Disnyssus helenmirrenae, Raven, 2015

Disnyssus helenmirrenae View in CoL sp. nov.

( Figs 1b View FIGURE 1 , 16a View FIGURE 16 , 37b–d View FIGURE 37 , 38a, b, e, f View FIGURE 38 . Map 18)

Material. Queensland: holotype ♂, Taroom District, Boggomoss (No.19), 25°25'S 150°01'E, pitfall, 11 Nov 1996 – Jan 1997, G. Monteith, D. Cook, QM S34648 View Materials . Paratypes GoogleMaps : Queensland: 1♀, "Stockhaven", 3 km SE, 25°48'S, 151°59'E, rainforest, pitfall, 19 Dec 1998 – 25 Jan 1999, G. Monteith, C. Gough, QM S50046 View Materials ; 1♀, same data but 10 Oct–19 Dec 1998, QM S50068 . Boggomoss via Taroom, 25°26'S, 150°01'E, open forest, pitfall, P. Lawless: 1♂, adjacent to No. 3, ( BS 55 ), 12 Jun–9 Sep 1996, QM S37136 View Materials ; 2♂ 1♀, No. 3, 11 Nov 1996 – 12 Jan 1997, QM S37178 View Materials , QM S37173 View Materials ; 1♂, No. 4 (near), 11 Nov 1996 – 12 Jan 1997, P. Lawless, H. Janetzki, D. Cook, QM S37252 View Materials . 1♀, Braemar SF, 27°13'S, 150°50'E, cypress & brigalow, 4–8 Feb 1980, R. Raven & Qld Museum, QM S39424 View Materials ; 1♂, same data but 15–19 Oct 1979, QM S39423 View Materials ; 1♀, Buhot Ck , Burbank ( BCC1 View Materials ), 27°35'S, 153°10'E, riparian, pitfall, 2–29 Jan 2004, QMP, QM S79650 View Materials ; 1♀, Coalstoun township , 0.5 km E, 25°37'S, 151°53'E, scrub remnant, berlesate, 28 Jan 1999, G. Thompson, QM S50033 View Materials ; 1♀, Corry HS, 2 km SW, Retro–Corry Rd , 22°45'S, 147°59'E, road verge, pitfall, 12 Jan–9 Mar 2006, C.J. Burwell, QM S72656 View Materials ; 1♂, Expedition Ra NP, Amphitheatre yards, 25°13'S, 149°01'E, open forest, pitfall, 27 Sep–19 Dec 1997, G. Monteith, D. Cook, QM S31653 View Materials ; 1♀, Fraser I: Orchid Beach , Stirling Castle Drive , 25°29'S, 153°03'E, pitfall, Feb 2000, R. Raven, P. Lawless, QM S55936 View Materials . Lake Broadwater via Dalby , 27°21'S, 151°06'E: 1♀, 27 Jan 2002, R. Raven, B. Baehr, N. Platnick, QM S55911 View Materials ; 1♂ 1♀, pitfall, 24 Nov 1985 – 3 Jan 1986, QMP & M. Bennie, QM S50480 View Materials ; 1♀, pitfall, 26 Jan–18 Feb 1985, QMP & M. Bennie, QM S50456 View Materials ; 1♂ 1♀, pitfall, 3 Jan–25 Feb 1986, QM S50473 View Materials ; 1♀, pitfall, 18 Feb–25 Mar 1985, QM S50472 View Materials ; 1♀, pitfall, 25 Feb–22 Apr 1986, QMP & M. Bennie, QM S50479 View Materials ; 1♂ 1♀, pitfall, 16 May–23 Nov 1985, QM S50453 View Materials ; 1♀, (Site 2), pitfall, 25 Feb–22 Apr 1986, QMP & M. Bennie, QM S50438 View Materials ; 1♂ 1♀, (Site 2), pitfall, 3 Jan–25 Feb 1986, QMP & M. Bennie, QM S50434 View Materials ; 1♀, (Site 2), 22 Apr–12 Jun 1986, QMP & M. Bennie, QM S50427 View Materials ; 1♂ 1♀, (Site 2), pitfall, 24 Nov 1985 – 3 Jan 1986, QMP & M. Bennie, QM S50436 View Materials ; 1♀, (site 8), pitfall, 3 Jan–25 Feb 1986, QMP & M. Bennie, QM S39421 View Materials ; 1♂, (Site 2), pitfall, 19 Feb–26 Mar 1985, QMP & M. Bennie, QM S50442 View Materials . 1♀, Lords Table plateau, site 1, 22°39'S, 148°01'E, open eucalypt forest, litter, 7 Mar 2006, R. Raven , QM S80333 ; 1♀, Lords Table, SE base, 22°40'S 148°01'E, eucalypt woodland, 9 Jan 2006, R. J. Raven, QM S80168 ; 1♂, Mt Hutton , 8.5 km SW, 26°01'S, 148°16'E, softwood scrub, pitfall, 14 Dec 2001 – 8 Mar 2002, G. Monteith, D. Cook, QM S79636 View Materials . 2♂, Mt Rose via Taroom , 25°25'S, 149°58'E, vine scrub, pitfall, 23 Sep 1997 – 15 Dec 1997, D.J. Cook, QM S44503 View Materials , QM S44366 View Materials ; 1♂ 1♀, Mudlo Gap , bottom, 26°01'S, 152°14'E, rainforest, pitfall, 9 Oct–17 Dec 1998, G. Monteith, C. Gough, QM S50424 View Materials , QM S50100 View Materials ; 1♂, Saddletree Ck , Bunya Mtns , 26°51'S, 151°38'E, rainforest, flight intercept trap, 1 Dec 1991 – 7 Jan 1992, D.J. Cook, QM S56136 View Materials ; Taroom district , Boggomoss , 25°25–28'S, 149°58'– 150°02'E: 1♂, ( BS 24 ), Rock Wallaby Hill, vine thicket, pitfall, 12 Nov 1996 – 12 Jan 1997, P. Lawless, QM S50880 ; 1♂, ( BS 24 ) Mt Rose Stn , vine thicket, pitfall, 17 Jun–10 Sep 1996, P. Lawless, QM S36757 View Materials ; 1♂, (no.13, BS 20 ), pitfall, 11 Nov 1996 – 12 Jan 1997, P. Lawless, QM S37143 View Materials ; 1♂, (No.3), pitfall, 12 Nov 1996 – 12 Jan 1997, G. Monteith, D. Cook, QM S39551 ; allotype ♀, 1♂ 1♀ (No.3), pitfall, 12 Nov 1996 – 12 Jan 1997, G. Monteith, D. Cook, QM S36358 View Materials , QM S43701 View Materials , QM S39542 ; 2♂ 1♀, same data but baited flight trap, QM S36283 View Materials , QM S36316 View Materials ; 2♂, same data but (No 8), pitfall, QM S36302 View Materials ; 1♂, same data but pitfall, 11 Nov 1996 – 12 Jan 1997, P. Lawless, QM S36739 View Materials , QM S36666 View Materials GoogleMaps .

