(Female redundant descriptions removed)
Ischnothyreus darwini
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Male (PBI_OON 5889). Total length 1.26. CEPHALOTHORAX: Carapace olive-green, with dark brown egg-shaped patches behind eyes, ovoid in dorsal view, pars cephalica strongly 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 strongly reticulate, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, 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 absent; marginal setae light, needle-like. Clypeus margin unmodified, straight in front view, vertical in lateral view, low, ALE separated from edge of carapace by less than their radius, median projection absent; setae present, light, needle-like. Eyes six, well developed, posterior eye row from above very slightly procurved but mostly straight, ALE largest, all eyes circular; posterior eye row straight from above, procurved from front; ALE touching, ALE-PLE touching, PME touching throughout most of their length, PLE-PME touching. Sternum as long as wide, yellow, uniform, not fused to carapace, median concavity absent, without 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, 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 surface, without hair tufts. Mouthparts: Chelicerae, endites and labium yellow. Chelicerae straight, anterior face unmodified; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light; paturon distal region unmodified, inner margin unmodified. Labium elongated hexagon, 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, 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 white, without color pattern. Posterior spiracles 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 weakly sclerotized, olive-green, 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 2/3 of abdominal length, 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. Spinneret scutum with fringe of needle-like 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. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I, II p0-0-2; tibiae: I p2-2-0; v2-2-0; II p2-1-1; v2-1-1; metatarsi: I, II p1-1-0; v1-1-0; (leg I: spines on femora less than leg segment width, spines on tibia and metatarsus longer than segment width, leg II: spines on femora less than leg segment width, spines on tibia and metatarsus longer than segment width. ). Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Compound microscope; tibia: I three, II three; metatarsus: I one, II one; base rounded. GENITALIA: Epigastric region with sperm pore large, circular, situated at level of anterior spiracles, unmodified; furrow without setae. Palp normal size, strongly sclerotized, right and left palps symmetrical, proximal segments dark red-brown; embolus dark; trochanter normal size, with ventral projection; femur normal size, shorter than trochanter, attaching to patella basally; patella about as long as femur, not enlarged, setae unmodified; tibia trichobothria with 1 trichobothrium; cymbium dark red-brown, ovoid in dorsal view, fused with bulb but with clearly defined seam between, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae; bulb dark red-brown, more than 2 times as long as cymbium, stout, tapering apically.
Ischnothyreus darwini, male chelicerae, anterior view (image by KE, specimen ID: ---05889)
ischndarwimdchea05889KE.tif
| Ischnothyreus darwini, male chelicerae, posterior view (image by KE, specimen ID: ---05889)
ischndarwimdcheT05889KE.tif
| Ischnothyreus darwini, male palp, dorsal view (image by KE, specimen ID: ---05889)
ischndarwimdpald05889KE.tif
| Ischnothyreus darwini, male palp, prolateral view (image by KE, specimen ID: ---05889)
ischndarwimdpalp05889KE.tif
| Ischnothyreus darwini, male palp, retrolateral view (image by KE, specimen ID: ---05889)
ischndarwimdpalr05889KE.tif
| Ischnothyreus darwini, male carapace, anterior view (image by KE, specimen ID: ---05889)
ischndarwimpcara05889KE.tif
| Ischnothyreus darwini, male habitus, dorsal view (image by KE, specimen ID: ---05889)
ischndarwimphabd05889KE.tif
| Ischnothyreus darwini, male habitus, lateral view (image by KE, specimen ID: ---05889)
ischndarwimphabl05889KE.tif
| Ischnothyreus darwini, male habitus, ventral view (image by KE, specimen ID: ---05889)
ischndarwimphabv05889KE.tif
| Ischnothyreus darwini, male sternum, ventral view (image by KE, specimen ID: ---05889)
ischndarwimpstev05889KE.tif
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Female (PBI_OON 5892). Total length 1.34. As in male except as noted. CEPHALOTHORAX: Carapace without any pattern, broadly oval in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, surface of elevated portion of pars cephalica smooth; non-marginal pars cephalica setae dark; marginal setae dark. Clypeus setae dark. Eyes PME oval, PLE oval. Sternum pale orange; setae dark. Female palp spines absent; tarsus unmodified. ABDOMEN: cylindrical, pointed posteriorly; dorsum soft portions pale orange. Pedicel scutum not extending far dorsal of pedicel. Dorsal scutum covering 1/2 to 3/4 of abdomen, between 1/4 and 1/2 abdomen width. Epigastric scutum without lateral joints. Postepigastric scutum pale orange, widely hexagonal, covering about 1/3 of the abdominal length, not fused to epigastric scutum. Dorsum setae serrate. Epigastric area frontal setae thickened, light, serrate. Postepigastric area setae serrate. Dense patch of setae anterior to spinnerets present. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-0-2; II p0-0-1; tibiae: I p2-2-0; r2-2-0; II p2-1-0; r2-1-0; metatarsi: I, II p1-1-0; r1-1-0. Trichobothria examined with Compound microscope.
