Barraina pilata, Richardson, 2022

Richardson, Barry J., 2022, Additions to the euophryine jumping spider fauna (Araneae: Salticidae) of Australia, Zootaxa 5141 (3), pp. 249-269 : 259-260

Barraina pilata n. sp.

Figs 41–52

Type material. Holotype: 1♀, Oaky Creek NR, at base of E side of Melville Range , New South Wales, 150.62°E, 31.12°S, L. Wilkie and H. Smith, 8 Dec. 2001 (AMS KS80913) . Paratypes: New South Wales: 1♂, Oaky Creek Nature Reserve; southern boundary of Reserve, approx. 400m from road, up fence line to West , very base of ENE side of Taggarts Mountain , 150.62, 31.12, G. Carter, 17 Nov. 2001, (AMS KS80901) ; 1♂, Mount Kaputar National Park : 1.5km West of Killarney Gap. just west of top of low ridge, access from hairpin bend, 400m west along ridge and downslope, 150.07°E, 30.15°S, H. Doherty and M. Elliot, 11 Dec. 2001 (AMS KS80900) ; 1♀, Mount Kaputar National Park, 600m below end of Bullawa Creek Rd, 150.10°E, 30.23°S, L. Wilkie and H. Smith, 11 Dec. 2001 (AMS KS80911) ; 1♀, Mount Kaputar National Park, Bullawa Creek Track, 1.1km past Foggy Dell turnoff, 150.08°E, 30.23°S, L. Wilkie and H. Smith, 11 Dec. 2001 (AMS KS80909) ; 2♂, Mount Kaputar National Park, base of north side of Mount Yulludunida , 150.12°E, 30.28°S, H. Doherty and M. Elliott, 11 Dec. 2001 (AMS KS80899) ; 1♂, Crown Res., Woods Reef, between road and Nangahrah Ck. 150.73°E. 30.38°S, H. Doherty and M. Elliott, 9 Dec. 2001 (AMS KS80902) ; 1♀, Kelvin SF, 8km N of Kelvin, 150.33°E, 30.75°S, H. Doherty and M. Elliott, 14 Dec. 2001 (AMS KS80908) ; 1♂, Dowe SF., 150.48°E 30.78°S, L. Wilkie and H. Smith, 14 Dec. 2001 (AMS KS80905); 1♀, Attunga SF, 8km W of Attunga on Inlet Rd, 150.90°E, 30.93°S, G. Carter, 6 Dec. 2001 (AMS KS80912); Crown Reserve, about 2km along Tintinhull Rd from Danuka Rd , just past bridge over creek and 150m up hill on north side of road, 150.98°E, 31.07°S, H. Doherty and M. Elliott, 6 Dec. 2001 (AMS KS80903) ; 1♀, Crown Land, Roadside Remnant veg, corner of New England Highway and Old Tamworth Rd , about 13 Km from Tamworth , 151.03°E, 31.08°S, G. Carter, (AMS KS80907) ; 1♀, W of Flagstaff Mtn ( Tamworth ), 150.98°E, 31.08°S, H. Doherty and M. Elliott, 6 Dec. 2001 (AMS KS80910) ; 1♂, Oaky Creek Nature Reserve, up tributary on W range; ridge on footslopes of NE side of Figtree Mt. , 150.62°E, 31.10°S, L. Wilkie and H. Smith 17 Nov. 2001 (AMS KS80904) ; 1♂, Oaky Creek Nature Reserve, Southern end of Melville Range , 150.63°E. 31.12°S, G. Carter, 8 Dec. 2001 (AMS KS80906) .

Other material examined: 3♂, TSR; approx. 40 km along Bruxner Hwy from Bonshaw to Tenterfield; 150m S of road, approx. 500m S of Dumaresq River, 151.50°E, 29.02°S, H. Doherty and M. Elliot, 22 Nov. 2001 (AMS KS80898) .

