Austrodomus oxoniensis ( Cooke, 1964 ) Rodrigues & Rheims, 2020

Rodrigues, Bruno V. B. & Rheims, Cristina A., 2020, An overview of the African genera of Prodidominae spiders: descriptions and remarks (Araneae: Gnaphosidae), Zootaxa 4799 (1), pp. 1-80 : 8

Austrodomus oxoniensis ( Cooke, 1964) comb. nov.

Figs 7 D–F

Katumbea oxoniensis Cooke, 1964: 281 , figs 9, 51, 59 (holotype female from Lake Tanganyika , Katumbi, Kungwe-Mahali Mts., Kigoma, Tanzania, [5°59’55.74”S, 29°47’24.40”E], deposited in OUMNH, examined).

Diagnosis. Females of Austrodomus oxoniensis comb. nov. are distinguished from other species of the genus in having the posterior margin of the epigynal plate bearing paired triangular, posteriorly directed projections with triangular pocket-like structures ( Figs 7D, E ). Males are unknown.

Description. Female. Total length: 3.50. Carapace 1.42 long, 0.90 wide; Abdomen 1.93 long, 1.35 wide; Sternum 0.80 long, 0.65 wide; Spinnerets ALS 0.23 long, 0.25 wide. Eye diameters: AME 0.06, ALE 0.07, PME 0.80, PLE 0.09; interdistances: AME–AME 0.02, PME–PME 0.03. Chelicerae 0.35 long. Leg measurements: I: 3.45 (0.93, 0.70, 0.70, 0.58, 0.54); II: 2.83 (0.80, 0.52, 0.55, 0.50, 0.46); III: 2.50 (0.70, 0.40, 0.50, 0.48, 0.42); IV: 3.89 (1.00, 0.60, 0.93, 0.76, 0.60). Leg spination: I—femur d0-1-0; II—femur d0-1-0. III—tibia v1p-0-0; metatarsus p0- 0-1, v0-0-1. IV—tibia v0-0-2; metatarsus p0-0-1, v0-0-1. Epigyne: copulatory openings large, separated from each other by their width ( Fig. 7D ). Vulva: proximal part of copulatory ducts diverging anteriorly; lateral convoluted part of copulatory ducts slender, 1/3 of proximal part width ( Figs 7E, F ).

Male. Unknown.

Distribution. Tanzania, only known from the type locality ( Fig. 10 ).

Figures

FIGURE 7. Austrodomus zuluensis, female: (A) epigyne, ventral view; (B) vulva, dorsal view, arrow to swollen pouch-like area; (C) vulva, schematic course of internal duct system. A. oxoniensis comb. nov. Female: (D) epigyne, ventral view; (E) vulva, dorsal view, arrow to swollen pouch-like area; (F) vulva, schematic course of internal duct system. CD—copulatory duct; CO—copulatory opening; FD—fertilization duct; PS—primary spermathecae. Scale bars: 0.25 mm.

FIGURE 10. Known distribution records of species of Austrodomus from Namibia, South Africa and Tanzania.