Australian Goblin Spiders Of The Genus Ischnothyreus (Araneae, Oonopidae)
Edward, Karen L.
Harvey, Mark S.
Bulletin of the American Museum of Natural History
2014
2014-06-06
2014
389
1
144
3Q65X
Edward & Harvey, 2014
Edward & Harvey
2014
[715,994,1244,1267]
Arachnida
Oonopidae
Ischnothyreus
Animalia
Araneae
102
102
Arthropoda
species
julianneae
sp. nov.
ETYMOLOGY: The specific name is a patronym in honor of Julianne Waldock, one of the collectors of the holotypeand many other oonopid spiders.
DIAGNOSIS: The male can be distinguished by the slightly swollen and clublike obtusely bent embolic part of the palp and the small basal process of the fang, which has small ridges on the anterior aspect (fig. 61A–D). The female epigynal region has a triangular process that overhangs the anterior edge of an oval epigynal atrium (figs. 60I, 61F).
MALE (PBI_OON 5532, figs. 60A–C, G– H, 61A–E). Total length 1.50. CEPHALO- THORAX: Carapaceyellow-brown, broadly oval in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to between 0.5 and 0.75 times its maximum width, anterolateral corners without extension or projections, surface of elevated portion of pars cephalica strongly reticulate, sides strongly reticulate. Clypeuscurved downward in front view, high, ALE separated from edge of carapace by their radius or more; setae dark. Eyes:ALE largest, ALE circular, PME circular, PLE oval; posterior eye row straight from above; ALE touching, ALE-PLE touching. Sternumas long as wide, pale orange, uniform. Chelicerae, endites, and labium pale orange. Chelicerae straight, anterior face unmodified; fang shape normal, basal process small and rounded, anterior face with small ridges; setae dark; promargin of chelicerae Map 10. Map of northeastern Queensland showing recorded distributions of Ischnothyreus julianneae () and I. stauntoni( m). Wet Tropics upland subregions outlined in grey (see map 1). with one larger denticle. Labium elongated hexagon, not fused to sternum, anterior margin slightly indented at middle, same as sternum in sclerotization; with six or more setae on anterior margin. Endites anteromedian tip with one strong, toothlike projection, much more heavily sclerotized than sternum. ABDOMEN: Cylindrical. Book lung covers elliptical. Dorsal scutum yellowbrown, covering more than 3/4 of abdomen, more than 1/2 to most of abdomen width, middle surface smooth, sides smooth. Epigastric scutum small lateral sclerites absent. Postepigastric scutum pale orange, covering about 2/3 of abdominal length. Dorsum, epigastric area, and postepigastric area setae dark. LEGS: Pale orange, femora and basal half of tibiae darkened. Leg spination: 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. GENITA- LIA: Palp proximal segments dark redbrown; embolus dark; femur shorter than trochanter, without posteriorly rounded lateral dilation; patella about as long as femur; tibia with three trichobothria; cymbium dark red-brown; bulb dark red-brown, more than two times as long as cymbium, stout; embolic region obtusely bent, short (less than 1/2 length of bulb), distally rounded, and slightly clubbed. FEMALE (PBI_OON 5531, figs. 60D–F, I, 61F). Total length 1.78. CEPHALOTHO- RAX: Carapacepars cephalica slightly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less; nonmarginal pars cephalica setae present in one row. Clypeusstraight in front view, low, ALE separated from edge of carapace by less than their radius. Eyes:PME oval; posterior eye row procurved from above. Sternumlonger than wide, lateral margins unmodified. ABDOMEN: Ovoid. Dorsal scutum covering 1/2 to 3/4 of abdomen, between 1/4 and 1/2 abdomen width. Epigastric scutum small lateral sclerites present. Postepigastric scutum pale orange, widely hexagonal, only around epigastric furrow. LEGS: Without color pattern. Leg spination: femora: I p0-1- 1; II p0-1-0; tibiae: I, II p2-2-0; v2-2-0; metatarsi: I, II