Aname lambkinae sp. nov.

urn:lsid:zoobank.org:act: 72155011-C47E-459F-B00F-0FEA858C564E

Figs 1, 8, 53–54

Diagnosis

Males of A. lambkinae sp. nov. can be distinguished from all species for which males are known except A. ammolithica sp. nov. and A. barakula sp. nov. by a moderate to large body size (carapace length>4.0 mm), the presence of a long embolus (embolus length / bulb length>1.5) that is relatively straight, a triangular tibial spur (rather than more digitiform), and a thin metatarsus I (metatarsus I length/ width>3.9) with an unpronounced heel (Fig. 53A–Q). Males of A. lambkinae can be distinguished from those of A. ammolithica and A. barakula by the presence of a wider sternum (sternum length /width ~ 1.3; cf.> 1.4) and a more pronounced heel on metatarsus I (Fig. 53A–Q; cf. Figs 49–50).

Females of A. lambkinae sp. nov. can be distinguished from all species for which females are known except A. barakula sp. nov., A. braemar sp. nov., and A. truncata sp. nov. by the presence of spermathecae with two vesicles, with relatively long and straight lateral vesicles (lateral vesicle length / genitalia width>0.25) and medial vesicles with few bends (usually one or two), and a narrow sternum (sternum length/width>1.3) (Fig. 54A–L). Females of A. lambkinae can be distinguished from those of A. barakula and A. braemar by the presence of spermathecae with lateral vesicles without distinct, widened crowns (Fig. 54L; cf. Fig. 51). Females of A. lambkinae can be distinguished from those of A. truncata by the presence of spermathecae with more elongate lateral vesicles (lateral vesicle length / width ~ 3.6; cf. ~ 1.6 in A. truncata) and strongly bent medial vesicles with distinct crowns (Fig. 54L; cf. Fig. 55).

Etymology

The specific epithet ‘ lambkinae ’ honours Dr Christine Lambkin, for her contributions to Australian entomology and biodiversity science. Christine was involved in collecting several specimens of this species.

Type material

Holotype

AUSTRALIA – Queensland • ♂; Carnarvon National Park, Mount Moffatt Section; 25°01′ S, 147°56′ E; 770 m a.s.l.; 9–26 Sep. 2012; C. Lambkin and G. Keith leg.; gutter trap, eucalypt forest; QMB S24949.

Paratypes

AUSTRALIA – Queensland • 2 ♂♂; Carnarvon National Park, Mount Moffatt Section; 25°01′ S, 147°56′ E; 770 m a.s.l.; 26 Sep.–2 Nov. 2012; Queensland Museum Party, P. Mowatt leg.; monster trap; QMB S52416 • 1 ♂; Carnarvon National Park, Mount Moffatt Section; 25°01′ S, 147°54′ E; 720 m a.s.l.; 16 Jan.–22 Apr. 2013; G. Keith leg.; gutter trap; QMB S52874 .

Other material examined

AUSTRALIA – Queensland • 3 ♂♂, 1 juv.; Carnarvon Station, Swers Lookout; 24°50′ S, 147°46′ E; 870 m a.s.l.; 23 Sep.–1 Nov. 2012; N. Starick, C. Lambkin, S. Wright and J. Wilson leg.; monster trap, sandy gully; QMB S104691 • 1 ♀, 1 juv.; Carnarvon Station, Swers Lookout; 24°50′ S, 147°46′ E; 870 m a.s.l.; 1 Dec. 2012 – 17 Jan. 2013; G.B. Monteith and C. Wilson leg.; gutter trap, Acacia scrub; QMB S118364 • 1 ♂; Carnarvon Station; 24°50′ S, 147°46′ E; 853 m a.s.l.; 8–16 Oct. 2014; B. Baehr leg.; pitfall trap; QMB S99407 • 1 ♀; Kentucky Station, 43.2 km NNE of Injune, adjoining Beilba Road; 25°35′ S, 148°53′ E; 15 Mar. 2021; E. Amsters leg.; excavated, short, ‘y’ shaped burrow on flat of grassy creek bed with dense leaf litter, Eucalyptus, Callitris, Acacia forest, pale brown sandy loam with surface gravel; QMB S118233.

Description

Male (holotype, QMB S24949)

GENERAL (Fig. 53A–Q). Body length 16.89, in good condition, colour presumably faded due to preservation.

DORSAL PROSOMA (Fig. 53A, E–F). Carapace length 6.67, width 5.26, length/width 1.27, clypeus to fovea length/carapace length 0.66, caput width/carapace width 0.64, carapace red-brown, reflective setae present, heavy on caput, heavy on thorax, fovea procurved, fovea width/carapace length 0.12 (Fig. 53A, F); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.46 (Fig. 53A); eye group rectangular, width/length 1.91, eye tubercle present (Fig. 53E).