Ischnothyreus darwini, female epigynum, epigynal area, ventral view (image by KE, specimen ID: ---05892)
ischndarwifdepiv05892KE.tif
| Ischnothyreus darwini, female epigynum, epigynal area, ventral view (image by KE, specimen ID: ---05892)
ischndarwifpepiv05892KE.tif
| Ischnothyreus darwini, female habitus, dorsal view (image by KE, specimen ID: ---05892)
ischndarwifphabd05892KE.tif
| Ischnothyreus darwini, female habitus, lateral view (image by KE, specimen ID: ---05892)
ischndarwifphabl05892KE.tif
| Ischnothyreus darwini, female habitus, ventral view (image by KE, specimen ID: ---05892)
ischndarwifphabv05892KE.tif
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DISTRIBUTION
AUSTRALIA
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Ischnothyreus darwini, Discover Life Map
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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 00025693 |
AUSTRALIA |
Northern Territory |
|
Mary River National Park, Bryan Creek monsoon patch |
1 Adult Male |
Paratype |
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-12.66083; 131.78194 |
monsoon rainforest, rotted log litter |
25 Apr 2008 |
K. Edward & P. Cullen |
WAMP |
PBI_OON 00025703 |
AUSTRALIA |
Northern Territory |
|
Howard Springs National Park, forest walk trail |
1 Adult Female |
Paratype |
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-12.45750; 131.05194 |
spring fed creek, moist litter |
09 May 2008 |
K. Edward & P. Cullen |
WAMP |
PBI_OON 00005992 |
AUSTRALIA |
Northern Territory |
|
Mt Brockman, Radon Ck |
1 Adult Female |
|
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-12.75000; 132.88330 |
wet rainforest, Leaf Litter |
14 Jul 1979 |
G. Monteith |
QM |
PBI_OON 00025700 |
AUSTRALIA |
Northern Territory |
|
Umbrawarra Gorge, gorge walk |
1 Adult Male |
Paratype |
|
-13.96583; 131.69388 |
spring fed creek, moist litter |
03 May 2008 |
K. Edward & P. Cullen |
MNT |
PBI_OON 00025697 |
AUSTRALIA |
Northern Territory |
|
Kakadu National Park, Mary River Area, between kambolgie and yirimikmik tracks |
1 Adult Female |
Paratype |
|
-13.50833; 132.42500 |
spring fed creek, moist litter |
02 May 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005970 |
AUSTRALIA |
Northern Territory |
|
Kakadu National Park, Sth Alligator River area, Gu-ngarre monsoon forest walk |
4 Mixed |
Paratype |
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-12.67777; 132.48916 |
monsoon rainforest, moist litter |
24 Apr 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00025692 |
AUSTRALIA |
Northern Territory |
|
Mary River National Park, Bryan Creek monsoon patch |
1 Adult Female |
Paratype |
|
-12.66083; 131.78194 |
monsoon rainforest, rotted log litter |
25 Apr 2008 |
K. Edward & P. Cullen |
WAMP |
PBI_OON 00025704 |
AUSTRALIA |
Northern Territory |
|
Howard Springs National Park, forest walk trail |
1 Adult Male |
Paratype |
|
-12.45750; 131.05194 |
spring fed creek, moist litter |
09 May 2008 |
K. Edward & P. Cullen |
WAMP |
PBI_OON 00023651 |
AUSTRALIA |
Northern Territory |
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Fish River Station, F 26, Heath woodland on sandstone |
2 Adult Female |
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-14.04750; 130.76638 |
riparian monsoon forest, litter |
22 Apr 2012 |
R. Whyte |
QM |
PBI_OON 00005965 |
AUSTRALIA |
Northern Territory |
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Radon Ck |
1 Adult Female |
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-12.75000; 132.88330 |
dry rainforest, Leaf Litter |
14 Nov 1979 |
R.J. Raven |
QM |
PBI_OON 00025699 |
AUSTRALIA |
Northern Territory |
|
Umbrawarra Gorge, gorge walk |
1 Adult Female |
Paratype |
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-13.96583; 131.69388 |
spring fed creek, moist litter |
03 May 2008 |
K. Edward & P. Cullen |
MNT |
PBI_OON 00025696 |
AUSTRALIA |
Northern Territory |
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Kakadu National Park. Mary River Area, boulder creek walk |
1 Adult Male |
Paratype |
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-13.52527; 132.45361 |
monsoon rainforest, moist litter |
01 May 2008 |
K. Edward & P. Cullen |
WAMP |
PBI_OON 00025702 |
AUSTRALIA |
Northern Territory |
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Litchfield National Park, Wangi falls |
