Aname barrema Raven, 1985

Aname barrema Raven, 1985 View in CoL

Figs 1 View Fig , 10 View Fig , 64–65 View Fig View Fig

Aname barrema Raven, 1985: 382 View in CoL , figs 5, 26, 40, 47.

non Aname barrema View in CoL – Raven 1985 (pars): figs 13, 33, 70–74 (illustrated female allotype QMB S1239 [Braemar State Forest], and female paratypes QMB S1243 [Girraween National Park], QMB S1244 [Moombah], QMB S1247 [Yuleba], and QMB S1245 [Stanthorpe], here identified as A. platensis sp. nov. [QMB S1243], and A. eddieorum sp. nov. [all others]).

Diagnosis

Males of A. barrema can be distinguished from all species for which males are known except A. inimica and A. magnifica sp. nov. by a moderate to large body size (carapace length>4.0 mm), the presence of a copulatory organ with the bulb tapering into a long embolus (embolus length/ bulb length>1.5) with a slightly thicker basal section that narrows and curves sharply at about 0.6 of length, a patch of thicker setae proximally of asetose depression, and the absence of a pronounced, sharp heel on metatarsus I (as in pallida -complex species) ( Fig. 64A–Q View Fig ). Males of A. barrema can be distinguished from those of A. inimica by the presence of a longer embolus (embolus length / bulb length>1.5; cf. ~ 1.2) ( Fig. 64L– M View Fig ; cf. Fig. 67 View Fig ). Males of A. barrema can be distinguished from those of A. magnifica by the presence of a longer asetose depression on the palp tibia (depression length / tibia length ~0.7; cf. ~ 0.6 in A. magnifica ) and a thinner metatarsus I (metatarsus I length / width ~ 4.5; cf. ~ 3.5 in A. magnifica ) ( Fig. 64K, Q View Fig ; cf. Fig. 69 View Fig ).

Females of A. barrema can be distinguished from all species for which females are known except A. distincta and A. magnifica sp. nov. by the presence of spermathecae with two vesicles, with relatively long and straight lateral vesicles (lateral vesicle length / genitalia width>0.25) that don’t curve medially at their ends, and very short, straight medial vesicles (medial vesicle length / lateral vesicle length <0.5) ( Fig. 65D, L View Fig ). Females of A. barrema can be distinguished from those of A. magnifica by the presence of smaller posterior sigilla on the sternum (posterior sigilla length/ sternum length ~ 0.14; cf. ~ 0.18) and spermathecae with less triangular, more tubular lateral vesicles ( Fig. 65G–H, L View Fig ; cf. Fig. 70 View Fig ). Females of A. barrema can be distinguished from those of A. distincta by the presence of spermathecae with less elongate lateral vesicles (lateral vesicle length/ width ~ 1.84; cf. ~ 1.95 in A. distincta ), with slightly widened crowns ( Fig. 65L View Fig ; cf. Fig. 66 View Fig ).

Type material

Holotype

AUSTRALIA – Queensland • ♂; Braemar State Forest ; 27°13′ S, 150°50′ E; 15 Oct. 1997 – 19 Oct. 1979; R.J. Raven leg.; QMB S1238 View Materials .

