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

Aname olkola sp. nov.

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Figs 14 View Fig , 116–117 View Fig View Fig

Diagnosis

Males of A. olkola sp. nov. can be distinguished from all species for which males are known by a moderate to large body size (carapace length>4.0 mm), the presence of a copulatory organ with a highly rounded bulb and a short embolus (embolus length / bulb length <1.5) that is strongly curved, and a digitiform tibial spur ( Fig. 116L–Q View Fig ).

Females of A. olkola sp. nov. can be distinguished from all species for which females are known by the presence of spermathecae with two vesicles, with relatively wide, bulbous lateral spermathecae (lateral vesicle length / width ~ 1.7), widening towards rounded ends, and short, straight medial vesicles projecting from a position posterior to, and separated from, lateral vesicles ( Fig. 117 View Fig ).

Etymology

The specific epithet ‘ olkola ’ is a noun in apposition, referencing Olkola National Park, where the specimens were collected.

Type material

Holotype

AUSTRALIA – Queensland • ♂; Olkola, Valley of Kimba Plateau ; 15°15′ S, 143°38′ E; 129 m a.s.l.; Jul. 2015; R.C. Santana leg.; pitfall trap, moist gully; QMB S22650 .

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Paratype

AUSTRALIA – Queensland • 9 ♂♂, 1 ♀, 1 juv.; Killarney HS, campsite and airstrip; 15°25′ S, 143°30′ E; 165 m a.s.l.; 13–24 Jul. 2015; R.J. Raven, R.C. Santana and L. Carr leg.; open eucalypt forest; QMB S22010 .

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Description

Male (holotype, QMB S22650)

GENERAL ( Fig. 116A–Q View Fig ). Body length 17.09, in good condition, colour presumably faded due to preservation.

DORSAL PROSOMA ( Fig. 116A, E–F View Fig ). Carapace length 6.81, width 5.67, length/width 1.20, clypeus to fovea length/carapace length 0.71, caput width/carapace width 0.71, carapace dark red-brown, caput slightly darker than thorax, reflective setae present, heavy on caput, moderate on thorax, fovea procurved, fovea width/carapace length 0.19 ( Fig. 116A, F View Fig ); chelicerae dark red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.41 ( Fig. 116A View Fig ); eye group rectangular, width/length 2.42, eye tubercle present ( Fig. 116E View Fig ).

ABDOMEN ( Fig. 116B, D View Fig ). Abdomen length 7.46, brown, dorsal pattern absent, with some evidence of reflective setae, and consistent cover of short setae.

VENTRAL PROSOMA ( Fig. 116C, G–I View Fig ). Labium cuspules absent ( Fig. 116H View Fig ); maxillae heel distinct, cuspules present, count =about 164, extending posteriorly onto heel, extending laterally about 50% of maxillae length ( Fig. 116C, I View Fig ); coxae cuspules absent, thorn-like setae on prolateral face present ( Fig. 116C, I View Fig ); sternum length/width 1.27, central sternum with consistent covering of moderate setae, row of longer setae around posterior edges, some shorter bristle-like setae around anterior edges ( Fig. 116G–H View Fig ); posterior sigilla semi-elongate, central sternum to posterior sigilla length/sternum length 0.24, posterior sigilla length/sternum length 0.14 ( Fig. 116G–H View Fig ); other sigilla small, round and lateral ( Fig. 116G–H View Fig ).

LEG I ( Fig. 116N–Q View Fig ). Leg I red-brown, lighter on distal metatarsus and tarsus, reflective setae on dorsal femur, femur length 5.32, patella length 3.63, tibia length 3.81, metatarsus length 3.86, tarsus length 2.33, total length 18.95, leg I length/carapace length 2.78 ( Fig. 116N–O View Fig ); scopulae on distal metatarsus and tarsus ( Fig. 116N–O View Fig ); spine count Fe D 2, Fe PL 1, Pa PL 2 (distal rubbed off), Ti PL 0, Ti RL 0, Me PL 0, Me RL 0, Ta 0 ( Fig. 116N–O View Fig ); tibia length/width [TIL/TID] 3.25, even width along length, spur present, digitiform, knuckle present, megaspine angled at 35 degrees, length to distal face of spur/ tibia length [TIS/TIL] 0.61, spur height/tibia width [TISH/TID] 0.70, megaspine length/tibia length 0.23 ( Fig. 116N–P View Fig ); metatarsus relatively straight, proximal excavation present, excavation concave with slight heel, heel semi-sharp, excavation length/metatarsus length [MIPEL/MIL] 0.47, metatarsus length/ width [MIL/MID] 3.83 ( Fig. 116N–O, Q View Fig ).

