Welcome Locality Data Entry        | Links | About Oonopidae | Outreach | Sign In 
Home | Project Description | Investigators | Species Pages |
Home >> Species Pages >>
OONOPIDAE SPECIES DESCRIPTION
(1) List all species     
OR       (2) Search by: Select the genus
Select the species
(Female redundant descriptions removed)
Neoxyphinus yekuana       Get publication



            Male (PBI_OON 44325). Total length 1.99. CEPHALOTHORAX: Carapace orange-brown, without any pattern, ovoid in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, 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 strongly reticulate, thorax without depressions, fovea absent, 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, scattered; non-marginal pars thoracica setae light, needle-like; marginal setae light, needle-like. Clypeus margin strongly rebordered, 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, light, needle-like. Chilum absent. Eyes six, well developed, ALE largest, all eyes circular; 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 touching. Sternum as long as wide, orange-brown, uniform, fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, furrow with rows of small pits, radial furrow opposite coxae III absent, surface smooth, covered with small round pits, sickle-shaped structures absent, anterior margin with continuous transverse groove, 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 present, lateral margins unmodified, without posterior hump; setae sparse, light, needle-like, evenly scattered, originating from small pits, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae slightly divergent, anterior face unmodified; with one tooth on both promargin and retromargin; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon inner margin with pairs of enlarged setae, distal region unmodified, posterior surface unmodified, promargin with row of flattened setae, inner margin with medial denticles, laminate groove absent. Labium rectangular, not 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 excavated, serrula absent, 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 pale orange, 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 not 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 full length of abdomen, no soft tissue visible from above, not fused to epigastric scutum, middle surface reticulate, sides reticulate, anterior half without projecting denticles. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, orange-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 absent. Dorsum setae present, light, needle-like. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Spinneret scutum without fringe of setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus absent. 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 I Emeritís glands absent, 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. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): tibiae: I v4-4-2; metatarsi: I v2-2-2. 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 present; trochanter normal size, unmodified; femur normal size, one to two 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 not examined; cymbium pale orange, ovoid in dorsal view, completely fused with bulb, no seam visible, extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae; bulb pale orange, shorter than cymbium, stout, spherical.
Neoxyphinus yekuana, male abdomen, ventral view (image by DM, specimen ID: ---44327)

neoxyyekuampabdv44327DM.tif

Neoxyphinus yekuana, male carapace, anterior view (image by DM, specimen ID: ---44327)

neoxyyekuampcara44327DM.tif

Neoxyphinus yekuana, male carapace, lateral view (image by DM, specimen ID: ---44327)

neoxyyekuampcarl44327DM.tif

Neoxyphinus yekuana, male habitus, dorsal view (image by DM, specimen ID: ---44327)

neoxyyekuamphabd44327DM.tif

Neoxyphinus yekuana, male sternum, ventral view (image by DM, specimen ID: ---44327)

neoxyyekuampstev44327DM.tif

Neoxyphinus yekuana, male palp, prolateral view (image by DM, specimen ID: ---44327)

neoxyyekuamppalp44327DM.tif

Neoxyphinus yekuana, male palp, retrolateral view (image by DM, specimen ID: ---44327)

neoxyyekuamppalr44327DM.tif

Neoxyphinus yekuana, male palp, ventral view (image by DM, specimen ID: ---44327)

neoxyyekuamppalv44327DM.tif

Neoxyphinus yekuana, male embolus, prolateral view (image by DM, specimen ID: ---44311)

neoxyyekuamsembp44311DM.tif

Neoxyphinus yekuana, male endites, ventral view (image by DM, specimen ID: ---44311)

neoxyyekuamsendv44311DM.tif


            Female (PBI_OON 44326). Total length 1.78. As in male except as noted. CEPHALOTHORAX: Carapace broadly oval in dorsal view. Clypeus clypeus very high. Sternum with radial furrows between coxae I-II, II-III, III-IV. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Pedicel scutum extending far dorsal of pedicel. Dorsal scutum middle surface finely reticulate, sides finely reticulate. Epigastric scutum without lateral joints. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): tibiae: I v4-4-2; II v4-2-2; metatarsi: I v2-2-2; II v2-2-0. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria not examined.
Neoxyphinus yekuana, female abdomen, dorsal view (image by NM, specimen ID: ---44326)

neoxyyekuafpabdd44326NM.tif

Neoxyphinus yekuana, female abdomen, ventral view (image by NM, specimen ID: ---44326)

neoxyyekuafpabdv44326NM.tif

Neoxyphinus yekuana, female carapace, anterior view (image by NM, specimen ID: ---44326)

neoxyyekuafpcara44326NM.tif

Neoxyphinus yekuana, female carapace, dorsal view (image by NM, specimen ID: ---44326)

neoxyyekuafpcard44326NM.tif

Neoxyphinus yekuana, female epigynum, epigynal area, ventral view (image by NM, specimen ID: ---44326)

neoxyyekuafpepiv44326NM.tif

Neoxyphinus yekuana, female habitus, lateral view (image by NM, specimen ID: ---44326)

neoxyyekuafphabl44326NM.tif

Neoxyphinus yekuana, female sternum, ventral view (image by NM, specimen ID: ---44326)

neoxyyekuafpstev44326NM.tif

 

DISTRIBUTION


Unknown.
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 Neoxyphinus yekuana, Discover Life Map
 

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
 
©Copyright 2006-2022. All Rights Reserved.
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.
If the format of any material on the website interferes with your ability to access that material, please contact us at [email protected]