Barraina anfracta, Richardson, Barry J., 2013

Richardson, Barry J., 2013, New unidentate jumping spider genera (Araneae: Salticidae) from Australia, Zootaxa 3716 (3), pp. 460-474 : 464-466

Barraina anfracta n. sp.

Figs 10–17

Type material. Holotype: M, 4km E of Lake Barine, Qld, 145.68°E, 17.27°S, R. Taylor, J. Feehan, 1 Aug.1971 (ANIC 42 000915).

Paratypes: 2F, details same as holotype.

Other material examined. 1M, 1 imm., Mt Spec, Qld, 146.15°E, 18.92°S, M. Cermak, 4 Nov 95, (ANIC, 42 000897); 1M, Mission Beach, Qld, 146.07°E, 17.87°S, M. Cermak, 29 Jan 96, (ANIC, 42 000896); 1M, same locality, M. Cermak, 1 Apr 96, (ANIC, 42 000901); 1M, same locality, M. Cermak, 29 Jan 96, (ANIC, 42 000868); 1M, same locality, M. Cermak, 1 Apr 96, (ANIC, 42 000903); 1M, same locality, M. Cermak, 29 Jan 96, (ANIC, 42 000876); 1M, same locality, M. Cermak, 29 Jan 96, (ANIC, 42 000877); 1M, same locality, M. Cermak, 1 Apr 96, (ANIC, 42 000899); 1M, McNammee Creek, Qld, 145.80°E, 17.67°S, R. Taylor, J. Feehan, 8 Jul 71, (ANIC, 42 000706); 2M, McNammee Creek, Qld, 145.80°E, 17.67°S, R. Taylor, J. Feehan, 8 Jul 71, (ANIC, 42 000710); 1M, Longlands Gap, Qld, 145.48°E, 17.47°S, P. Zborowski, 6 Mar 95, (ANIC, 42 000843); 1M, Upper Mugrave R, Qld, 145.78°E, 17.27°S, R. Taylor, J. Feehan, 19 Jun 71, (ANIC, 42 001458); 1M, 2km WSW Cape Tribulation, Qld, 145.45°E, 16.08°S, L. Umback, 5 Dec 95, (ANIC, 42 000885); 2M, 1km WNW Cape Tribulation, Qld, 145.47°E, 16.07°S, L. Umback, 1 Feb 96, (ANIC, 42 000832); 1M, same location, L. Umback, 4 Jan 96, (ANIC, 42 000826); 1M, same location, L. Umback, 5 Oct 95, (ANIC, 42 000898).

Etymology. From the Latin; winding or sinuous, reflecting the shape of the embolus.

Diagnosis. As for genus.

Description. Male: Cephalothorax mid to dark orange with pars cephalica somewhat darker. Surrounds of ALE, PME and PLE, black. Clypeus narrow, tan, without a fringe of hairs. Chelicerae weakly geniculate, tan with narrow black lateral edge. Two promarginal teeth and one medium sized, unidentate blunt retromarginal tooth. Endites and labium tan. Sternum yellow. Dorsal abdomen yellow with a pair of longitudinal black patches. Spinnerets yellow. Ventral abdomen brown. Legs dark brown with strong spines, L1 more robust and larger than other legs, without a fringe on patella and tibia. Palp: dark brown, cymbium mid-brown, tibia dark brown, with single medium sized blunt apophysis. The tegulum are long with a small proximal lobe. Each embolus follows an anticlockwise spiral and lies in the midline between two distal lobes. Dimensions: CL 1.5, EFL 0.8, CW 1.2, AEW 1.2, AMEW 0.7, PEW 1.1, AL 1.2, P1+T1 1.2, L1 3.4 (1.2+0.4+0.8+0.6+0.4), L2 2.7 (0.8+0.4+0.6+0.6+0.3), L3 3.0 (1.0+0.5+0.6+0.6+0.3), L4 2.8 (0.9+0.4+0.6+1.7+0.3).

Female: Cephalothorax mid to dark orange with pars cephalica somewhat darker. Surrounds of ALE, PME and PLE, black. Clypeus narrow, mid-brown, without a fringe of hairs. Chelicerae straight, mid-brown. Two promarginal teeth and one medium sized, unidentate blunt retromarginal tooth. Endites and labium mid-brown. Sternum yellow. Dorsal abdomen yellow with a pair of lateral black markings. Spinnerets yellow. Ventral abdomen yellow. Legs mid-brown with strong spines, L1 slightly larger than other legs, without a fringe on patella and tibia.

Epigynum: The epigyne includes a pair of small dark brown oval-shaped fossae. The copulatory openings are placed within the fossae. The insemination ducts join the median edge of the rounded spermatheca. The spermatheca are posterior to the fossae and the posterior edge of the spermathecae abut the epigastric fold. Fertilization ducts are on the anterior dorsal edge of the spermathecae. Dimensions: CL 1.4, EFL 0.7, CW 1.0, AEW 0.9, AMEW 0.6, PEW 0.9, AL 1.5, P1+T1 0.9, L1 2.5 (0.8+0.4+0.5+0.4+0.2), L2 2.1 (0.6+0.3+0.5+0.4+0.2), L3 2.4 (0.9+0.3+0.5+0.5+0.2), L4 2.6 (0.8+0.3+0.5+0.6+0.4).

Distribution and biology. Occurs widely in litter in northern Queensland rainforests ( Fig. 10 ). Widespread in National Parks, likely IUCN Red List Category LC.

Figures

FIGURE 10. Map showing the geographical origins of the specimens studied for Ananeon howardensis (●), Barraina anfracta (■), Frewena maculata (▼) and Pungalina weiri (▲).

FIGURES 11 – 17. Barraina anfracta n. sp. 11 – 12 dorsal view (11 female, 12 male); 13 – 14 female genitalia (13 ventral view of external characteristics, 14 dorsal view of cleared specimen); 15 – 17 male palp (15 posterior lateral view, 16 ventral view, 17 anterior lateral view). Scale: total body 1 mm; remainder 0.2 mm.