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OONOPIDAE SPECIES DESCRIPTION
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Ischnothyreus florifer       Get publication



            Male (PBI_OON 12214). Total length 1.80. CEPHALOTHORAX: Carapace orange-brown, with dark brown egg-shaped patches behind eyes, 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 without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica finely reticulate, sides finely reticulate, thorax without depressions, fovea present, whole surface of carapace finely reticulate, without radiating rows of pits; lateral margin straight, smooth, without 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 unmodified, straight 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, eyregion strongly protruding, ALE largest, ALE circular, PME oval, PLE oval; posterior eye row procurved from both above and 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 longer than 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 smooth, without pits, microsculpture absent, 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, radial furrwos between coxae barely visible, appearing only as slightly darker band; setae sparse, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, anterior face unmodified, anterior face with many ridges, one medial denticle enlarged; 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 scattered setae, distal region unmodified, inner margin with medial denticles. Labium triangular, fused to sternum, anterior margin not indented at middle, same as sternum in sclerotization; subdistal portion with unmodified setae. Endites distally not excavated, anteromedian tip with one strong, tooth-like projection, posteromedian part unmodified, same as sternum in sclerotization, endites distally strongly sclerotized. 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. 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. Dorsal scutum weakly sclerotized, pale orange, 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 striated, sides striated, anterior half without projecting denticles. Epigastric scutum weakly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum weakly sclerotized, pale orange, short, almost rectangular, covering about 3/4 of abdominal length, fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes, few longer setae on anterior margin of sperm pore. Spinneret scutum present, incomplete ring. Dorsum setae present, light, needle-like. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Spinneret scutum with fringe of long setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane without setae. Colulus represented only by setae. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I longer than carapace, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi III and IV weak ventral scopula absent. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-1-1; II p0-0-1; tibiae: I, II p2-1-1; r2-1-1; metatarsi: I, II p1-1-0; r1-1-0. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria examined with Stereo microscope; tibia: I three, II three, III three, IV zero; metatarsus: each with one. GENITALIA: Epigastric region with sperm pore large, circular, situated at level of anterior spiracles, unmodified; furrow without omega-shaped insertions, without setae. Palp normal size, strongly sclerotized, right and left palps symmetrical, proximal segments brown; embolus embolus not clearly discernible; trochanter normal size, with ventral projection; femur normal size, one to two times as long as trochanter, attaching to patella basally; patella about as long as femur, not enlarged; tibia trichobothria with 3 trichobothria; cymbium brown, narrow in dorsal view, fused with bulb but with clearly defined seam between, not extending beyond distal tip of bulb, without stout setae, without distal patch of setae; bulb brown, more than 2 times as long as cymbium, stout, tapering apically, middle part with ventral protuberance and lobe, distal part stout, tip of bulb with thin flower-like outgrowth ventrally.
Ischnothyreus florifer, male habitus, dorsal view (image by YK, specimen ID: ---12214)

ischnflorimphabd12214YK.tif

Ischnothyreus florifer, male habitus, ventral view (image by YK, specimen ID: ---12214)

ischnflorimphabv12214YK.tif

Ischnothyreus florifer, male habitus, lateral view (image by YK, specimen ID: ---12214)

ischnflorimphabl12214YK.tif

Ischnothyreus florifer, male carapace, dorsal view (image by YK, specimen ID: ---12214)

ischnflorimpcard12214YK.tif

Ischnothyreus florifer, male carapace, ventral view (image by YK, specimen ID: ---12214)

ischnflorimpcarv12214YK.tif

Ischnothyreus florifer, male carapace, lateral view (image by YK, specimen ID: ---12214)

ischnflorimpcarl12214YK.tif

Ischnothyreus florifer, male carapace, anterior view (image by YK, specimen ID: ---12214)

ischnflorimpcara12214YK.tif

Ischnothyreus florifer, male abdomen, ventral view (image by YK, specimen ID: ---12214)

ischnflorimpabdv12214YK.tif

Ischnothyreus florifer, male bulb, prolateral view (image by YK, specimen ID: ---12214)

ischnflorimpbulp12214YK.tif

Ischnothyreus florifer, male chelicerae, prolateral view (image by YK, specimen ID: ---12214)

ischnflorimpchep12214YK.tif

Ischnothyreus florifer, male palp, prolateral view (image by YK, specimen ID: ---12214)

ischnflorimdpalp12214YK.tif

Ischnothyreus florifer, male palp, retrolateral view (image by YK, specimen ID: ---12214)

ischnflorimdpalr12214YK.tif

 

DISTRIBUTION

MALAYSIA
Ischnothyreus florifer 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 Ischnothyreus florifer, 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 00012214  MALAYSIA  Sarawak    Bako National Park  1 Adult Male  Paratype    1.73000; 110.46000  swamp forest  30 Mar 1985  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00031461  MALAYSIA  Sarawak    Matang reserve  1 Adult Male  Holotype  305  ;   swamp forest  25 Mar 1985  C.L. Deeleman and P.R. Deeleman  RMNH 


 
 
 
 
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
 
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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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