PEDIPALP ( Fig. 116J–M View Fig ). Tibia length 2.55, width 1.14, length/width [PTL/PTD] 2.24, asetose depression present, depression length/palp tibia length [PDL/PTL] 0.58, retrolateral face with patch of long setae proximally of asetose depression, ventral face with two elongate spine-like setae below depression, prolateral face with two disto-ventral spines, disto-medial spine present ( Fig. 116J–K View Fig ); patella prolateral face with 2 spines ( Fig. 116J–K View Fig ); cymbium with scopulae present distally ( Fig. 116J–K View Fig ); copulatory organ total length 1.21, length/palp tibia length 0.47 ( Fig. 116L–M View Fig ); bulb length/width 1.06 ( Fig. 116L– M View Fig ); embolus slightly reflexed, attenuate, tapering and curving relatively evenly to point, one strong bend, at about 0.2 of length, slight bend before tip, width at base/bulb width 0.20, embolus length/bulb length 0.92 ( Fig. 116L–M View Fig ).

Female (paratype, QMB S22010)

GENERAL ( Fig. 117A–L View Fig ). Body in moderate condition except for abdomen, which is completely destroyed.

DORSAL PROSOMA ( Fig. 117A, E–F View Fig ). Carapace length 7.43, width 6.26, length/width 1.19, clypeus to fovea length/carapace length 0.72, caput width/carapace width 0.81, carapace orange-brown, caput slightly darker than thorax, reflective setae present, moderate on caput, light on thorax, fovea procurved, fovea width/carapace length 0.21 ( Fig. 117A, F View Fig ); chelicerae red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.63 ( Fig. 117A View Fig ); eye group rectangular, width/length 2, eye tubercle present ( Fig. 117E View Fig ).

VENTRAL PROSOMA ( Fig. 117C, H View Fig ). Labium cuspules absent ( Fig. 117H View Fig ); maxillae heel distinct, cuspules present, count =about 216, extending posteriorly onto heel, extending laterally about 55% of maxillae length ( Fig. 117C View Fig ); coxae cuspules absent, thorn-like setae on prolateral face present ( Fig. 117C View Fig ); sternum length/width 1.24, central sternum with consistent covering of moderate setae, row of longer setae around posterior edges, some shorter bristle-like setae around anterior edges ( Fig. 117H View Fig ); posterior sigilla semi-elongate, central sternum to posterior sigilla length/sternum length 0.24, posterior sigilla length/sternum length 0.15 ( Fig. 117H View Fig ); other sigilla small, round and lateral ( Fig. 117H View Fig ).

LEG I ( Fig. 117J–K View Fig ). Leg I red-brown, darker on femur, reflective setae on dorsal femur, femur length 5.57, patella length 3.84, tibia length 3.73, metatarsus length 3.36, tarsus length 2.17, total length 18.67, leg I length/carapace length 2.51; scopulae on distal metatarsus and tarsus; spine count Fe D 2, Fe PL 1, Pa PL 2 (proximal rubbed off), Ti PL 2, Ti RL 4, Me PL 2, Me RL 3, Ta 4; tibia length/width [TIL/ TID] 2.75.

GENITALIA ( Fig. 117L View Fig ). Spermathecae with two vesicles each; lateral vesicle relatively straight, widening towards tip, length 0.88, lateral vesicle length/genitalia width 0.33, length/width at base 1.66, crown un-demarcated; medial vesicle short, relatively straight and projecting postero-ventrally, medial vesicle length/genitalia width 0.18, length/width 2.56, medial vesicle length/lateral vesicle length 0.54.

Distribution and natural history

Aname olkola sp. nov. occurs in far northern Queensland, in the Cape York Peninsula bioregion, where it is known from two locations in and around Olkola National Park, west of the town of Laura ( Fig. 14 View Fig ). The form of burrows constructed by spiders of this species is unknown.