Ischnothyreus raveni, Edward & Harvey, 2014

Edward, Karen L. & Harvey, Mark S., 2014, Australian Goblin Spiders Of The Genus Ischnothyreus (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2014 (389), pp. 1-144 : 110-115

Ischnothyreus raveni , new species Figures 64–65 , map 11

TYPES: AUSTRALIA: Queensland: Male holotype, female allotype, and one female paratype from Hinchinbrook Island, Macushla Cove , 18.22666 ° S, 146.21777 ° E (3 May 2009, K. Edward and P. Cullen), deposited in QM (³ holotype: QM S95995 , PBI _ OON 00005641 ; ♀ allotype and paratype: QM S95996 , PBI _ OON 00005642 ) .

ETYMOLOGY: The specific epithet is a patronym in honor of Robert J. Raven of the Queensland Museum (Brisbane), in recognition of his enormous contribution to taxonomy and collections of Queensland spiders.

DIAGNOSIS: Males of this species can be distinguished by the slight bifurcated distal tip of the obtusely bent embolic region of the palp (fig. 65A–D) and the fang basal process, which has small ridges on the anterior aspect (fig. 65C). Convoluted duct of the female epigynum becoming thinner posteriorly and ending at a darkened circle. The process overhanging the epigynal atrium is heavily sclerotized, broad, and relatively straight with a very slight medial indent (figs. 64I, 65F).

MALE (PBI_OON 5641, figs. 64A–C, G– H, 65A–E). Total length 1.75. CEPHALO- THORAX: Carapace pale orange, 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 finely reticulate, sides finely reticulate. Clypeus margin unmodified, curved 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 procurved from above; ALE touching, ALE-PLE touching. Sternum longer than wide, pale orange, uniform; setae dark, evenly scattered. Chelicerae, endites, and labium pale orange. Chelicerae straight, anterior face unmodified; promargin with one larger denticle; fang shape normal, with prominent basal process, small ridges on anterior aspect of basal process; setae dark. Labium elongated hexagon, not fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; with six or more setae on anterior margin. Endites anteromedian tip with one strong, toothlike projection, same as sternum in sclerotization. ABDOMEN: Cylindrical; dorsum soft portions white. Book lung covers elliptical. Dorsal scutum pale orange, 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 present. Postepigastric scutum pale orange, covering about 1/2 of abdominal length. Dorsum, epigastric area, and postepigastric area setae dark. LEGS: Pale orange, without color pattern; patella plus tibia I shorter than carapace. Leg spination: femora: I p0- 2-1; 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; patella about as long as femur; cymbium dark red-brown; bulb dark redbrown, more than 2 times as long as cymbium, stout; embolic region elongate, obtusely bent, curved distally toward prolateral

aspect, distal tip slightly bifurcated (figs. 4H, 65A, B).

FEMALE (PBI_OON 5642, figs. 64D–F, I, 65F). Total length 2.20. CEPHALOTHORAX: Carapace pars cephalica slightly elevated in

lateral view, anteriorly narrowed to 0.49 times its maximum width or less. Clypeus low, ALE separated from edge of carapace by less than their radius. ABDOMEN: Ovoid. Dorsal scutum covering 1/2 to 3/4 of abdomen, between 1/4 and 1/2 abdomen width. Postepigastric scutum widely hexagonal, only around epigastric furrow. LEGS: Leg spination: femora: I p0-2-1; 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: strong horizontal sclerotization anterior to rounded epigynal atrium, thick, clearly joins posteriorly direct- ed lateral apodemes; heavily sclerotized process overhanging epigynal atrium mostly with straight edge, slight medial indent; convoluted duct much thinner than apodemes in posterior section, widening anteriorly (figs. 64I, 65F).

OTHER MATERIAL EXAMINED: AUS- TRALIA: Queensland: 1.6 km ENE of One Tree Hill, semievergreen vine thicket, 160 m, 25.28417 ° S, 151.91830 ° E, Sept. 26–Dec. 14, 1999 (D. and I. Cook, QM S22115 , PBI_OON

Map 11. Map of Queensland showing recorded distributions of Ischnothyreus raveni (N) and I. eungella (Z).