p1-1-0; v1-1-0. GENITALIA: Ventral view: epigynal atrium oval, triangular process over anterior edge; convoluted duct very dark, thicker than apodemes, weak horizontal sclerotization anterior to epigynal atrium clearly joins posteriorly directed apodemes (figs. 60I, 61F). OTHER MATERIAL EXAMINED: AUS- TRALIA: Queensland: Bakers Blue Mountain, 17 kmW Mount Molloy, vacant lots, 900 m, 16.70000 °S, 145.16670 °E, Jan. 1–18, 1990( ANZSESexpedition, QM S16436, PBI_OON 25940), 1 ♀; Bakers Blue Mountain, 17 kmW Mount Molloy, rainforest, 1050 m, 16.70000 °S, 145.16670 °E, Jan. 1–18, 1990( ANZSESexpedition, QM S16435, PBI_OON 25948), 1 ³, 3 ♀; Bally Knob, summit, open forest, 1100 m, 17.65000 °S, 145.50000 °E, Dec. 6, 1998, to Feb. 6, 1999( G. Monteith, D. Cook, QMS57178, PBI_OON 21998), 1 ³; Copperlode Dam Road, rainforest, 16.97500 °S, 145.70833 °E, July 23–Nov. 26, 1992( R. Raven, P. Lawless, E. Lawless, M. Shaw, QM S24384, PBI_ OON 21694), 1 ³; Kirrama Range, Yuccabine Creek, rainforest, leaf litter, 700 m, 18.20000 °S, 145.75000 °E, Dec. 10, 1986( G. Monteith, G. Thompson, QM S31966, PBI_ OON 25933), 1 ♀; Mount Fisher, Kjellberg Road, rainforest, 1100 m, 17.53333 °S, 145.55000 °E, May 17, 1995( G. Monteith, QM S38141, PBI_OON 21753), 1 ³; Mount Molloy, riparian forest, 400 m, 16.74083 °S, 145.32000 °E, Jan. 1, 1992, to Jan. 1, 1993( S. Burnett, QM S72983, PBI_OON 22112), 1 ³; Mount Molloy, riparian forest, 400 m, 16.74083 °S, 145.32000 °E, Jan. 1, 1992, to Jan. 1, 1993( S. Burnett, QM S79705, PBI_OON 22503), 2 ♀; Paluma Range National Park, Jourama Fallstrack, rainforest, leaf litter, 18.86416 °S, 146.12777 °E, May 7, 2009( K. Edwardand P. Cullen, QM S95976, PBI_ OON 5546), 1 ³; Paluma Range National Park, Jourama Fallstrack, rainforest, leaf litter, 18.86416 °S, 146.12777 °E, May 7, 2009( K. Edwardand P. Cullen, QM S95977, PBI_OON 26308), 1 ³, 1 ♀; Spear Creek, Mount Molloy(site 37), vine forest, leaf litter, 16.70000 °S, 145.40000 °E, Nov. 3–10, 1975( R. Raven, V. Davies, QM S16139, PBI_OON 25883), 6 ³, 10 ♀.
DISTRIBUTION: This species is widespread from Bakers Blue Mountain (east of CU) south to Paluma Range National Park, Wet Tropics Bioregion, in northeastern Queensland(map 10).
S95974, S95975
QM, PBI
Apr. & K. Edward & J. Waldock
Australia
Male
-17.05083
Emerald Creek Falls
1
145.54
Davies Creek National Park
102
102
OON 5532, OON 5531
4
1
Queensland
holotype
S16436, OON 25940
1990-01-01
1990-01-18
1990-01-01
ANZSES, QM, PBI
900
-16.7
Bakers Blue Mountain
1
145.1667
106
106
1
1
Queensland
S16435, OON 25948
1990-01-01
1990-01-18
1990-01-01
ANZSES, QM, PBI
1050
-16.7
Bakers Blue Mountain
1
145.1667
106
106
3
3
Queensland
S57178, OON 21998
1998-12-06
1999-02-06
1998-12-06
QM, PBI
G. Monteith & D. Cook
1100
-17.65
Bally Knob
1
145.5
106
106
1
Queensland
S24384, OON 21694
1992-07-23
1992-11-26
1992-07-23
QM, PBI
R. Raven & P. Lawless & E. Lawless & M. Shaw
-16.975
Copperlode Dam Road
1
145.70833
106
106
1
Queensland
S31966, OON 25933
1986-12-10
QM, PBI
G. Monteith & G. Thompson
700
-18.2
Yuccabine Creek
1
145.75
Kirrama Range
106
106
1
1
Queensland
S38141, OON 21753
1995-05-17
QM, PBI
G. Monteith
1100
-17.53333
Kjellberg Road
1
145.55
Mount Fisher
106
106
1
Queensland
S72983, OON 22112
1992-01-01
1993-01-01
1992-01-01
QM, PBI
S. Burnett
400
-16.74083
Mount Molloy
1
145.32
106
106
1
Queensland
S79705, OON 22503
1992-01-01
1993-01-01
1992-01-01
QM, PBI
S. Burnett
400
-16.74083
Mount Molloy
1
145.32
106
106
2
2
Queensland
S95976
2009-05-07
QM, PBI
K. Edward & P. Cullen
-18.86416
Jourama Falls
1
146.12778
Paluma Range National Park
106
106
OON 5546
1
Queensland
S95977, OON 26308
2009-05-07
QM, PBI
K. Edward & P. Cullen
-18.86416
Jourama Falls
1
146.12778
Paluma Range National Park
106
106
1
1
Queensland
S16139, OON 25883
1975-11-03
1975-11-10
1975-11-03
QM, PBI
R. Raven & V. Davies
-16.7
Mount Molloy
1
145.4
Spear Creek
106
106
10
10
Queensland