A New Subfamily of Spiders with Grate-shaped Tapeta from Australia and Papua New Guinea (Araneae: Stiphidiidae: Borralinae) Author Gray, Michael R. Author Smith, Helen M. text Records of the Australian Museum 2008 2008-06-25 60 1 13 44 http://dx.doi.org/10.3853/j.0067-1975.60.2008.1493 journal article 10.3853/j.0067-1975.60.2008.1493 2201-4349 5239981 Karriella walpolensis n.sp. Figs 8c , 14a–e , 15c,d Type material. Western Australia : HOLOTYPE : ? , WAM T78282,Walpole- Nornalup NP , Hill Top Rd , 34°57'S 116°46'E , M.R. Gray , pitfall traps in litter, 31 Jan.–5 Mar. 1979 . PARATYPES : ! , KS14554, 15 km E of Walpole along Valley of the Giants Rd , 34°56'S 116°48'E , 7 Feb. 1979 , M.R. Gray , in log crevice, in retreat funnel with large filmy sheet web, c. 40× 20 cm ; ? , KS15383, data as for holotype; 3 !! , KS7240, Walpole-Nornalup NP , Hilltop Rd 4 km SW of highway turn-off, 34°58'S 116°46'E , 8 Feb. 1979 , M.R. Gray , under logs, large fine mesh, suspended sheet web; ? , KS14572, as KS7240 but 2 km from highway turn off; ! , WAM T78283, Walpole-Nornalup NP , Gully Road , 34°58'S 116°47'E , 15 Feb. 1979 , M.R. Gray , pitfall traps in litter, 31 Jan.–5 Mar. 1979 ; ! , KS14623, Walpole- Nornalup NP , 2 km along Tinglewood-Mt Clare Rd , 34°58'S 116°46'E , 9 Feb. 1979 , M.R. Gray , in curled bark, filmy horizontal web c. 30 × 20 cm extending c. 40 cm above ground; ! , KS14642, Walpole-Nornalup NP , 34°58'S 116°46'E , 9 Feb. 1979 , M.R. Gray , under logs . Diagnosis . Differs from K. treenensis by the more open dorsal groove on male palpal RDTA; female with a narrower epigynal fossa and copulatory ducts in a more extended S-shape. Description Male ( holotype ). BL 8.57, CL 4.90 (range 3.67–4.90), CW 3.31, CapW 1.96, EGW 1.22, LL 0.84, LW 0.73, SL 2.37, SW 1.76. Legs: 1(4/2)3 (I: 19.92; II: 17.17; III: 14.58; IV: 17.17); ratio tibia I length:CW = 1:0.66. “Stridulatory” bristles usually present on paturon and palpal femur, but relatively scattered and sometimes indistinct ( Fig. 15c,d ). Male palp ( Fig. 14a–c ). Palpal bulb as wide as long. Dorsal groove on RDTA more open and pocket-like. Distal conductor with a smaller flange-like process sub-apically (cf. K. treenensis ). Female (KS14554). BL 8.94, CL 4.45 (range 3.47–4.57), CW 2.86, CapW 2.16, EGW 1.31, LL 0.76, LW 0.67, SL 1.96, SW 1.67. Legs: 1423 (I: 15.67; II: 13.75; III: 11.92; IV: 14.17); ratio tibia I length:CW = 1:0.72. Epigynum ( Fig. 14d,e ). Fossa similar in external structure to K. treenensis , but usually narrower—fossa length (from anterior margin to line between epigynal knob centres) c. 3× fossa width. Posterior epigynal “knobs” are sometimes damaged or broken off. Internal genitalia with copulatory ducts longer and forming a looser S-shape with the spermathecae, cf. K. treenensis . Distribution . Walpole and Nornalup areas of southwest Western Australia . Etymology . The species name refers to the town of Walpole near the type locality.