20839), 1 ♀; 1.6 km ENE of One Tree Hill , semievergreen vine thicket, 160 m, 25.28417 ° S, 151.91830 ° E, Sept. 26–Dec. 14, 1999 (D. and I. Cook, QM S86144 , PBI _OON 26262), 1 ³ ; 18.5 km W of St. Lawrence , rainforest, 240 m, 22.35067 ° S, 149.33880 ° E, Mar. 25, 2001 (G. Monteith, QM S69579 , PBI _OON 22122), 1 ♀ ; 3.5 km SE Fairlies Knob, Hoop pine scrub, 120 m, 25.53333 ° S, 152.31666 ° E, Oct. 20–Dec. 20, 2000 (D. Cook, G. Monteith, QM S78671, PBI _ OON 7141 ), 1 ♀ ; Bahrs Scrub, Beenleigh , rainforest, 200 m, 27.75000 ° S, 153.16670 ° E, Apr. 30, 1980, to Jan. 29, 1981 (G. and S. Monteith, QM S16017 , PBI _OON 25957), 4 ³, 4 ♀ ; Bellenden Ker Range , cable tower 3, rainforest, leaf litter, 1054 m, 17.26667 ° S, 145.85000 ° E, Oct. 17–24, 1981 (EARTHWATCH/ Qld Museum, QM S27896 , PBI _OON 25935), 1 ³ ; Bellenden Ker Range, Summit TV Station, rainforest, 1560 m, 17.26667 ° S, 145.85000 ° E, Nov. 1–7, 1981 (EARTHWATCH/ Qld Museum, QM S27838 , PBI _OON 22146), 1 ³ ; Belmont Hills Bushlands , site 1, dry eucalypt woodland, 27.50784 ° S, 153.11750 ° E, Oct. 30– Dec. 1, 2003 (Queensland Museum Party, QM S65212 , PBI _OON 22187), 1 ♀ ; Belmont Hills Bushlands , site 1, dry eucalypt woodland, 80 m, 27.51305 ° S, 153.11805 ° E, Feb. 19, 2004 (Queensland Museum Party, QM S79870 , PBI _OON 22833), 1 ³, 1 ♀ ; Belmont Hills Bushlands , site 1, dry eucalypt woodland, 27.50784 ° S, 153.11750 ° E, Mar. 1–31, 2004 (Queensland Museum Party, QM S65177 , PBI _OON 25912), 1 ♀ ; Belmont Hills Bushlands , site 1, dry eucalypt woodland, 27.50784 ° S, 153.11750 ° E, Jan. 30–Mar. 1, 2004 (Queensland Museum Party, QM S65174 , PBI _OON 25926), 1 ³ ; Black Rock Scrub , rainforest, 350 m, 28.12200 ° S, 152.65800 ° E, Dec. 2, 2000, to May 13, 2001 (G. Monteith, QM S78699, PBI _ OON 7161 ), 2 ³, 1 ♀ ; Black Rock Scrub , rainforest, 350 m, 28.12200 ° S, 152.65800 ° E, Oct. 6–Dec. 3, 2000 (C. Burwell, QM S72826 , PBI _OON 21961), 2 ³, 1 ♀ ; Black Rock Scrub , rainforest, 350 m, 28.12200 ° S, 152.65800 ° E, Dec. 2, 2000, to May 13, 2001 (G. Monteith, QM S57470, PBI _OON 22089), 1 ³ ; Boombana National Park , site 1, rainforest, 27.40133 ° S, 152.78700 ° E, Jan. 2–30, 2004 (Queensland Museum Party, QM S54583 , PBI _OON 22189), 1 ♀ ; Bowling Green Bay National Park, Alligator Creek section, rainforest, leaf litter, 19.44055 ° S, 146.94722 ° E, May 5, 2009 (K. Edward and P. Cullen, QM S95997 , PBI _ OON 5548 ), 1 ³ ; Buhot Creek, Burbank , riparian forest, 27.58783 ° S, 153.16980 ° E, Apr. 17–May 27, 2003 (C. Burwell, S. Wright, E. Volschenk, QM S62536 , PBI _OON 22417), 1 ³ ; Buhot Creek, Burbank , riparian forest, 27.58783 ° S, 153.16980 ° E, June 30–July 28, 2003 (S. Wright, E. Volschenk, QM S62854 , PBI _OON 22419), 2 ♀ ; Buhot Creek, Burbank , riparian forest, 27.58783 ° S, 153.16980 ° E, July 28–Sept. 2, 2003 (Queensland Museum Party, QM S62552, PBI _OON 22425), 2 ♀ ; Buhot Creek, Burbank , riparian forest, 27.58783 ° S, 153.16980 ° E, May 27–June 30, 2003 (S. Wright, E. Volschenk, QM S62925, PBI _OON 25925), 1 ♀ ; Buhot Creek, Burbank , riparian forest, 27.58783 ° S, 153.16980 ° E, Mar. 1–31, 2004 (Queensland Museum Party, QM S79866 , PBI _OON 26261), 1 ³, 1 ♀ ; Buhot Creek, Burbank , riparian forest, 27.58783 ° S, 153.16980 ° E, Jan. 30– Mar. 1, 2004 (Queensland Museum Party, QM S65765 , PBI _OON 26290), 1 ♀ ; Bulburin Forestry Nursery NW of Bundaberg, rainforest, leaf litter under rocks, 24.51666 ° S, 151.48333 ° E, Mar. 1, 1975 (M. Gray, C. Horseman, AM KS6707 , PBI _OON 26285), 1 ♀ ; Bulburin SF, leaf litter, 500 m, 24.50000 ° S, 151.58330 ° E, Mar. 25–28, 1977 (V. Davies, R. Raven, QM S16102 , PBI _OON 26280), 1 ³, 3 ♀ ; Bulburin SF, 500 m, 24.50000 ° S, 151.58330 ° E, Mar. 25–28, 1977 (V. Davies, R. Raven, QM S16137 , PBI _OON 26283), 1 ³ ; Burleigh Headland National Park , rainforest, 80 m, 28.13333 ° S, 153.45000 ° E, Jan. 1–Mar. 4, 1992 (D.J. Cook, QM S47120, PBI _OON 22468), 1 ³ ; Burpengary , rainforest, 27.15000 ° S, 152.95000 ° E, Sept. 27, 1978 (G. Monteit ḩ QM S16123 , PBI _ OON 5920 ), 1 ♀ ; Burpengary , rainforest, 27.15000 ° S, 152.95000 ° E, July 25, 1987 (G. Monteit ḩ QM S12987 , PBI _ OON 5922 ), 2 ♀ ; Enoggera Reservoir (site 3), rainforest, 100 m, 27.45000 ° S, 152.91670 ° E, Mar. 15–18, 2000 (C. Burwell, S. Evans, QM S39614 , PBI _OON 22109), 1 ♀ ; Fig Tree Pocket, Brisbane , open forest, 27.46667 ° S, 153.05000 ° E, June 1, 1983 (V.E. Davies, QM S78321 , PBI _OON 20588), 1 ³, 1 ♀ ; Fig Tree Pocket, Brisbane , open forest, 27.46667 ° S, 153.05000 ° E, Feb. 1, 1983 (V.E. Davies, QM S78315 , PBI _OON 20603), 1 ♀ ; Hinchinbrook Island, Macushla Cove , rainforest, 18.22666 ° S, 146.21777 ° E, May 3, 2009 (K. Edward and P. Cullen, QM S95998 ), 1 ³, 2 ♀ ; Hinchinbrook Island, N. end of north Shepherd Beach , rainforest, leaf litter, 18.20250 ° S, 146.22888 ° E, May 3, 2009 (K. Edward and P. Cullen, QM S95999 , PBI _ OON 5550 ), 1 ³, 1 ♀ ; Hinchinbrook Island, N end of north Shepherd Beach , rainforest, leaf litter, 18.20250 ° S, 146.22888 ° E, May 3, 2009 (K. Edward and P. Cullen, QM S96000 , PBI _OON 26303), 1 ♀ ; Kroombit Tops, 45 km SSW. of Calliope , rainforest, leaf litter, 940 m, 24.41666 ° S, 151.05000 ° E, Dec. 15, 1983 (G. Monteith, V. Davies, J. Gallon, G. Thompson, QM S16015 , PBI _OON 25906), 1 ³ ; Kroombit Tops, 65 km SW. Gladstone , rainforest, leaf litter, 1100 m, 24.41916 ° S, 150.95444 ° E, Feb. 22–26, 1982 (G. Monteith, G. Thompson, QM S16053 , PBI _OON 26282), 1 ♀ ; Kroombit Tops, Beauty Spot 98, rainforest, 1000 m, 24.36666 ° S, 151.01670 ° E, Dec. 9–19, 1983 (V. Davies, J. Gallon, QM S12981 , PBI _OON 25907), 3 ♀ ; Kroombit Tops, Three Moon Creek , rainforest, 1000 m, 24.36666 ° S, 151.01670 ° E, Dec. 9–19, 1983 (V. Davies, J. Gallon, QM S16012 , PBI _OON 25893), 1 ³, 1 ♀ ; 11 km by road, E of Marburg , 27.56666 ° S, 152.71667 ° E (June 26, 1986, M.S. Harvey, P.J. Vaughan, WAM T90 /911, PBI _ OON 00004310 ), 1 ♀ ; Marys Creek, via Gympie , rainforest, 180 m, 26.25000 ° S, 152.58330 ° E, Aug. 11–Nov. 10, 1974 (G. and S. Monteith, QM S16815 , PBI _ OON 5927 ), 2 ♀ ; Mount Aberdeen, summit saddle, rainforest, 800 m, 20.20000 ° S, 147.88330 ° E, Dec. 5, 1996, to Apr. 8, 1997 (G. Monteith, D. Cook, QM S40697, PBI _OON 21713), 3 ♀ ; Mount Coot-tha, Brisbane , 27.48334 ° S, 152.95000 ° E, Dec. 1–22, 1979 (R.J. Raven, QM S16202 , PBI _OON 25942), 2 ♀ ; Mount Cotton, Scott’s Dam , rainforest, 200 m, 27.60967 ° S, 153.20350 ° E, Dec. 12, 1997, to May 7, 1998 (G. Monteith, QM S56979 , PBI _OON 22049), 1 ³ ; Mount Cotton , upper gully, rainforest, 150 m, 27.60967 ° S, 153.20530 ° E, Dec. 12, 1997, to May 7, 1998 (G. Monteith, QM S60084 , PBI _OON 22128), 1 ♀ ; Mount Superbus Summit , 1300 m, 28.23333 ° S, 152.46670 ° E, Feb. 8–Mar. 12, 1990 (G. Monteith, G. Thompson, H. Janetzki, QM S41562 , PBI _ OON 21721), 1 ³ ; Mount Walsh , 1 km N., vinescrub, 320 m, 25.56666 ° S, 152.05000 ° E, June 26–Oct. 9, 1999 (D.J. Cook, QM S72907, PBI _OON 22055), 1 ♀ ; Proserpine, Airport Drive (site XY12), closed forest, 32 m, 20.48777 ° S, 148.56500 ° E, Feb. 16–May 10, 2007 (R. Raven, QM S85145 , PBI _OON 23143), 1 ♀ ; Proserpine, Deadman Creek (site XY17), open forest, 21 m, 20.50500 ° S, 148.55583 ° E, May 10–Aug. 15, 2007 (R. Raven, QM S79993 , PBI _OON 23109), 1 ³ ; Proserpine, Thompson Creek (site XY14), closed forest, 44 m, 20.51083 ° S, 148.56500 ° E, Feb. 16–May 10, 2007 (R. Raven, QM S85065 , PBI _OON 23194), 2 ♀ ; Proserpine, Thompson Creek (site XY14), closed forest, 44 m, 20.51083 ° S, 148.56500 ° E, Nov. 5, 2007, to Feb. 13, 2008 (R. Raven, QM S85647 , PBI _OON 25900), 2 ♀ ; Proserpine, Thompson Creek (site XY15), closed forest, 21 m, 20.51888 ° S, 148.55694 ° E, Feb. 13–Mar. 12, 2008 (R. Raven, QM S85443 , PBI _OON 23112), 1 ³ ; Proserpine, Thompson Creek (siteXY18a), closed forest, 30 m, 20.51500 ° S, 148.55888 ° E, Feb. 14–Mar. 12, 2008 (R. Raven, QM S85434 , PBI _OON 23129), 1 ♀ ; Proserpine, track north Airport Drive (site XY11), closed forest, 32 m, 20.48694 ° S, 148.53583 ° E, Feb. 13–Mar. 12, 2008 (R.J. Raven, QM S85299 , PBI _OON 23139), 1 ³ ; Proserpine, track north Airport Drive (site XY11), closed forest, 32 m, 20.48694 ° S, 148.53583 ° E, Feb. 10– 16, 2007 (R. Raven, QM S85476, PBI _OON 23171), 1 ³ ; Proserpine, track north Airport Drive (site XY11), closed forest, 32 m, 20.48694 ° S, 148.53583 ° E, Nov. 5, 2007, to Feb. 13, 2008 (R. Raven, QM S85612 , PBI _OON 25901), 1 ³ ; Proserpine , WSC track (site XY13), closed forest, 37 m, 20.48694 ° S, 148.57194 ° E, May 10–Aug. 15, 2007 (R. Raven, QM S79983, PBI _OON 23069), 2 ♀ ; Proserpine , WSC track (site XY13), closed forest, 37 m, 20.48694 ° S, 148.57194 ° E, Feb. 11–16, 2007 (R. Raven, QM S85371 , PBI _OON 23126), 1 ³, 1 ♀ ; Sankey’s Scrub , rainforest, 60 m, 27.51683 ° S, 153.08430 ° E, Dec. 12, 1997, to May 07, 1998 (G. Monteith, QM S60206 , PBI _OON 22072), 1 ♀ ; Split Yard Creek , semievergreen vine thicket, 150 m, 27.37350 ° S, 152.62600 ° E, Dec. 27, 1998, to Jan. 13, 1999 (G. Monteith, D. Cook, G. Thompson, QM S69618 , PBI _OON 21984), 1 ♀ ; Upper Brookfield , rainforest, leaf litter, 100 m, 27.50000 ° S, 152.91670 ° E, Jan. 12, 1982 (R.J. Raven, QM S16000 , PBI _ OON 26250), 1 ♀ ; Upper Brookfield , rainforest, leaf litter, 100 m, 27.50000 ° S, 152.91670 ° E, Aug. 14–Sept. 1, 1981 (V. Davies, R. Raven, QM S16491 , PBI _OON 26251), 1 ♀ ; Upper Brookfield , vine forest, leaf litter, 100 m, 27.50000 ° S, 152.91670 ° E, Apr. 8–23, 1981 (V. Davies, R. Raven, QM S16697 , PBI _OON 26252), 1 ³, 2 ♀ .

DISTRIBUTION: This species is relatively widespread from the border of Queensland and New South Wales, to Bellenden Ker Range in the Wet Tropics (map 11).

Figures

Fig. 64. Ischnothyreus raveni, sp. nov. Holotype male (PBI_OON 00005641): A. habitus, dorsal view; B. habitus, ventral view; C. habitus, lateral view; G. carapace, anterior view; H. sternum, ventral view. Allotype female (PBI_OON 00005642): D. habitus, dorsal view; E. habitus, ventral view; F. habitus, lateral view; I. epigynum, ventral view.

Fig. 65. Ischnothyreus raveni, sp. nov. Holotype male (PBI_OON 00005641): A. left palp, prolateral view; B. left palp, retrolateral view; C. left chelicerae, anterior view; D. left chelicerae, posterior view; E. left palp, dorsal view. Allotype female (PBI_OON 00005642): F. epigynum, ventral view. Scale lines 5 0.1 mm.