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OONOPIDAE SPECIES DESCRIPTION
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Bipoonops tsachila       Get publication



            Male (PBI_OON_0049202). Total length 1.52. CEPHALOTHORAX: Carapace brown, broadly oval 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 finely reticulate, sides finely reticulate, thorax without depressions, fovea absent, large moderately darkened patch at posterior half of carapace, without radiating rows of pits; lateral margin undulate, rebordered, without denticles; plumose setae near posterior margin of pars thoracica absent; non-marginal pars cephalica setae needle-like, present, scattered; non-marginal pars thoracica setae needle-like; marginal setae needle-like. Clypeus margin unmodified, curved downwards in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present, needle-like. Chilum absent. Eyes six, well developed, eyes relatively large, all subequal, ALE oval, PME squared, PLE 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 as long as wide, pale orange, 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 rugose, without pits, microsculpture medially and in furrows, sickle-shaped structures absent, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV, anterior corner unmodified, distance between coxae approximately equal, extensions of pre-coxal triangles present, lateral margins unmodified, without posterior hump, microsculpture very weakly visible in the back of the sternum; setae sparse, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium brown. Chelicerae slightly divergent, anterior face unmodified; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae needle-like, evenly scattered; paturon inner margin with pairs of enlarged setae, distal region abruptly narrowed, posterior surface unmodified, inner margin unmodified, laminate groove absent. Labium rectangular, fused to sternum, anterior margin not indented at middle, same as sternum in sclerotization; with 3-5 setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, same as sternum in sclerotization, endites anteromedian tip moderately elongated with strongly sclerotized rim, median part with narrow cone-shaped projection with distal setae. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions yellowish ground color, dorsally with dark purple-brown spots and indistinct netlike pattern, cardiac mark pale, posteriorly with two posteriad pale lines. Book lung covers large, ovoid, without setae, anterolateral edge unmodified. Posterior spiracles not connected by groove. Pedicel tube short, 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. Dorsal scutum strongly sclerotized, orange-brown, without color pattern, covering more than 3/4 of abdomen, more than 1/2 to most of abdomen width, fused to epigastric scutum, middle surface smooth, sides smooth, anterior half without projecting denticles, fusion to epigastric scutum only anteromedian, laterally not fused. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, orange-brown, almost semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring, divided into 2 platelets. Dorsum setae present, needle-like. Epigastric area setae uniform, needle-like. Postepigastric area setae present, needle-like. Spinneret scutum without fringe of setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present, small plate with 2 setae. Spinnerets: ALS: not examined; PMS: not examined; PLS: not examined. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I near as long as 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, tibiae emerit's glands not examined, tarsi pairs of special setae with distinct flattened clawlike apexes present on tarsi III, IV. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-1-1; II p0-0-1; tibiae: I v4-2-2; II v4-2-1p; IV p0-1-0; v0-0-2; r0-1-0; metatarsi: I, II p1-0-0; v2-2-2; IV p0-1-0; r0-1-0. 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 at level of anterior spiracles, unmodified; 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, basally broad, dorsoventrally flattened, tubelike, distally narrowing, bent prolaterad, simple pointed; 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, setae unmodified; tibia trichobothria with 3 trichobothria; cymbium pale orange, narrow in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae, cymbial cone crater-shaped, tarsal organ with 2 sensilla; bulb yellow, 1 to 1.5 times as long as cymbium, stout, spherical, distal part conductor originates at bulb, ventroprolaterally of embolus, short base, dividing into broad, platelike, leaf-shaped, prolateral part with with two pointed tips, and flattened narrowly elongated projection, distally platelike with pointed tip, bent prolaterad, more than twice as long as platelike part, longer than embolus.
Bipoonops tsachila, male abdomen, anterior view (image by AO, specimen ID: ---49202)

bipootsachmpabda49202AO.tif

Bipoonops tsachila, male abdomen, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmpabdd49202AO.tif

Bipoonops tsachila, male abdomen, lateral view (image by AO, specimen ID: ---49202)

bipootsachmpabdl49202AO.tif

Bipoonops tsachila, male abdomen, ventral view (image by AO, specimen ID: ---49202)

bipootsachmpabdv49202AO.tif

Bipoonops tsachila, male carapace, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmpcard49202AO.tif

Bipoonops tsachila, male carapace, lateral view (image by AO, specimen ID: ---49202)

bipootsachmpcarl49202AO.tif

Bipoonops tsachila, male endites, ventral view (image by AO, specimen ID: ---49202)

bipootsachmpendv49202AO.tif

Bipoonops tsachila, male habitus, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmphabd49202AO.tif

Bipoonops tsachila, male palp, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmppald49202AO.tif

Bipoonops tsachila, male palp, prolateral view (image by AO, specimen ID: ---49202)

bipootsachmppalp49202AO.tif

Bipoonops tsachila, male palp, retrolateral view (image by AO, specimen ID: ---49202)

bipootsachmppalr49202AO.tif

Bipoonops tsachila, male sternum, ventral view (image by AO, specimen ID: ---49202)

bipootsachmpstev49202AO.tif

Bipoonops tsachila, male bulb, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmsbuld49202AO.tif

Bipoonops tsachila, male bulb, prolateral view (image by AO, specimen ID: ---49202)

bipootsachmsbulp49202AO.tif

Bipoonops tsachila, male bulb, retrolateral view (image by AO, specimen ID: ---49202)

bipootsachmsbulr49202AO.tif

Bipoonops tsachila, male embolus, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmsembd49202AO.tif

Bipoonops tsachila, male embolus, prolateral view (image by AO, specimen ID: ---49202)

bipootsachmsembp49202AO.tif

Bipoonops tsachila, male embolus, retrolateral view (image by AO, specimen ID: ---49202)

bipootsachmsembr49202AO.tif

Bipoonops tsachila, male embolus opening, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmsemod49202AO.tif

Bipoonops tsachila, male palp, prolateral view (image by AO, specimen ID: ---49202)

bipootsachmspalp49202AO.tif

Bipoonops tsachila, male tarsal organ, palp, dorsal view (image by AO, specimen ID: ---49202)

bipootsachmstopd49202AO.tif

Bipoonops tsachila, male palp, retrolateral view (image by AO, specimen ID: ---49202)

bipootsachmspalr49202AO.tif

 

DISTRIBUTION

ECUADOR
Bipoonops tsachila 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 00049202  ECUADOR  Santo Domingo de los Tsachilas    Tinalandia  1 Adult Male  Holotype  721  -0.29888; -79.05250  forest, litter  06 Dec 2009  Niarchos expedition, N. Duperre, E. Tapia  QCAZ 


 
 
 
 
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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