Sinopoda globosa, Zhang, Bao-Shi, Zhang, Zhi-Sheng & Zhang, Feng, 2015

Zhang, Bao-Shi, Zhang, Zhi-Sheng & Zhang, Feng, 2015, Three new Sinopoda species (Araneae: Sparassidae) from southern China, Zootaxa 3974 (1), pp. 59-75 : 65-69

Sinopoda globosa sp. nov.

( Figs 17–32 )

Type material: Holotype: ♂, CHINA: Sichuan Province: Wolong Natural Reserve, 30°58′N, 103°15′E, 1200 m, near road, 19 July 2003, J.X. Zhang ( MHBU, SP-SC-03-0025).

Paratype: 1♀, same data as holotype ( MHBU, SP-SC-03-0026).

Etymology. The specific name is derived from the Latin word ‘globosus, -a, -um’, meaning ‘globose’, referring to the shape of spermathecae; adjective.

Diagnosis. The male and female of Sinopoda globosa sp. nov. are similar to those of S. triangula and S. longiducta sp. nov. in the long embolus, the triangular projection of subdistal embolus and the large globose spermathecae, and the diameter of the PP is almost twice the diameter of the internal duct system. The male differs from S. triangula by: conductor as long as tegulum; the median part of embolus wider than the proximal part ( Figs 19–21 , 26–29 ). For differences from S. longiducta sp. nov. see diagnosis of this species below. The female of the new species differs from S. triangula and S. longiducta sp. nov. by: glandular appendages short, extending posteriorly not in posterior half of internal duct system and converging apically; distance from glandular appendages to posterior part of spermatheca about 2.5 times of internal duct diameter ( Figs 24–25 , 30–32 ).

Description. Male (Holotype): total length 11.90; prosoma 6.10 long, 5.30 wide; opisthosoma 5.80 long, 4.00 wide. Dorsal prosoma yellow, lateral margins dark especially in posterior half, lateral patches wide and reddishbrown. Fovea and radial furrows distinctly marked. Median field of prosoma with a reddish-brown median line from fovea to posterior eye row and two small dots in front of the fovea. Ocular area reddish-brown. Eye diameters and interdistances: AME 0.26, ALE 0.40, PME 0.33, PLE 0.42; AME–AME 0.28, AME–ALE 0.15, PME–PME 0.41, PME–PLE 0.59. MOA 0.91 long, anterior width 0.77, posterior width 1.04. Clypeus height 0.27. Chelicerae reddish-brown, with 3 anterior and 4 posterior teeth, and with 40 denticles in elongated patch close to anterior teeth. Labium and gnathocoxae brown, both with distal parts brighter. Sternum brown, margin reddish-brown. Legs yellow, ventral metatarsus III with sparse double row of bristles in proximal half, IV with dense double row of bristles along entire length. Leg measurements: I 33.40 (9.20, 2.30, 8.90, 9.90, 3.10), II 33.50 (9.20, 2.30, 8.90, 9.90, 3.20), III 30.10 (8.80, 2.40, 7.90, 8.10, 2.90), IV 33.20 (9.10, 2.20, 8.90, 9.90, 3.10). Leg formula: 2143. Leg spination: palp 131, 101, 2121; femur I–III 323, IV 331; patella I–III 101, IV 100; tibia I 2426, II–III 2326, IV 2226; metatarsus I–II 2024, III 2026, IV 3036. Dorsal opisthosoma gray-brown, heart patch and muscle impressions yellow, lateral field of opisthosoma with three pairs of black patches, posterior part with a black transversal band; venter gray-brown ( Figs 17–18 ).

Palp ( Figs 19–21 , 26–29 ). Embolus long and slightly curving, arising from tegulum in a 7 to 8-o'clock-position (left palp in ventral view), embolus distally willow-leaf-shaped, and running parallel along embolic apophysis basally, slightly diverging in the apical part, basal part of embolus visible from ventral view, distal embolic apophysis hook-shaped; sperm duct slightly curved from ventral view; the base of RTA with a distinct brush of stiff setae; dRTA slender and finger-shaped, vRTA stout, with a pointed tip from ventral view; cymbium longer than tibia.

Female (Paratype): total length 14.40: prosoma 7.10 long, 6.20 wide; opisthosoma 7.30 long, 4.60 wide. Eye diameters and interdistances: AME 0.27, ALE 0.43, PME 0.34, PLE 0.44; AME–AME 0.30, AME–ALE 0.16, PME–PME 0.42, PME–PLE 0.60. MOA 0.96 long, anterior width 0.79, posterior width 1.07. Clypeus height 0.28. Leg measurements: I 22.40 (6.80, 1.80, 5.90, 5.80, 2.10), II 26.50 (7.60, 2.80, 7.10, 6.80, 2.20), III 19.30 (6.80, 1.80, 4.50, 4.30, 1.90), IV 20.30 (6.80, 1.90, 4.80, 4.70, 2.10). Leg formula: 2143. Leg spination: palp 131, 101, 2121, 1014; femur I 323, II 333, III 323, IV 321; patella I-III 101, IV 100; tibia I 2126, II 2326, III 2226, IV 2326; metatarsus I–II 1014, III 2026, IV 3036. The shape, color and markings of body as in male ( Figs 22–23 ).

Epigyne ( Figs 24–25 , 30–32 ). Epigynal field wider than long, without anterior bands; lateral lobes fused, posteriorly with median indentation; epigynal pockets running from latero-posterior to medio-anterior, where copulatory openings are situated; lobal septum wide; middle part of internal ducts running parallel along the median line, anterior part narrower than posterior part; glandular appendages short; spermathecae bulging laterally and PP globose.

Distribution. China (Sichuan).

Figures

FIGURES 17 – 18. Sinopoda globosa sp. nov. 17 – 18 habitus of male holotype (17 dorsal, 18 ventral). Scale bar: 17 – 18: 2 mm.

FIGURES 19 – 21. Sinopoda globosa sp. nov., male holotype. 19 left palp, ventral view; 20 – 21 embolus and embolic apophysis (20 ventral, 21 prolateral). Scale bars: 19: 1 mm; 20 – 21: 0.2 mm.

FIGURES 22 – 25. Sinopoda globosa sp. nov., female paratype. 22 – 23 habitus (22 dorsal, 23 ventral); 24 epigyne, ventral; 25 internal duct system, dorsal. Scale bars: 22 – 23: 2 mm; 24 – 25: 0.2 mm.

FIGURES 26 – 32. Sinopoda globosa sp. nov. 26 – 28 left palp of male holotype (26 prolateral, 27 ventral, 28 retrolateral); 29 embolus and embolic apophysis, prolateral; 30 – 32 female paratype (30 epigyne ventral, 31 internal duct system dorsal, 32 right half of internal duct system lateral). Scale bar: 26 – 32: 0.5 mm.