(Female redundant descriptions removed)
Ischnothyreus meidamon
Get publication
Male (PBI_OON 5887). Total length 1.46. CEPHALOTHORAX: Carapace pale orange, with dark brown egg-shaped patches behind eyes, broadly oval 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 smooth, sides finely reticulate, thorax without depressions, fovea absent, 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 absent; marginal setae absent. Clypeus margin unmodified, curved downwards 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, ALE largest, ALE circular, PME oval, PLE oval; 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 longer than wide, pale orange, 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 pale orange. Chelicerae slightly divergent, anterior face unmodified; promargin with three or more teeth, retromargin without teeth; 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, posterior surface unmodified, promargin unmodified, inner margin with medial denticles, laminate groove absent. 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 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. Book lung covers large, elliptical, without setae, anterolateral edge unmodified. 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, cuticular outgrowths near pedicel absent. Dorsal scutum weakly sclerotized, pale orange, without color pattern, covering more than 3/4 of abdomen, between 1/4 and 1/2 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 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 needle-like setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter than carapace. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-2-0; II p0-1-0; tibiae: I, II p2-2-0; v2-2-0; metatarsi: I, II p1-1-0; v1-1-0. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Compound microscope; tibia: each with three; metatarsus: each with one. GENITALIA: Epigastric region with sperm pore large, triangular with rounded angles, situated at level of anterior spiracles, unmodified; furrow with pair of omega-shaped insertions, without setae. Palp normal size, strongly sclerotized, right and left palps symmetrical, proximal segments dark red-brown; embolus light, prolateral excavation absent; trochanter normal size, with ventral projection; femur normal size, shorter than trochanter, without posteriorly rounded lateral dilation, attaching to patella basally; patella longer than femur, not enlarged, without prolateral row of ridges, setae unmodified; tibia trichobothria with 2 trichobothria; 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, without distal patch of setae; bulb dark red-brown, 1 to 1.5 times as long as cymbium, stout, tapering apically.
Ischnothyreus meidamon, male palp, prolateral view (image by KE, specimen ID: ---05887)
ischnmeidamdpalp05887KE.tif
| Ischnothyreus meidamon, male palp, retrolateral view (image by KE, specimen ID: ---05887)
ischnmeidamdpalr05887KE.tif
| Ischnothyreus meidamon, male chelicerae, anterior view (image by KE, specimen ID: ---05887)
ischnmeidamdchea05887KE.tif
| Ischnothyreus meidamon, male chelicerae, posterior view (image by KE, specimen ID: ---05887)
ischnmeidamdcheT05887KE.tif
| Ischnothyreus meidamon, male palp, dorsal view (image by KE, specimen ID: ---05887)
ischnmeidamdpald05887KE.tif
| Ischnothyreus meidamon, male carapace, anterior view (image by KE, specimen ID: ---05887)
ischnmeidampcara05887KE.tif
| Ischnothyreus meidamon, male habitus, dorsal view (image by KE, specimen ID: ---05887)
ischnmeidamphabd05887KE.tif
| Ischnothyreus meidamon, male habitus, lateral view (image by KE, specimen ID: ---05887)
ischnmeidamphabl05887KE.tif
| Ischnothyreus meidamon, male habitus, ventral view (image by KE, specimen ID: ---05887)
ischnmeidamphabv05887KE.tif
| Ischnothyreus meidamon, male sternum, ventral view (image by KE, specimen ID: ---05887)
ischnmeidampstev05887KE.tif
|
Female (PBI_OON 5595). Total length 1.50. As in male except as noted. CEPHALOTHORAX: Carapace without any pattern, pars cephalica slightly elevated in lateral view. Eyes posterior eye row procurved from above. Mouthparts: paturon inner margin unmodified. ABDOMEN: Pedicel scutum not extending far dorsal of pedicel. Dorsal scutum covering 1/2 to 3/4 of abdomen. Epigastric scutum small lateral sclerites present, without lateral joints. Postepigastric scutum pale orange, widely hexagonal, covering about 1/3 of the abdominal length, not fused to epigastric scutum, with short posteriorly directed lateral apodemes. Dense patch of setae anterior to spinnerets present. Colulus present. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-2-0; II p0-1-0; tibiae: I, II p2-2-0; v2-2-0; metatarsi: I, II p1-1-0; v1-1-0. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Compound microscope.