Etymology. The name reflects the spear-like morphology of the embolus.

Diagnosis. Widest point of the cephalothorax behind PLE. In the female, clypeus with long grey fringe. Palps brown with off-white tibia and metatarsals and long grey hair covering. Unlike all other species, the copulatory openings are far from the spermathecae and wider apart than the width across the spermathecae. There are no loops in the very long insemination ducts. These pass down the ventral surface of the spermathecae and join towards the posterior edge of the spermatheca. The male has a strong white clupeal fringe. Each embolus is long, with a spearlike twisted shape with a complex spiral section midway along its length (contra B. melanoros n. sp.). It arises as a visible circular section at the base of the ‘spear’ (contra B. anfracta ).

Description. Female: Pars cephalica black, remainder of the cephalothorax dark brown. Clypeus narrow, tan, with a fringe of grey hairs. Chelicerae not geniculate, tan with narrow black median and lateral edges. One promarginal tooth and one medium sized, unidentate sharp retromarginal tooth. Endites and labium tan. Sternum yellow. Dorsal abdomen with a black, lace-like covering over a light brown background. Spinnerets yellow or light brown. Ventral abdomen as for the dorsal surface but with four lines of light brown markings. Legs mid-brown with longitudinal stripes and strong spines, L1 similar to other legs, without a fringe on patella and tibia. The palp with a scattered covering of long, light grey hairs. Epigynum: The epigyne includes a pair of small, oval-shaped atria strongly pigmented on the lateral sides. The copulatory openings are placed within the anterior edge of the atria. The insemination ducts are simple and without coils. They first move in an anterior then lateral direction before moving rearwards to join the dorsal surface of the rounded spermathecae near the median edge. The spermathecae are placed within the atria and the posterior edges of the atria are well forward of the epigastric fold. The origins of the fertilization ducts are placed on the anterior dorsal edge of the spermathecae. Dimensions (Holotype): CL 1.7, EFL 1.65, Al 1.75, CW 1.32, AEW 1.1, AMEW 0.7, PEW 1.05, L1 2.65 (0.75+0.45+0.55+0.4+0.5), L2 2.05 (0.6+0.3+0.4+0.4+0.35), L3 2.5 (0.75+0.4+0.55+0.5+0.3), L4 2.9 (0.75+0.55+0.6+0.6+0.4).

Male: As for the female. Palp: mid-brown, tibia with single short, hooked apophysis. The tegulum with small hook-like proximal lobe and a small projection beside the embolus. Each embolus is long, with a tight spiral, spear-like shape and is placed on a small distal lobe. Dimensions (Paratype): CL 1.2, EFL 0.5, Al 1.0, CW 0.9, AEW 0.8, AMEW 0.50, PEW 0.85, L1 2.2 (0.6+0.24+0.4+0.3+0.2), L2 1.55 (0.8+0.3+0.25+0.25+0.25), L3 1.9 (0.85+0.2+0.35+0.3+0.2), L4 2.05 (0.65+0.3+0.45+0.3+0.35).

Distribution and Biology. Barraina pilata n. sp. has been collected in pitfall traps and lives on the ground in woodland at many locations including reserves on the western side of the Great Dividing Range in north-eastern New South Wales ( Fig. 52 ). BIOCLIM predicts it may be more widespread.As a consequence, recommended IUCN Red List Category LC. Because of its limited known range it may be at risk through climate change or habitat loss or degradation.

Figures

FIGURES 41–52. Barraina pilata n. sp. Holotype (KS80913), (female; 41 dorsal, 42 ventral, 43 lateral, 44 anterior, 45 external epigyne; semi-diagrammatic, dissected and cleared epigyne, 46 dorsal, 47 ventral). Paratype (KS80904), (male; 48 anterior, palp, 59 posterior, 50 ventral, 51 anterior views). 52 distribution map with BIOCLIM predicted distribution. Scales: 0.2mm.