Aname callitra sp. nov.

urn:lsid:zoobank.org:act: B21175C2-AEE2-4A3E-AA78-DA5700DFA420

Figs 13, 94

Diagnosis

Males of A. callitra sp. nov. can be distinguished from all species for which males are known except A. corundaria sp. nov. by a small body size (carapace length <4.0 mm), and the presence of a copulatory organ with a short embolus (embolus length / bulb length <1.5) and an angular bulb with a slight ridge adjacent to the embolus (Fig. 94J–Q). Males of A. callitra can be distinguished from those of A. corundaria by the presence of a thicker, straighter embolus (Fig. 94L–M; cf. Fig. 95).

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

Etymology

The specific epithet ‘ callitra ’ is an ad-hoc formation, referencing the cypress pine habitat in which both specimens of this species were collected. It is to be treated as a noun.

Type material

Holotype

AUSTRALIA – Queensland • ♂; Carnarvon Station; 24°50′ S, 147°38′ E; 690 m a.s.l.; 25 Nov.–14 Dec. 2010; C. Zwick leg.; pitfall trap, edge of Callitris stand; QMB S118363.

Paratypes

AUSTRALIA – Queensland • 3 ♂♂; Carnarvon Station, 11.5 km WSW of headquarters; 24°51′ S, 147°39′ E; 1 Dec. 2012 – 17 Jan. 2013; G.B. Monteith and C. Wilson leg.; gutter trap, Callitris; QMB S104753.

Description

Male (holotype, QMB S118363)

GENERAL (Fig. 94A–Q). Body length 14.59, in good condition, colour presumably faded due to preservation.

DORSAL PROSOMA (Fig. 94A, E–F). Carapace length 5.12, width 4.10, length/width 1.25, clypeus to fovea length/carapace length 0.69, caput width/carapace width 0.62, carapace red-brown, lighter patches running radially down sides of caput, reflective setae present, light on caput, light on thorax, fovea procurved, fovea width/carapace length 0.10 (Fig. 94A, F); chelicerae red-brown, rastellum absent or inconspicuous, chelicerae length/carapace length 0.51 (Fig. 94A); eye group rectangular, width/length 1.8, eye tubercle present (Fig. 94E).

ABDOMEN (Fig. 94B, D). Abdomen length 6.51, grey, dorsal pattern absent, with consistent cover of short setae.

VENTRAL PROSOMA (Fig. 94C, G–I). Labium cuspules absent (Fig. 94H); maxillae heel distinct, cuspules present, count =about 80, extending posteriorly onto heel, extending laterally about 40% of maxillae length (Fig. 94C, I); coxae cuspules absent, thorn-like setae on prolateral face present (Fig. 94C, I); sternum length/width 1.24, central sternum with consistent covering of short setae, row of longer setae around posterior edges (Fig. 94G–H); posterior sigilla circular, central sternum to posterior sigilla length/sternum length 0.27, posterior sigilla length/sternum length 0.09 (Fig. 94G–H); other sigilla small, round and lateral (Fig. 94G–H).

LEG I (Fig. 94N–Q). Leg I orange-brown, reflective setae on dorsal femur, femur length 4.39, patella length 3.04, tibia length 3.17, metatarsus length 3.51, tarsus length 2.04, total length 16.15, leg I length/ carapace length 3.15 (Fig. 94N–O); scopulae on distal metatarsus and tarsus (Fig. 94N–O); spine count Fe D 1, Fe PL 1, Pa PL 2, Ti PL 0, Ti RL 0, Me PL 0, Me RL 0, Ta 0 (Fig. 94N–O); tibia length/ width [TIL/TID] 3.14, widening from proximal end to spur before narrowing again towards distal end, spur present, digitiform, knuckle absent, megaspine angled at 30 degrees, length to distal face of spur/ tibia length [TIS/TIL] 0.55, spur height/tibia width [TISH/TID] 0.82, megaspine length/tibia length 0.26 (Fig. 94N–P); metatarsus slightly sinuous, proximal excavation present, excavation concave with inconspicuous heel, heel rounded, excavation length/metatarsus length [MIPEL/MIL] 0.54, metatarsus length/width [MIL/MID] 4.55 (Fig. 94N–O, Q).

PEDIPALP (Fig. 94J–M). Tibia length 2.01, width 0.81, length/width [PTL/PTD] 2.49, asetose depression present, depression length/palp tibia length [PDL/PTL] 0.57, retrolateral face with short, thorn-like setae along retrolateral edge of depression, getting denser proximally, ventral face with two elongate bristle-like setae below depression, prolateral face with two disto-ventral spines, disto-medial spine absent (Fig. 94J–K); patella prolateral face with 2 (proximal rubbed off) spines (Fig. 94J–K); cymbium with scopulae present distally (Fig. 94J–K); copulatory organ total length 1.01, length/palp tibia length 0.50 (Fig. 94L–M); bulb length/width 1.11, with angular ridge on bulb adjacent to embolus, embolus tapering and curving relatively evenly to point (Fig. 94L–M); embolus slightly reflexed, attenuate, tapering and curving relatively evenly to point, width at base/bulb width 0.16, embolus length/bulb length 1.00 (Fig. 94L–M).

Distribution and natural history

Aname callitra sp. nov. occurs in central Queensland, in the Brigalow Belt South bioregion, in the Upper Warrego region of the Carnarvon Station Reserve (Fig. 13). The form of burrows constructed by spiders of this species is unknown.