Ischnothyreus meidamon, female epigynum, epigynal area, ventral view (image by KE, specimen ID: ---05595)
ischnmeidafdepiv05595KE.tif
| Ischnothyreus meidamon, female epigynum, epigynal area, ventral view (image by KE, specimen ID: ---05595)
ischnmeidafpepiv05595KE.tif
| Ischnothyreus meidamon, female habitus, dorsal view (image by KE, specimen ID: ---05595)
ischnmeidafphabd05595KE.tif
| Ischnothyreus meidamon, female habitus, ventral view (image by KE, specimen ID: ---05595)
ischnmeidafphabv05595KE.tif
|
|
DISTRIBUTION
AUSTRALIA
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 meidamon, Discover Life Map
|
|
|
|
MATERIAL EXAMINED
|
PBI USI |
Country |
State |
Division |
Locality |
Sex |
Type Status |
Elevation(m) |
GPS Coordinate |
Habitat |
Collection_Date |
Collector |
Inst. Code |
PBI_OON 00005595 |
AUSTRALIA |
Queensland |
|
Mt Webb, 3 km NNE |
8 Mixed |
Paratype |
|
-15.05000; 145.15000 |
rainforest, Leaf Litter |
01 Oct 1980 |
T. Weir |
ANIC |
PBI_OON 00005543 |
AUSTRALIA |
Queensland |
|
Cedar Bay NP; Bloomfield Rd |
2 Adult Female |
|
|
-15.79638; 145.30194 |
rainforest, Leaf Litter |
12 May 2009 |
K. Edward & P. Cullen |
QM |
PBI_OON 00005887 |
AUSTRALIA |
Queensland |
|
Mt Webb, 3 km NNE |
1 Adult Male |
Holotype |
|
-15.05000; 145.15000 |
rainforest, Leaf Litter |
01 Oct 1980 |
T. Weir |
ANIC |
PBI_OON 00025814 |
AUSTRALIA |
Queensland |
|
Cape Tribulation, Pilgrim Sands |
1 Adult Male |
|
5 |
-16.08333; 145.43330 |
rainforest |
24 Aug 1988 |
R. Raven, J. Gallon, T. Churchill |
QM |
PBI_OON 00025868 |
AUSTRALIA |
Queensland |
|
Mt Webb National Park |
4 Mixed |
|
200 |
-15.06666; 145.11666 |
rainforest, Leaf Litter |
28 Sept 1980 |
T. Weir |
ANIC |
PBI_OON 00025741 |
AUSTRALIA |
Queensland |
|
Mt Webb, 3 km NNE |
5 Mixed |
|
|
-15.05000; 145.15000 |
rainforest, Leaf Litter |
30 Apr 1981 |
A. Calder, J. Freehan |
ANIC |
PBI_OON 00025823 |
AUSTRALIA |
Queensland |
|
Moses Creek, 4 km N. by E. of Mt Finnigan |
3 Mixed |
|
|
-15.78333; 145.28333 |
rainforest, Leaf Litter |
14 Oct 1980 |
Weir, T.A. |
ANIC |
PBI_OON 00025739 |
AUSTRALIA |
Queensland |
|
2.0km WNW Cape Tribulation. Site 2 |
1 Adult Male |
|
50 |
-16.08333; 145.43330 |
rainforest |
23 Sept 1982 |
G. Monteith, D. Yeates, G. Thompson |
QM |
PBI_OON 00025821 |
AUSTRALIA |
Queensland |
|
Moses Creek, 4 km N. by E. of Mt Finnigan |
6 Mixed |
|
|
-15.78333; 145.28333 |
rainforest, Leaf Litter |
14 Oct 1980 |
Weir, T.A. |
ANIC |
|
|
|