Aname occivillosa, Wilson & Harvey & Simmons & Rix, 2025

Aname occivillosa sp. nov.

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

Figs 1 View Fig , 11 View Fig , 74–75 View Fig View Fig

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 View Fig ). 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 View Fig ; cf. Figs 71 View Fig , 76 View Fig , 81 View Fig ). 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 View Fig ; cf. Fig. 78 View Fig ).

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 View Fig ). 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 View Fig ; cf. Fig. 73 View Fig ). 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 View Fig ; cf. Fig. 79–80 View Fig View Fig ).

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 .

GoogleMaps

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 View Materials • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps .

GoogleMaps

Other material examined

AUSTRALIA – Queensland • 1 ♂; Duaringa ; 23°43′ S, 149°40′ E; 15 Nov. 1967; L. Strachen leg.; QMB S96484 GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps • 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 View Materials GoogleMaps .

Description

Male (holotype, QMB S96935)

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

DORSAL PROSOMA ( Fig. 74A, E–F View Fig ). 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 View Fig ); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.47 ( Fig. 74A View Fig ); eye group rectangular, width/length 1.96, eye tubercle present ( Fig. 74E View Fig ).

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

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

LEG I ( Fig. 74N–Q View Fig ). 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 View Fig ); scopulae on distal metatarsus and tarsus ( Fig. 74N–O View Fig ); 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 View Fig ); 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 View Fig ); 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 View Fig ).

PEDIPALP ( Fig. 74J–M View Fig ). 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 View Fig ); patella prolateral face with 3 (proximal rubbed off) spines ( Fig. 74J–K View Fig ); cymbium with scopulae present distally ( Fig. 74J–K View Fig ); copulatory organ total length 2.01, length/palp tibia length 0.54 ( Fig. 74L–M View Fig ); bulb length/width 0.84 ( Fig. 74L–M View Fig ); 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 View Fig ).

Female (QMB S118269)

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

DORSAL PROSOMA ( Fig. 75A, E–F View Fig ). 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 View Fig ); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.55 ( Fig. 75A View Fig ); eye group rectangular, width/length 2.05, eye tubercle present ( Fig. 75E View Fig ).

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

VENTRAL PROSOMA ( Fig. 75C, G–I View Fig ). Labium cuspules absent ( Fig. 75H View Fig ); maxillae heel distinct, cuspules present, count =about 175, extending posteriorly onto heel, extending laterally about 40% of maxillae length ( Fig. 75C, I View Fig ); coxae cuspules absent, thorn-like setae on prolateral face present ( Fig. 75C, I View Fig ); 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 View Fig ); posterior sigilla elongate, central sternum to posterior sigilla length/sternum length 0.22, posterior sigilla length/sternum length 0.23 ( Fig. 75G–H View Fig ); other sigilla small and lateral, medial sigilla semi-elongate, anterior sigilla round ( Fig. 75G–H View Fig ).

LEG I ( Fig. 75J–K View Fig ). 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 View Fig ). Epigastric furrow unmodified ( Fig. 75D View Fig ); spermathecae with two vesicles each ( Fig. 75L View Fig ); 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 View Fig ); 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 View Fig ).

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 View Fig ). 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 View Fig ).