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)
Reductoonops niltepec       Get publication



            Male (PBI_OON 37321). Total length 1.03. CEPHALOTHORAX: Carapace pale orange, without any pattern, pyriform in dorsal view, pars cephalica flat 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 slightly sclerotized triangular projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica finely reticulate, sides finely reticulate, thorax without depressions, fovea absent, 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 dark, needle-like, present, scattered; non-marginal pars thoracica setae dark, needle-like; marginal setae dark, needle-like. Clypeus margin strongly rebordered, sinuous in front view, sloping forward in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present, dark, needle-like. Chilum absent. Eyes six, well developed, ALE largest, ALE oval, PME squared, PLE oval; posterior eye row straight from both above and front; ALE touching, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching. Sternum longer than wide, pale orange, uniform, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, furrow smooth, radial furrow opposite coxae III absent, surface finely reticulate, without pits, microsculpture only at sides, sickle-shaped structures absent, anterior margin unmodified, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, anterior corner unmodified, lateral margin without infra-coxal grooves, distance between coxae II and III greater than distance between coxae I and II, and coxae III and IV, extensions of pre-coxal triangles absent, lateral margins with 3 pairs of lateral projections, 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; without teeth on both promargin and retromargin; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae dark, needle-like, evenly scattered; paturon inner margin with short inter-digitating setae, distal region abruptly narrowed, posterior surface unmodified, promargin with row of flattened setae, inner margin unmodified, laminate groove absent. Labium triangular, not fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; with 6 or more setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, serrula absent, posteromedian part unmodified, same as sternum in sclerotization, tip with squared, anteromedially directed lobe. 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 connected by groove. Pedicel tube short, unmodified, 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 absent. Epigastric scutum weakly sclerotized, not surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum weakly sclerotized, yellow, short, only around epigastric furrow, not fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Spinneret scutum absent. Dorsum setae present, dark, needle-like. Epigastric area setae uniform, dark, needle-like. Postepigastric area setae present, dark, needle-like. Dense patch of setae anterior to spinnerets absent. Colulus present. LEGS: yellow, 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 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 spines absent. 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 not visible; furrow without omega-shaped insertions, without setae. Palp minute, not strongly sclerotized, right and left palps symmetrical, proximal segments yellow; embolus light, prolateral excavation absent, embolus and conductor originating from long, wide common base; 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 not examined; cymbium yellow, ovoid 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; bulb yellow, 1 to 1.5 times as long as cymbium, slender, elongated.
Reductoonops niltepec, male palp, prolateral view (image by LE, specimen ID: ---37321)

reducniltemspalp37321LE.tif

Reductoonops niltepec, male palp, retrolateral view (image by LE, specimen ID: ---37321)

reducniltemspalr37321LE.tif

Reductoonops niltepec, male palp, dorsal view (image by LE, specimen ID: ---37321)

reducniltemspald37321LE.tif

Reductoonops niltepec, male bulb, prolateral view (image by LE, specimen ID: ---37321)

reducniltemsbulp37321LE.tif

Reductoonops niltepec, male bulb, retrolateral view (image by LE, specimen ID: ---37321)

reducniltemsbulr37321LE.tif

Reductoonops niltepec, male embolus, prolateral view (image by LE, specimen ID: ---37321)

reducniltemsembp37321LE.tif

Reductoonops niltepec, male embolus, retrolateral view (image by LE, specimen ID: ---37321)

reducniltemsembr37321LE.tif

Reductoonops niltepec, male tarsal organ, palp, dorsal view (image by LE, specimen ID: ---37321)

reducniltemstopd37321LE.tif

Reductoonops niltepec, male embolus, dorsal view (image by LE, specimen ID: ---37322)

reducniltemsembd37322LE.tif

Reductoonops niltepec, male embolus, retrolateral view (image by LE, specimen ID: ---37322)

reducniltemsembr37322LE.tif

Reductoonops niltepec, male embolus, ventral view (image by LE, specimen ID: ---37321)

reducniltemsembv37321LE.tif

Reductoonops niltepec, male palp, dorsal view (image by LE, specimen ID: ---37322)

reducniltemspald37322LE.tif

Reductoonops niltepec, male palp, ventral view (image by LE, specimen ID: ---37321)

reducniltemspalv37321LE.tif

Reductoonops niltepec, male endites, ventral view (image by LE, specimen ID: ---37321)

reducniltemsendv37321LE.tif

Reductoonops niltepec, male endites, modified setae, ventral view (image by LE, specimen ID: ---37321)

reducniltemsemsv37321LE.tif

Reductoonops niltepec, male spinnerets, posterior view (image by LE, specimen ID: ---37321)

reducniltemsspit37321LE.tif

Reductoonops niltepec, male sternum, ventral view (image by LE, specimen ID: ---37321)

reducniltemsstev37321LE.tif

Reductoonops niltepec, male carapace, anterior view (image by LE, specimen ID: ---37321)

reducniltemscara37321LE.tif

Reductoonops niltepec, male eye group, anterior view (image by LE, specimen ID: ---37321)

reducniltemseyea37321LE.tif


            Female (PBI_OON 21105). Total length 1.15. As in male except as noted. CEPHALOTHORAX: Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Epigastric scutum without lateral joints. LEGS: Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: anterior genitalic process with long posterior portion wider posteriorly than anteriorly, short anterior portion greatly widened.
Reductoonops niltepec, female abdomen, ventral view (image by LE, specimen ID: ---21105)

reducniltefpabdv21105LE.tif

Reductoonops niltepec, female epigynum, epigynal area, ventral view (image by LE, specimen ID: ---21105)

reducniltefpepiv21105LE.tif

Reductoonops niltepec, female internal female genitalia, dorsal view (image by LE, specimen ID: ---21105)

reducniltefpifgd21105LE.tif

Reductoonops niltepec, female internal female genitalia, ventral view (image by LE, specimen ID: ---21105)

reducniltefpifgv21105LE.tif

Reductoonops niltepec, female sternum, ventral view (image by LE, specimen ID: ---21105)

reducniltefpstev21105LE.tif

 

DISTRIBUTION

MEXICO
Reductoonops niltepec 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 Reductoonops niltepec, 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 00037322  MEXICO  Oaxaca  None or Unknown  3 mi SE of Tlacolula  1 Adult Male      16.56000; -96.25000    30 Aug 1966  J., W. Ivie  AMNH 
PBI_OON 00037321  MEXICO  Oaxaca  None or Unknown  2 mi SE Niltepec  2 Adult Male  Holotype    16.32000; -94.33000    16 Aug 1966  J., W. Ivie  AMNH 
PBI_OON 00021105  MEXICO  Oaxaca  None or Unknown  20 miles South of Juchetenango  2 Adult Female    1829  16.04391; -97.08858  oak tree, litter  29 May 1971  S. Peck  AMNH 
PBI_OON 00010892  MEXICO  Oaxaca  None or Unknown  11.6 km N jct. 190/135 on 135  1 Adult Male      17.36044; -96.93264  oak forest  21 Jul 1987  R. Anderson  FMNH 


 
 
 
 
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]