Aname occivillosa sp. nov.

urn:lsid:zoobank.org:act: DC68DCB6-46C0-4751-A344-88BE6F7EAEEC

Figs 1, 11, 74–75

Diagnosis

Males of A. occivillosa sp. nov. can be distinguished from all species for which males are known except A. bifaceta sp. nov., A. scutitheca sp. nov., A. villosa, and A. warialda by a moderate to large body size (carapace length> 4 mm), the presence of a long embolus (embolus length / bulb length>1.5) that is relatively straight, a short tibial megaspine (megaspine length / tibia length <0.2), and three or more spines on the prolateral patellae of the pedipalp and leg I (Fig. 74A–Q). Males of A. occivillosa can be distinguished from those of A. bifaceta, A. scutitheca, and A. warialda by the presence of a shorter embolus (embolus length / bulb length <2) and a shorter asetose depression on the pedipalp tibia (depression length / pedipalp tibia length <0.6) (Fig. 74J–M; cf. Figs 71, 76, 81). Males of A. occivillosa can be distinguished from those of A. villosa by the presence of a sharper heel on metatarsus I and a more curved embolus (Fig. 74L, Q; cf. Fig. 78).

Females of A. occivillosa sp. nov. can be distinguished from all species for which females are known except A. boreovillosa sp. nov. and A. villosa by the presence of spermathecae with two vesicles, with relatively long, undulating lateral vesicle (lateral vesicle length/ genitalia width>0.25) and tightly undulating medial vesicles (Fig. 75L). Females of A. occivillosa can be distinguished from those of A. boreovillosa by the presence of spermathecae with longer lateral vesicles with narrower or lessrounded crowns (lateral vesicle length / width>2.9) (Fig. 75L; cf. Fig. 73). Females of A. occivillosa can be distinguished from those of A. villosa by the presence of spermathecae with lateral vesicles with wide bases and asymmetrical crowns projecting laterally from the ends (Fig. 75L; cf. Fig. 79–80).

Etymology

The specific epithet ‘ occivillosa ’ combines the Latin adjective ‘ villosa ’, meaning ‘hairy’ or ‘shaggy’ (the species epithet of a closely related and previously described species), with the prefix ‘ occi -’, meaning ‘western’, in reference to this species’ close relatedness to Aname villosa, and its western distribution relative to that species.

Type material

Holotype

AUSTRALIA – Queensland • ♂; Lonesome National Park, near lookout; 25°30′ S, 148°49′ E; 26 Nov.–11 Jan. 2011; D. Beard and B. Sigley leg.; pitfall trap, closed eucalypt woodland on rocky ridge; QMB S96935.

Paratypes

AUSTRALIA – Queensland • 1 ♀; Carnarvon National Park, Carnarvon Gorge trail; 25°03′ S, 148°13′ E; 402 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118269 • 1 ♀; Carnarvon National Park, off Mickey Creek trail; 25°04′ S, 148°15′ E; 418 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118271 • 1 ♀; Carnarvon National Park, off Mickey Creek trail; 25°04′ S, 148°14′ E; 456 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118264 • 1 ♀; Carnarvon National Park, Carnarvon Gorge trail; 25°04′ S, 148°14′ E; 413 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118270 .

Other material examined

AUSTRALIA – Queensland • 1 ♂; Duaringa; 23°43′ S, 149°40′ E; 15 Nov. 1967; L. Strachen leg.; QMB S96484 • 1 ♀; Expedition Range, off Dawson Highway; 24°39′ S, 149°06′ E; 316 m a.s.l.; 15 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118261 • 1 ♂; Brigalow Reserve Station, site 5; 24°48′ S, 149°45′ E; 160 m a.s.l.; 29 Oct.–16 Dec. 2000; D.J. Cook and G.B. Monteith leg.; pitfall trap, vine scrub; QMB S57747 • 1 juv.; Carnarvon National Park, off Mickey Creek trail; 25°04′ S, 148°14′ E; 446 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118265 • 1 juv.; Carnarvon National Park, off Mickey Creek trail; 25°04′ S, 148°14′ E; 459 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118266 • 1 juv.; Carnarvon National Park, near Rock Pool Picnic Area carpark; 25°04′ S, 148°15′ E; 407 m a.s.l.; 16 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118267 • 1 ♀; Gwambegwine, NW on Taroom-Bauhinia Downs Road; 25°20′ S, 149°40′ E; 279 m a.s.l.; 15 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118257 • 1 ♀; Gwambegwine, NW on Taroom-Bauhinia Downs Road; 25°20′ S, 149°40′ E; 258 m a.s.l.; 15 Apr. 2023; J.D. Wilson and M.G. Rix leg.; excavated, open burrow on ground; QMB S118259 .

Description

Male (holotype, QMB S96935)

GENERAL (Fig. 74A–Q). Body length 24.89, in good condition, colour presumably faded due to preservation.

DORSAL PROSOMA (Fig. 74A, E–F). Carapace length 9.63, width 8.42, length/width 1.14, clypeus to fovea length/carapace length 0.70, caput width/carapace width 0.65, carapace red-brown, caput slightly darker than thorax, reflective setae present, heavy on caput, moderate on thorax, fovea procurved, fovea width/carapace length 0.13 (Fig. 74A, F); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.47 (Fig. 74A); eye group rectangular, width/length 1.96, eye tubercle present (Fig. 74E).