GoogleMaps

Other material examined

AUSTRALIA – Queensland • 1 ♂; Gurgeena Plateau ; 25°27′ S, 151°22′ E; 22 Aug.–10 Oct. 1998; G.B. Monteith leg.; pitfall trap, open forest; QMB S63025 GoogleMaps • 1 ♀; Binjour, Swains Road ; 25°32′ S, 151°30′ E; 373 m a.s.l.; 24 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, in leaf litter, wet sclerophyll forest; QMB S118308 View Materials GoogleMaps • 1 ♂; Maryborough ; 25°33′ S, 152°41′ E; QMB S26091 GoogleMaps • 1 ♂; St Mary State Forest ; 25°44′ S, 152°31′ E; R. Zellow leg.; QMB S26093 GoogleMaps • 2 ♂♂; Miles , E of Waituna; 26°39′ S, 149°51′ E; 361 m a.s.l.; 26 Jun.–5 Sep. 2006; R.J. Raven, B. Baehr and A. Amey leg.; QMB S76033 GoogleMaps • 1 ♂; Geham , N of Toowoomba; 27°20′ S, 151°58′ E; 4 Apr. 2004; R. Neilson leg.; open eucalypt woodland; QMB S61956 GoogleMaps • 1 ♂; Kingsthorpe ; 27°30′ S, 151°46′ E; 15 Sep. 2001; T. Harding leg.; QMB S57055 GoogleMaps . – New South Wales • 1 ♂; Northstar , “Edington”; 28°56′ S, 150°23′ E; 23 Sep. 1997; S. Hardcastle leg.; hand collected, found in house after rain; QMB S35483 GoogleMaps • 1 ♂; Northstar ; 28°56′ S, 150°23′ E; 14 Oct. 1997; S. Hardcastle leg.; QMB S35507 GoogleMaps • 1 ♂; Northstar , “Edington”; 28°56′ S, 150°23′ E; 20 Aug. 2007; S. Hardcastle leg.; hand collected, found inside house during wet weather; QMB S79681 GoogleMaps .

Description

Male (holotype, QMB S1238)

GENERAL ( Fig. 64A–Q View Fig ). Body length 16.43, in moderate condition, colour faded significantly due to preservation.

DORSAL PROSOMA ( Fig. 64A, E–F View Fig ). Carapace length 7.01, width 6.02, length/width 1.16, clypeus to fovea length/carapace length 0.75, caput width/carapace width 0.66, carapace orange, caput slightly darker than thorax, reflective setae present, light on caput, light on thorax, fovea procurved, fovea width/ carapace length 0.14 ( Fig. 64A, F View Fig ); chelicerae orange, rastellum absent or inconspicuous, chelicerae length/carapace length 0.42 ( Fig. 64A View Fig ); eye group rectangular, width/length 2.23, eye tubercle present ( Fig. 64E View Fig ).

ABDOMEN ( Fig. 64B, D View Fig ). Abdomen length 6.33, yellow-brown, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA ( Fig. 64C, G–I View Fig ). Labium cuspules absent ( Fig. 64H View Fig ); maxillae heel distinct, cuspules present, count =about 160, extending posteriorly onto heel, extending laterally about 40% of maxillae length ( Fig. 64C, I View Fig ); coxae cuspules absent, thorn-like setae on prolateral face present ( Fig. 64C, I View Fig ); sternum length/width 1.15, some setae rubbed off, central sternum with consistent covering of short setae, row of longer setae around posterior edges ( Fig. 64G–H View Fig ); posterior sigilla ovoid, central sternum to posterior sigilla length/sternum length 0.27, posterior sigilla length/sternum length 0.16 ( Fig. 64G– H View Fig ); other sigilla small, round and lateral ( Fig. 64G–H View Fig ).

LEG I ( Fig. 64N–Q View Fig ). Leg I yellow, darker on femur, femur length 6.24, patella length 3.83, tibia length 4.45, metatarsus length 4.29, tarsus length 2.59, total length 21.40, leg I length/carapace length 3.05 ( Fig. 64N–O View Fig ); scopulae on distal metatarsus and tarsus ( Fig. 64N–O View Fig ); spine count Fe D 2, Fe PL 1, Pa PL 2, Ti PL 0, Ti RL 0, Me PL 0, Me RL 0, Ta 0 ( Fig. 64N–O View Fig ); tibia length/width [TIL/TID] 3.56, even width along length, spur present, intermediate triangular/digitiform, knuckle absent, megaspine angled at 25 degrees, length to distal face of spur/tibia length [TIS/TIL] 0.47, spur height/tibia width [TISH/ TID] 0.65, megaspine length/tibia length 0.24 ( Fig. 64N–P View Fig ); metatarsus relatively straight, proximal excavation present, excavation concave with slight heel, heel rounded, excavation length/metatarsus length [MIPEL/MIL] 0.47, metatarsus length/width [MIL/MID] 4.50 ( Fig. 64N–O, Q View Fig ).