ABDOMEN (Fig. 53B, D). Abdomen length 7.06, light grey, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA (Fig. 53C, G–I). Labium cuspules absent (Fig. 53H); maxillae heel distinct, cuspules present, count =about 86, extending posteriorly onto heel, extending laterally about 35% of maxillae length (Fig. 53C, I); coxae cuspules absent, thorn-like setae on prolateral face present (Fig. 53C, I); sternum length/width 1.30, central sternum with consistent covering of short setae, row of longer setae around posterior edges (Fig. 53G–H); posterior sigilla circular, central sternum to posterior sigilla length/sternum length 0.28, posterior sigilla length/sternum length 0.09 (Fig. 53G–H); other sigilla small, round and lateral (Fig. 53G–H).

LEG I (Fig. 53N–Q). Leg I red-brown, femur length 5.32, patella length 3.30, tibia length 4.10, metatarsus length 4.02, tarsus length 2.69, total length 19.43, leg I length/carapace length 2.91 (Fig. 53N–O); scopulae on distal metatarsus and tarsus (Fig. 53N–O); spine count Fe D 3, Fe PL 1, Pa PL 2, Ti PL 0, Ti RL 0, Me PL 0, Me RL 0, Ta 0 (Fig. 53N–O); tibia length/width [TIL/TID] 3.57, even width along length, spur present, triangular, knuckle absent, megaspine angled at 29 degrees, length to distal face of spur/tibia length [TIS/TIL] 0.46, spur height/tibia width [TISH/TID] 0.49, megaspine length/tibia length 0.23 (Fig. 53N–P); metatarsus relatively straight, proximal excavation present, excavation concave with slight heel, heel semi-sharp, excavation length/metatarsus length [MIPEL/MIL] 0.41, metatarsus length/ width [MIL/MID] 4.26 (Fig. 53N–O, Q).

PEDIPALP (Fig. 53J–M). Tibia length 2.77, width 0.89, length/width [PTL/PTD] 3.11, asetose depression present, depression length/palp tibia length [PDL/PTL] 0.54, retrolateral face with short, thorn-like setae along retrolateral edge of depression, ventral face with two elongate bristle-like setae below depression, prolateral face with patch of spines on distal half, disto-medial spine present (Fig. 53J–K); patella prolateral face with 2 spines (Fig. 53J–K); cymbium with scopulae present distally (Fig. 53J–K); copulatory organ total length 1.48, length/palp tibia length 0.53 (Fig. 53L–M); bulb length/width 0.93 (Fig. 53L–M); embolus tapering from bulb, attenuate, tapering and curving relatively evenly to point, width at base/bulb width 0.30, embolus length/bulb length 1.97 (Fig. 53L–M).

Female (QMB S118233)

GENERAL (Fig. 54A–L). Body length 25.03, in good condition.

DORSAL PROSOMA (Fig. 54A, E–F). Carapace length 9.42, width 7.80, length/width 1.21, clypeus to fovea length/carapace length 0.71, caput width/carapace width 0.75, carapace red-brown, reflective setae present, moderate on caput, moderate on thorax, fovea procurved, fovea width/carapace length 0.12 (Fig. 54A, F); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.55 (Fig. 54A); eye group rectangular, width/length 2.18, eye tubercle present (Fig. 54E).

ABDOMEN (Fig. 54B, D). Abdomen length 10.17, light grey, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA (Fig. 54C, G–I). Labium cuspules absent (Fig. 54H); maxillae heel distinct, cuspules present, count =about 140, extending posteriorly onto heel, extending laterally about 30% of maxillae length (Fig. 54C, I); coxae cuspules absent, thorn-like setae on prolateral face present (Fig. 54C, I); sternum length/width 1.44, central sternum with consistent covering of short setae, row of longer setae around posterior edges (Fig. 54G–H); posterior sigilla ovoid, central sternum to posterior sigilla length/ sternum length 0.24, posterior sigilla length/sternum length 0.10 (Fig. 54G–H); other sigilla small, round and lateral (Fig. 54G–H).

LEG I (Fig. 54J–K). Leg I red-brown, reflective setae on dorsal femur, femur length 7.38, patella length 4.86, tibia length 5.01, metatarsus length 4.88, tarsus length 2.98, total length 25.11, leg I length/carapace length 2.67; scopulae on distal metatarsus and tarsus; spine count Fe D 1, Fe PL 1, Pa PL 2, Ti PL 3, Ti RL 4, Me PL 2, Me RL 2, Ta 0; tibia length/width [TIL/TID] 3.54.

GENITALIA (Fig. 54D, L). Epigastric furrow extending slightly, posterior edge with rounded shape (Fig. 54D); spermathecae with two vesicles each (Fig. 54L); lateral vesicle relatively straight, length 0.58, lateral vesicle length/genitalia width 0.27, length/width at base 3.61, crown un-demarcated (Fig. 54L); medial vesicle short, projecting medially and curving from medial to lateral angle, medial vesicle length/genitalia width 0.20, length/width 2.58, medial vesicle length/lateral vesicle length 0.73 (Fig. 54L).

Distribution and natural history

Aname lambkinae sp. nov. occurs in central Queensland, in the Brigalow Belt South bioregion, extending from the Mount Moffatt and Upper Warrego regions of Carnarvon National Park and Carnarvon Station Reserve in the west, to near the Beilba region in the east (Fig. 8). The form of burrows constructed by spiders of this species is unknown, but is likely to be similar to that of other barakula -complex species (Fig. 8).