND.tif

Triaeris ibadan, female palp, prolateral view (image by ND, specimen ID: ---32995)

Triaeibadafspalp32995ND.tif

Triaeris ibadan, female palp, retrolateral view (image by ND, specimen ID: ---32995)

Triaeibadafspalr32995ND.tif

Triaeris ibadan, female palpal tibia, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsptid32995ND.tif

Triaeris ibadan, female cheliceral retromargin, posterior view (image by ND, specimen ID: ---32995)

Triaeibadafsrett32995ND.tif

Triaeris ibadan, female serrula, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsserd32995ND.tif

Triaeris ibadan, female tarsal organ, leg I, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsto1d32995ND.tif

Triaeris ibadan, female tarsal organ, leg III, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsto3d32995ND.tif

Triaeris ibadan, female tarsal organ, palp, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafstopd32995ND.tif

Triaeris ibadan, female internal female genitalia, dorsal view (image by ND, specimen ID: ---32995)

Triaeibadafsifgd32995ND.tif

 

DISTRIBUTION

NIGERIA
Triaeris ibadan coordinates
Click the following link for a map from Discover Life which displays the records below. You can click anywhere on that map to zoom in, and clicking on any point will display the full data for that locality Triaeris ibadan, Discover Life Map
 

MATERIAL EXAMINED
Order by:    
PBI USI Country State Division Locality Sex Type Status Elevation(m) GPS Coordinate Habitat Collection_Date Collector Inst. Code
PBI_OON 00009962  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male      7.49716; 3.89654  10-year regrowth  18 Oct 1973  A. Russell-Smith  MRAC 
PBI_OON 00009964  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male      7.49716; 3.89654  riverine woodland  05 May 1974  A. Russell-Smith  MRAC 
PBI_OON 00009249  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  2 Adult Female      7.49716; 3.89654  riverine woodland  05 May 1974  A. Russell-Smith  MRAC 
PBI_OON 00009133  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  riverine woodland  26 Jan 1973  A. Russell-Smith  MRAC 
PBI_OON 00009966  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  riverine woodland  09 Jun 1974  A. Russell-Smith  MRAC 
PBI_OON 00032995  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  7 Adult Male      7.49716; 3.89654  forest  03 Apr 1981  A. Russell-Smith  MRAC 
PBI_OON 00009629  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male  Holotype    7.49716; 3.89654  fallow bush plot  01 Nov 1974  A. Russell-Smith  MRAC 
PBI_OON 00009912  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  2 Adult Male      7.49716; 3.89654  riverine forest  24 Feb 1982  A. Russell-Smith  MRAC 
PBI_OON 00009672  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male      7.49716; 3.89654  riverine forest  15 Apr 1974  A. Russell-Smith  MRAC 
PBI_OON 00009637  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male      7.49716; 3.89654  riverine forest  28 Mar 1973  A. Russell-Smith  MRAC 
PBI_OON 00009155  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  riverine forest  11 May 1973  A. Russell-Smith  MRAC 
PBI_OON 00032996  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  fallow bush plot  03 Feb 1973  A. Russell-Smith  MRAC 
PBI_OON 00009325  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  in bush fallow near golf course  24 Feb 1982  A. Russell-Smith  MRAC 
PBI_OON 00009911  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  riverine forest  24 Mar 1974  A. Russell-Smith  MRAC 
PBI_OON 00009597  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  2 Adult Male      7.49716; 3.89654  riverine forest  23 Apr 1973  A. Russell-Smith  MRAC 
PBI_OON 00009538  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male      7.49716; 3.89654  riverine forest  11 May 1973  A. Russell-Smith  MRAC 
PBI_OON 00009127  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  2 Adult Female      7.49716; 3.89654  bush fallow  01 Nov 1973  A. Russell-Smith  MRAC 
PBI_OON 00009161  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  10-year regrowth  18 Oct 1973  A. Russell-Smith  MRAC 
PBI_OON 00009078  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Female      7.49716; 3.89654  riverine woodland  05 May 1974  A. Russell-Smith  MRAC 
PBI_OON 00009077  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  4 Adult Female      7.49716; 3.89654  fallow bush plot  23 Apr 1973  A. Russell-Smith  MRAC 
PBI_OON 00009084  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  2 Adult Female      7.49716; 3.89654  fallow bush plot  01 Nov 1974  A. Russell-Smith  MRAC 
PBI_OON 00009604  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  1 Adult Male      7.49716; 3.89654  bush fallow  01 Nov 1973  A. Russell-Smith  MRAC 
PBI_OON 00032995  NIGERIA  Oyo    International Institute of Tropical Agriculture, Ibadan  5 Adult Female      7.49716; 3.89654  forest  03 Apr 1981  A. Russell-Smith  MRAC 


 
 
 
 
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