PEDIPALP ( Fig. 64J–M View Fig ). Tibia length 2.92, width 1.11, length/width [PTL/PTD] 2.62, asetose depression present, depression length/palp tibia length [PDL/PTL] 0.72, retrolateral face with patch of long setae proximally of asetose depression, ventral face with two elongate bristle-like setae below depression, prolateral face with patch of spines on distal half, disto-medial spine absent ( Fig. 64J–K View Fig ); patella prolateral face with 2 (proximal rubbed off) spines ( Fig. 64J–K View Fig ); cymbium with scopulae present distally ( Fig. 64J–K View Fig ); copulatory organ total length 1.74, length/palp tibia length 0.59 ( Fig. 64L–M View Fig ); bulb length/width 0.93 ( Fig. 64L–M View Fig ); embolus tapering from bulb, attenuate, swollen base tapering before strong curve to sinuous tip, one strong bend, at about 0.6 of length, width at base/bulb width 0.37, embolus length/bulb length 1.91 ( Fig. 64L–M View Fig ).

Female (QMB S118308)

GENERAL ( Fig. 65A–L View Fig ). Body length 22.54, in good condition.

DORSAL PROSOMA ( Fig. 65A, E–F View Fig ). Carapace length 8.89, width 7.04, length/width 1.26, clypeus to fovea length/carapace length 0.74, caput width/carapace width 0.79, carapace red-brown, reflective setae present, moderate on caput, moderate on thorax, fovea procurved, fovea width/carapace length 0.17 ( Fig. 65A, F View Fig ); chelicerae dark golden-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.52 ( Fig. 65A View Fig ); eye group rectangular, width/length 2.08, eye tubercle present ( Fig. 65E View Fig ).

ABDOMEN ( Fig. 65B, D View Fig ). Abdomen length 8.99, grey-brown, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA ( Fig. 65C, G–I View Fig ). Labium cuspules absent ( Fig. 65H View Fig ); maxillae heel distinct, cuspules present, count =about 135, extending posteriorly onto heel, extending laterally about 30% of maxillae length ( Fig. 65C, I View Fig ); coxae cuspules absent, thorn-like setae on prolateral face present ( Fig. 65C, I View Fig ); sternum length/width 1.14, central sternum with consistent covering of short setae, row of longer setae around posterior edges ( Fig. 65G–H View Fig ); posterior sigilla ovoid, central sternum to posterior sigilla length/ sternum length 0.24, posterior sigilla length/sternum length 0.14 ( Fig. 65G–H View Fig ); other sigilla small, round and lateral ( Fig. 65G–H View Fig ).

LEG I ( Fig. 65J–K View Fig ). Leg I coffee-brown, reflective setae on dorsal femur, femur length 6.60, patella length 4.28, tibia length 4.49, metatarsus length 3.77, tarsus length 2.37, total length 21.52, leg I length/ carapace length 2.42; scopulae on distal metatarsus and tarsus; spine count Fe D 1, Fe PL 1, Pa PL 2, Ti PL 1, Ti RL 4 (weak), Me PL 2, Me RL 3, Ta 0; tibia length/width [TIL/TID] 3.34.

GENITALIA ( Fig. 65D, L View Fig ). Epigastric furrow unmodified ( Fig. 65D View Fig ); spermathecae with two vesicles each ( Fig. 65L View Fig ); lateral vesicle relatively straight, length 0.72, lateral vesicle length/genitalia width 0.52, length/width at base 1.84, crown slightly wider than stem ( Fig. 65L View Fig ); medial vesicle short, relatively straight and projecting ventrally, medial vesicle length/genitalia width 0.16, length/width 2.12, medial vesicle length/lateral vesicle length 0.31 ( Fig. 65L View Fig ).

Distribution and natural history

Aname barrema has a wide distribution in northern New South Wales and south-eastern Queensland, predominantly in the Brigalow Belt South bioregion. It extends from Northstar in northern New South Wales north to Eidsvold in Queensland, and from Miles east to Maryborough ( Fig. 10 View Fig ). It constructs an open, silk-lined burrow without silk outside of the entrance, on an angle, and with a hidden secondary ‘wishbone’ entrance ( Fig. 10 View Fig ).

Remarks

Specimens from near the town of Maryborough occur in a different bioregion to other specimens (and the type locality) of the species, and are smaller on average than those from further west. Future molecular work should seek to test whether these specimens are actually conspecific.