1 Adult Female |
Paratype |
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-13.15250; 130.68416 |
spring fed creek, moist litter |
07 May 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005969 |
AUSTRALIA |
Northern Territory |
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Howard Springs National Park, forest walk trail |
6 Mixed |
Paratype |
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-12.45750; 131.05194 |
spring fed creek, rotted log litter |
09 May 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005971 |
AUSTRALIA |
Northern Territory |
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Kakadu National Park. Mary River Area, boulder creek walk |
9 Mixed |
Paratype |
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-13.52527; 132.45361 |
spring fed creek, moist litter |
01 May 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005889 |
AUSTRALIA |
Northern Territory |
|
Mary River National Park, Bryan Creek monsoon patch |
1 Adult Male |
Holotype |
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-12.66083; 131.78194 |
rainforest, under logs |
25 Apr 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005967 |
AUSTRALIA |
Northern Territory |
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North Point, Kapalga |
2 Juvenile sex unknown |
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4 |
-12.41666; 132.36666 |
rainforest, Leaf Litter |
11 Nov 1979 |
R.J. Raven |
QM |
PBI_OON 00025695 |
AUSTRALIA |
Northern Territory |
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Kakadu National Park. Mary River Area, boulder creek walk |
1 Adult Female |
Paratype |
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-13.52527; 132.45361 |
monsoon rainforest, moist litter |
01 May 2008 |
K. Edward & P. Cullen |
WAMP |
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AUSTRALIA |
Northern Territory |
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Kakadu National Park, Mary River Area, between kambolgie and yirimikmik tracks |
4 Mixed |
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-13.50833; 132.42500 |
spring fed creek, moist litter |
02 May 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005892 |
AUSTRALIA |
Northern Territory |
|
Mary River National Park, Bryan Creek monsoon patch |
1 Adult Female |
Paratype |
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-12.66083; 131.78194 |
monsoon rainforest, rotted log litter |
25 Apr 2008 |
K. Edward & P. Cullen |
MNT |
PBI_OON 00005891 |
AUSTRALIA |
Northern Territory |
|
Mary River National Park, Bryan Creek monsoon patch |
1 Adult Male |
Paratype |
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-12.66083; 131.78194 |
monsoon rainforest, rotted log litter |
25 Apr 2008 |
K. Edward & P. Cullen |
WAMP |
PBI_OON 00005968 |
AUSTRALIA |
Northern Territory |
|
Mary River National Park, Bryan Creek monsoon patch |
4 Mixed |
Paratype |
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-12.66083; 131.78194 |
spring fed creek, moist litter |
25 Apr 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00005884 |
AUSTRALIA |
Northern Territory |
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South Alligator Inn |
3 Mixed |
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5 |
-12.66666; 132.50000 |
rainforest, under logs |
10 Nov 1979 |
R.J. Raven |
QM |
|
AUSTRALIA |
Northern Territory |
|
Umbrawarra Gorge, gorge walk |
4 Mixed |
|
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-13.96583; 131.69388 |
spring fed creek, moist litter |
03 May 2008 |
K. Edward & P. Cullen |
MNT |
PBI_OON 00025698 |
AUSTRALIA |
Northern Territory |
|
Kakadu National Park, Mary River Area, between kambolgie and yirimikmik tracks |
1 Adult Male |
Paratype |
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-13.50833; 132.42500 |
spring fed creek, moist litter |
02 May 2008 |
K. Edward & P. Cullen |
NTM |
PBI_OON 00025691 |
AUSTRALIA |
Northern Territory |
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Kakadu National Park, Sth Alligator River area, Gu-ngarre monsoon forest walk |
1 Adult Female |
Paratype |
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-12.67777; 132.48222 |
monsoon rainforest, leaf litter around decaying tree trunk |
24 Apr 2008 |
K. Edward & P. Cullen |
NTM |
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