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

Aname mariala sp. nov.

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Figs 13 View Fig , 100 View Fig

Diagnosis

Males of A. mariala sp. nov. can be distinguished from all species for which males are known except A. albicula sp. nov. by a small body size (carapace length <4.0 mm), the presence of a short embolus (embolus length/ bulb length <1.5) that is very thin and sharp, a relatively thin metatarsus I (metatarsus I length / width>4), and the absence of thorn-like setae on the retrolateral palp tibia ( Fig. 100A–Q View Fig ). Males of A. mariala can be distinguished from those of A. albicula by the absence of an embolic apophysis on the copulatory organ, adjacent to the embolus ( Fig. 100L–M View Fig ; cf. Fig. 99 View Fig ).

Females of A. mariala sp. nov. are unknown.

Etymology

The specific epithet ‘ mariala ’ is a noun in apposition, referencing Mariala National Park, near Charleville in central Queensland, where the type specimen was found.

Type material

Holotype

AUSTRALIA – Queensland • ♂; about 15 km W of Mariala National Park , “Gumbardo” property off Adavale Cheepie Rd; 26°05′ S, 144°46′ E; Apr. 2001; T. Beutel leg.; pitfall trap, mulga; QMB S77354 View Materials .

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Description

Male (holotype, QMB S77354)

GENERAL ( Fig. 100A–Q View Fig ). Body length 9.41, in good condition, colour presumably faded due to preservation.

DORSAL PROSOMA ( Fig. 100A, E–F View Fig ). Carapace length 3.67, width 3.06, length/width 1.20, clypeus to fovea length/carapace length 0.68, caput width/carapace width 0.64, carapace pallid-orange, caput slighty darker than thorax, with T-shaped pigmented area along frontal and medial caput, reflective setae absent or inconspicuous, fovea procurved, fovea width/carapace length 0.12 ( Fig. 100A, F View Fig ); chelicerae orange, rastellum absent or inconspicuous, chelicerae length/carapace length 0.51 ( Fig. 100A View Fig ); eye group rectangular, width/length 1.99, eye tubercle present ( Fig. 100E View Fig ).

ABDOMEN ( Fig. 100B, D View Fig ). Abdomen length 3.91, pallid, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA ( Fig. 100C, G–I View Fig ). Labium cuspules absent ( Fig. 100H View Fig ); maxillae heel distinct, cuspules present, count =about 45, extending posteriorly onto heel, extending laterally about 35% of maxillae length ( Fig. 100C, I View Fig ); coxae cuspules absent, thorn-like setae on prolateral face present ( Fig. 100C, I View Fig ); sternum length/width 1.26, central sternum with consistent covering of short setae, row of longer setae around posterior edges ( Fig. 100G–H View Fig ); posterior sigilla ovoid, central sternum to posterior sigilla length/ sternum length 0.29, posterior sigilla length/sternum length 0.10 ( Fig. 100G–H View Fig ); other sigilla small, round and lateral ( Fig. 100G–H View Fig ).

LEG I ( Fig. 100N–Q View Fig ). Leg I pallid-orange, darker on distal femur, patella, and proximal metatarsus, femur length 3.45, patella length 2.05, tibia length 2.50, metatarsus length 2.67, tarsus length 1.71, total length 12.37, leg I length/carapace length 3.37 ( Fig. 100N–O View Fig ); scopulae on distal metatarsus and tarsus ( Fig. 100N–O View Fig ); spine count Fe D 1, Fe PL 1, Pa PL 3, Ti PL 0, Ti RL 1, Me PL 0, Me RL 0, Ta 0 ( Fig. 100N–O View Fig ); tibia length/width [TIL/TID] 3.48, even width along length, spur present, triangular, knuckle absent, megaspine angled at 27 degrees, length to distal face of spur/tibia length [TIS/TIL] 0.50, spur height/tibia width [TISH/TID] 0.59, megaspine length/tibia length 0.38 ( Fig. 100N–P View Fig ); metatarsus relatively straight, proximal excavation present, excavation straight with inconspicuous heel, heel rounded, excavation length/metatarsus length [MIPEL/MIL] 0.37, metatarsus length/width [MIL/MID] 5.52 ( Fig. 100N–O, Q View Fig ).

PEDIPALP ( Fig. 100J–M View Fig ). Tibia length 1.44, width 0.56, length/width [PTL/PTD] 2.59, asetose depression present, depression length/palp tibia length [PDL/PTL] 0.49, retrolateral face with consistent covering of light setae, ventral face with one spine-like, and one bristle-like seta below depression, prolateral face with one disto-ventral spine and a single medial spine, disto-medial spine present ( Fig. 100J–K View Fig ); patella prolateral face with 3 (proximal weak) spines ( Fig. 100J–K View Fig ); cymbium with scopulae present distally ( Fig. 100J–K View Fig ); copulatory organ total length 0.72, length/palp tibia length 0.50 ( Fig. 100L–M View Fig ); bulb length/width 1.13 ( Fig. 100L–M View Fig ); embolus tapering from bulb, attenuate, tapering and curving relatively evenly to point, one slight bend, at about 0.5 of length, width at base/bulb width 0.14, embolus length/bulb length 0.82 ( Fig. 100L–M View Fig ).

Distribution and natural history

Aname mariala sp. nov. occurs in south-western Queensland, in the Mulga Lands bioregion, where it is known from one location in Mariala National Park ( Fig. 13 View Fig ). The form of burrows constructed by spiders of this species is unknown.