Kochosa nigra sp. nov.

(Figs 13, 17A–C)

Holotype. Female, Blackdown Tableland, via Dingo (23º50'S 149º03'E, Queensland, AUSTRALIA), R. J. Raven, 1–6 February 1981, pitfall traps (QM S71611).

Etymology. The specific epithet is an adjective in apposition derived from the Latin nigra (= black) and refers to the type locality, Blackdown Tableland.

Other material examined. Only known from holotype.

Diagnosis. Females of K. nigra sp. nov. are most similar to K. confusa sp. nov. due to their triangular raised median septum of the epigyne (Figs 11C, 17C). However, in K. nigra sp. nov. the edge of the median septum is not connected medially (Fig. 17C), whereas it is continuous in K. confusa sp. nov (Fig. 11C).

Description.

Male. Unknown.

Female ( based on holotype, QM S71611) .

Cephalothorax. Dorsally olive-brown with darker radial pattern; median light band narrowing posteriorly (Fig. 17A). Sternum dark brown with scattered small light spots (Fig. 17B).

Abdomen. Dorsally dark olive-brown; mottled with light brown small spots; cardiac mark yellow-brown and continuous, narrowing posteriorly (Fig. 17A). Venter light olive-brown; spinnerets yellow-brown (Fig. 16B).

Epigyne (Fig. 17C). Ventral view: ovoid wider than long, V-shaped median septum, spermathecal heads distinctly visible through cuticle and almost touching medially; dorsal view not examined as only known from single holotype.

Legs. Light brown with dark annulations; ventral aspect of patella and tibia IV distinctly darker; spination of leg I: femur: 3 dorsal, 1 apicoprolateral; tibia: 3 ventral pairs, 1 prolateral; metatarsus: 3 ventral pairs; 3 prolateral, 1 apicoretrolateral.

Measurements. TL 4.61, CL 2.42, CW 1.56. Eyes: AME 0.09, ALE 0.08, PME 0.23, PLE 0.21. Row of eyes: AE 0.49, PME 0.70, PLE 0.81. Sternum (length/width) 1.00/0.81. Labium (length/width) 0.22/0.26. AL 1.80, AW 1.72. Legs: light brown with dark annulations; length of segments (femur + patella/tibia + metatarsus + tarsus = total length): Pedipalp 0.86+0.70+-+0.72 = 2.28, I 1.51+1.86+107+ 0.81 = 5.26, II 1.37+1.60+1.09+0.77 = 4.84, III 1.23+1.42+1.23+0.70 = 4.58, IV 1.74+2.07+2.02+1.00 = 6.84.

Life history and habitat preferences. Unknown, only known from holotype female collected in February.

Distribution. Kochosa nigra sp. nov. is only known from its type locality (Fig. 13).