Diagnosis. Differs from D. judidenchae sp. nov. in having finely pustulose cuticle on the carapace, the longer, more slender serrate setae on the fang shield of females, and in having two pairs of spines ventrally on tibiae III; females also have shorter spermathecae and stronger spination on tibiae and metatarsi.

Etymology. The species is named after actress, Dame Helen Mirren.

Description holotype male QM S34648 View Materials

Carapace 2.52 long, 1.96 wide. Abdomen 2.52 long, 1.76 wide. Total length 5.0.

Colour: carapace and abdomen dark brown; femur dark reddish brown with narrow brown basal band and wide subapical brown band, patellae red brown with dark brown distal lateral faces, tibiae–tarsi I and II, metatarsi III and tarsi III and IV orange brown, metatarsi IV red brown; abdomen dark brown with white feathery hairs in anterior band and pair of narrow medial bands, two pallid spots subdistally on abdomen; carapace dark brown with sparse wide band of white feathery hairs marginally.Carapace pear-shaped, steep-sided laterally and posteriorly, wide tear-shaped flat plateau around fovea; white feathery hairs sparse in wide marginal band and onto dorsal abdomen; fovea short, deep; caput low, indistinct striae; cuticle finely pustulose. Legs: IV much thicker and longer than I; all femora with strong postbasal dorsal thickening depth; cluster of thick hairs ventrally on distal metatarsi and tarsi III and IV. Spines: weak on I and II, strong on III and IV. I: fe p1d2 all weak; pa 0; ti 0; me v2.2. II: fe p1d2w; pa 0; ti v1w; me v 2.2w. III: fe p2d3r1; pa 0; ti p2r2v0.2.2; me p2r2v2.2.1. IV: fe p3d3r1; pa 0; ti p2r2v2.2.2; me p3r3v2.2.2. Palp: fe d2; abdomen: from above, dorsal abdominal scute extends forward in U-shaped collar. Palp: paracymbial spine set very close to basal margin; embolus tip spiralled.

Female allotype QM S35638 View Materials

Carapace 2.28 long, 1.72 wide. Abdomen 2.72 long, 2.20 wide. Total length 5.0.

Colour: carapace and chelicerae dark brown; legs, all femora brown, patellae–tarsi I and II brown orange, III and IV red brown; abdomen dorsally brown with small equilateral triangular dorsal scute, shiny brown; ventrally dark brown. Carapace: glabrous save for erect bristles; one on each strial ridge and pair beside anterior lateral fovea; two anteromedially, 6–8 on clypeus; cuticle finely coriaceous; striae shallow grooves. Eyes: lateral eyes clearly larger; both rows recurved. Chelicerae: slightly porrect, with face recurved back to fangs; fang and furrow short, with long slender fang setae; dentition 2 + 2. Sternum without strong intercoxal projection, margins with long curved setae, centrally glabrous, labium subquadrate. Legs: RCH small; trochanters very shallowly notched; feathery hairs on femora and tibiae III, IV, not evident elsewhere. Scopula sparse on tarsi I, II. Cluster of thick black hairs ventrally on metatarsi III, IV. Spines: weak on I, II. I: fe p1d2; pa 0; ti v1.0; me v2.2.0. II: fe d1; pa 0; ti v1.0; me v2.2. III: fe p2d3r1; pa 0; ti p2r2v1.2.2; me p2r2v2.1.3. IV: fe d3r1; pa 0; ti p2r2v1.2.2; me p3r3v2.1.3. Palp: fe d2; pa p1; ti p2 ta p2v1. Palp: claw slender, apically curved, dentate, not obscured; palpal tarsus without dense hair clusters. Spinnerets: 3 large cylindrical gland spigots on PMS and 2 large CGS on PLS. Epigyne: paired procurved crescents, narrow CD across to ental edge of long domed head of spermathecae, ducts distally not extending wider past base of spermathecae.

Distribution and Habitat. Known only from open forests in the Taroom district and xeric areas to the west of the Great Dividing Range as well as Buhot Reserve and Fraser Island east of the Range, south-eastern Queensland.