ABDOMEN (Fig. 74B, D). Abdomen length 10.08, light grey, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA (Fig. 74C, G–I). Labium cuspules absent (Fig. 74H); maxillae heel distinct, cuspules present, count =about 131, extending posteriorly onto heel, extending laterally about 45% of maxillae length (Fig. 74C, I); coxae cuspules absent, thorn-like setae on prolateral face present (Fig. 74C, I); sternum length/width 1.08, central sternum with consistent covering of short setae, row of longer setae around posterior edges, some shorter thorn-like setae around anterior edges (Fig. 74G–H); posterior sigilla elongate, central sternum to posterior sigilla length/sternum length 0.20, posterior sigilla length/ sternum length 0.18 (Fig. 74G–H); other sigilla small and lateral, medial sigilla semi-elongate, anterior sigilla round (Fig. 74G–H).

LEG I (Fig. 74N–Q). Leg I red-brown, lighter on distal metatarsus and tarsus, femur length 7.66, patella length 4.69, tibia length 5.46, metatarsus length 5.32, tarsus length 3.35, total length 26.49, leg I length/ carapace length 2.75 (Fig. 74N–O); scopulae on distal metatarsus and tarsus (Fig. 74N–O); spine count Fe D 4, Fe PL 1, Pa PL 3, Ti PL 0, Ti RL 0, Me PL 0, Me RL 0, Ta 0 (Fig. 74N–O); tibia length/width [TIL/TID] 3.26, even width along length, spur present, digitiform, knuckle present, megaspine angled at 0 degrees, length to distal face of spur/tibia length [TIS/TIL] 0.52, spur height/tibia width [TISH/TID] 0.58, megaspine length/tibia length 0.16 (Fig. 74N–P); metatarsus slightly sinuous, proximal excavation present, excavation concave with pronounced heel, heel sharp, excavation length/metatarsus length [MIPEL/MIL] 0.47, metatarsus length/width [MIL/MID] 4.14 (Fig. 74N–O, Q).

PEDIPALP (Fig. 74J–M). Tibia length 3.71, width 1.53, length/width [PTL/PTD] 2.42, asetose depression present, depression length/palp tibia length [PDL/PTL] 0.57, retrolateral face with consistent covering of light setae, ventral face with two elongate bristle-like setae below depression, prolateral face with patch of spines on distal half, disto-medial spine absent (Fig. 74J–K); patella prolateral face with 3 (proximal rubbed off) spines (Fig. 74J–K); cymbium with scopulae present distally (Fig. 74J–K); copulatory organ total length 2.01, length/palp tibia length 0.54 (Fig. 74L–M); bulb length/width 0.84 (Fig. 74L–M); embolus demarcated and roughly perpendicular to bulb, attenuate, tapering and curving relatively evenly to point, width at base/bulb width 0.24, embolus length/bulb length 1.97 (Fig. 74L–M).

Female (QMB S118269)

GENERAL (Fig. 75A–L). Body length 29.70, in good condition.

DORSAL PROSOMA (Fig. 75A, E–F). Carapace length 10.69, width 9.90, length/width 1.08, clypeus to fovea length/carapace length 0.73, caput width/carapace width 0.78, carapace dark red-brown, with distinct lighter bands radiating from fovea along sides of caput, reflective setae present, light on caput, light on thorax, fovea procurved, fovea width/carapace length 0.19 (Fig. 75A, F); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.55 (Fig. 75A); eye group rectangular, width/length 2.05, eye tubercle present (Fig. 75E).

ABDOMEN (Fig. 75B, D). Abdomen length 13.11, dark brown, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA (Fig. 75C, G–I). Labium cuspules absent (Fig. 75H); maxillae heel distinct, cuspules present, count =about 175, extending posteriorly onto heel, extending laterally about 40% of maxillae length (Fig. 75C, I); coxae cuspules absent, thorn-like setae on prolateral face present (Fig. 75C, I); sternum length/width 1.01, most setae from right-posterior part of sternum are rubbed off, central sternum with consistent covering of short setae, row of longer setae around posterior edges, setae at higher density around anterior edges (Fig. 75G–H); posterior sigilla elongate, central sternum to posterior sigilla length/sternum length 0.22, posterior sigilla length/sternum length 0.23 (Fig. 75G–H); other sigilla small and lateral, medial sigilla semi-elongate, anterior sigilla round (Fig. 75G–H).

LEG I (Fig. 75J–K). Leg I red-brown, darker on patella and tibia, femur length 8.19, patella length 5.39, tibia length 5.63, metatarsus length 5.29, tarsus length 3.48, total length 27.97, leg I length/carapace length 2.62; scopulae on distal metatarsus and tarsus; spine count Fe D 0, Fe PL 1, Pa PL 2, Ti PL 2 (weak), Ti RL 4 (weak), Me PL 1, Me RL 3, Ta 0; tibia length/width [TIL/TID] 3.20.

GENITALIA (Fig. 75D, L). Epigastric furrow unmodified (Fig. 75D); spermathecae with two vesicles each (Fig. 75L); lateral vesicle undulating, with several distinct bends, length 1.26, lateral vesicle length/ genitalia width 0.60, length/width at base 3.13, crown bending laterally (Fig. 75L); medial vesicle short, undulating, and projecting postero-ventrally, medial vesicle length/genitalia width 0.20, length/width 3.85, medial vesicle length/lateral vesicle length 0.33 (Fig. 75L).

Distribution and natural history

Aname occivillosa sp. nov. has a wide distribution in central Queensland, in the Brigalow Belt South bioregion. Its known range extends from Gwambegwine in the south-east to Carnarvon Gorge in the north-west and near Blackdown Tableland in the north-east (Fig. 11). It constructs an open, silk-lined burrow with silk spilling out from the entrance, sometimes with a built-up mound of soil around the entrance. The burrow has a short, hidden ‘wishbone’ entrance, which, when excavated, is revealed to terminate in a distinctly thick, white sheath of silk (Fig. 11).