Hamataliwa oculata sp. nov.

Figs 10–12

Type material (CHINA: Yunnan, Xishuangbanna, Mengla County, Menglun Town, Menglun Nature Reserve, leg. G. Zheng, canopy fogging): Holotype: 1 Ƥ, Secondary tropical seasonal moist forest (N21º54.718', E101º16.940', 645 m), 27 July 2007 (IZCAS-Ar. 19025). Paratypes: 1 3, 5 Ƥ, same data as holotype (IZCAS-Ar. 19026–19031); 3 Ƥ, Secondary tropical montane evergreen broad-leaved forest (N21º57.809', E101º12.173', 888 m), 4 August 2007 (IZCAS-Ar. 19032–19034); 2 Ƥ, Secondary tropical seasonal moist forest (N21º54.607', E101º17.005', 633 m), 28 July 2007 (IZCAS-Ar. 19035–19036); 1 Ƥ, Secondary tropical seasonal moist forest (N21º54.390', E101º16.811', 612 m), 10 August 2007 (IZCAS-Ar. 19037); 1 Ƥ, Primary tropical seasonal rainforest (N21º55.038', E101º16.500', 558 m), 22 July 2007, G. Zheng (IZCAS-Ar. 19038); 2 Ƥ, Primary tropical seasonal rainforest (N21º54.725', E101º13.261', 734 m), 8 August 2007 (IZCAS-Ar. 19039–19040); 4 Ƥ, Secondary tropical seasonal moist forest (N21º54.984', E101º16.982', 656 m), 10 August 2007, G. Zheng (IZCAS-Ar. 19041–19044); 4 Ƥ, Primary tropical seasonal rainforest (N21º57.445', E101º12.997', 744 m), 30 July 2007 (IZCAS-Ar. 19045–19048).

Etymology. The specific name is an adjective from the Latin word oculatus (eye-shaped), and refers to the anterior part of the epigynal atrium with a pair of eye-shaped depressions.

Diagnosis. This species can be separated from other congeneric species by the epigynum, particularly the pair of eye-shaped depressions and the twisting of the copulatory ducts. The male can be separated from other congeneric species by the shape of the RTA (Figs 11 B–D, 12A–B).

Description. Female (holotype): Total length 6.30. Prosoma 2.60 long, 2.00 wide; opisthosoma 3.60 long, 2.00 wide. Carapace light yellowish brown with sparse grayish black scales. Ocular area grayish black with grayish white scales. Eye measurements: AME 0.09, ALE 0.21, PME 0.19, PLE 0.19, AME-AME 0.12; AME-ALE 0.07; PME-PME 0.31; PME-PLE 0.32. Eye row width measurement: I 0.27, II 0.64, III 1.15, IV 0.64. Clypeus height 0.52. Sternum light yellow; chelicera yellow, labium and endites brown, chelicera with 2 pro- (1 large, 1 small) and 1 small retromarginal teeth. Legs yellow with long spines. Leg measurements: I 9.60 (2.80, 3.50, 2.20, 1.10); II 8.70 (2.60, 3.20, 2.00, 0.90); III 6.75 (2.00, 2.40, 1.60, 0.75); IV 6.95 (2.20, 2.25, 1.70, 0.80), leg formula: 1243. Opisthosoma anteriorly with yellow spots, posteriorly with yellow chevrons; laterally with grayish black stripes; ventrally grayish.

Epigynum (Figs 10 B–C, 12C–D). Epigynum with a pair of depressions anteriorly, copulatory ducts twisted, spermathecae globular.

Male (paratype, IZCAS-Ar. 19026): Total length 5.40. Prosoma 2.50 long, 2.00 wide; opisthosoma 2.70 long, 1.50 wide. Body color paler than in female. Eye measurements: AME 0.08, ALE 0.20, PME 0.18, PLE 0.17, AME- AME 0.11; AME-ALE 0.06; PME-PME 0.25; PME-PLE 0.28. Eye row width measurement: I 0.27, II 0.57, III 1.10, IV 0.56. Clypeus height 0.40. Leg measurements: I 9.60 (2.60, 3.50, 2.30, 1.20); II 8.85 (2.50, 3.20, 2.15, 1.00); III 7.00 (2.00, 2.40, 1.80, 0.80); IV 7.10 (2.10, 2.20, 1.90, 0.90), leg formula: 1243. Opisthosoma yellow, laterally with grayish black stripes, ventrally gray.

Palp (Figs 11 B–D, 12A–B). VTA short, digitiform; RTA twisted; conductor and apex of median apophysis sharp.

Variation. Total length: Ƥ 5.50–6.50 (n=17).

Distribution. China (Yunnan).