Pseudopoda acuminata, Zhang, Feng, Zhang, Bao-Shi & Zhang, Zhi-Sheng, 2013

Zhang, Feng, Zhang, Bao-Shi & Zhang, Zhi-Sheng, 2013, New species of Pseudopoda Jaeger, 2000 from Southern China (Araneae, Sparassidae), ZooKeys 361, pp. 37-60 : 39-41

Pseudopoda acuminata sp. n. Figs 1-17

Type material.

Holotype ♂ ( SP–KKS–10– 0816), from CHINA: Guizhou Province, Suiyang County, Kuankuoshui Nature Reserve (28°17'N, 107°11'E, 1200 m), 16. VIII.2010, Z.S. Zhang leg. (hand collecting), deposited in SWUC. Paratype: 1♀ ( SP–KKS–10– 0817), same data as holotype.

Etymology.

The specific name is derived from the Latin word 'acuminatus, -a, - um’, meaning ‘acuminate’, referring to the acute shape of the embolic projection; adjective.

Diagnosis.

Male and female of Pseudopoda acuminata sp. n. resemble those of Pseudopoda contentio Jäger & Vedel, 2007 by: embolus sickle-shaped and bent in a semicircle, embolic projection small, anterior margins of lateral lobes diagonal, internal duct system visible through cuticle in a ventral view as large, rather elongated patches. They are distinguished from the latter species by the following combination of characters: embolic projection spine-shaped (Figs 4, 11, 13); dorsal branch of retrolateral tibial apophysis slightly curved, ventral branch as a small hump (Figs 4-5, 11-12); anterior rims of lateral lobes curved, running more diagonal and pointing 30° anterio-laterally (Figs 8, 14); extending part of lateral lobes more narrow in dorsal view (Figs 9, 15); posterior end of first winding of internal duct system covered by lateral lobes (Figs 9, 15).

Description.

Holotype ( SP–KKS–10– 0816): total length 11.23; prosoma 6.61 long, 4.82 wide; opisthosoma 4.58 long, 2.83 wide. Prosoma with some setae. Fovea long, longitudinal. Coloration: Dorsal shield of prosoma yellow brown. Radial furrows brownish. Fovea dark brown. Ocular area yellowish brown. Chelicerae yellowish brown. Labium, gnathocoxae and sternum yellow. Legs yellow, with dark dots randomly distributed, and especially on the setae and spine bases of coxa and femur. Opisthosoma color overall dark brown (Fig. 1), yellowish anterior-dorsally, ventral median dark brown (Fig. 2). Both eye rows slightly recurved. Eye diameters and interdistances: AME 0.26, ALE 0.36, PME 0.27, PLE 0.36; AME–AME 0.29, AME–ALE 0.05, PME–PME 0.42, PME–PLE 0.49. MOA 0.87 long, anterior width 0.60, posterior width 0.87. Clypeus height 0.26. Chelicerae with three promarginal and four retromarginal teeth, and with thirteen denticles between them. Sternum with dark setae. Leg measurements: I 24.25 (6.21, 2.10, 6.82, 6.52, 2.60), II 24.44 (6.23, 2.14, 6.88, 6.55, 2.64), III 23.79 (6.13, 1.96, 6.89, 6.35, 2.37), IV 24.12 (6.18, 2.03, 6.82, 6.52, 2.57). Leg formula: 2143. Leg spination: palps 131, 101, 2121; femur I–II 323, III 322, IV 331; patella I–III 101, IV 001; tibia I–II 2226, III–IV 2126; metatarsus I–II 2024, III 2026, IV 3036. Male palp. Embolus sickle-shaped, arising from 9- to 10- o’clock-position on tegulum, embolic tip pointing prolaterally (Figs 3-4, 10-11); sperm duct running submarginally along retrolateral margin of tegulum in ventral view (Figs 4-5, 11-12); EP spine-shaped (Figs 4, 11, 13); RTA long, with broad base, arising medially from tibia, dorsal branch long and thin, slightly curved, ventral branch short and thick, with blunt tip (Figs 4-5, 11-12).

Female. Paratype ( SP–KKS–10– 0817): total length 9.70; prosoma 4.51 long, 3.02 wide; opisthosoma 5.22 long, 2.82 wide. Coloration: Dorsal shield of prosoma reddish brown. Legs yellowish brown, with dark dots randomly distributed, and especially on the setae and spine bases of coxa and femur. Opisthosoma color overall dark brown (Figs 6-7). Eye diameters and interdistances: AME 0.21, ALE 0.32, PME 0.23, PLE 0.31; AME–AME 0.21, AME–ALE 0.13, PME–PME 0.36, PME–PLE 0.44. MOA 0.82 long, anterior width 0.60, posterior width 0.83. Clypeus height 0.25. Leg measurements: I 15.47 (4.62, 1.83, 3.81, 3.91, 1.30), II 15.72 (4.66, 1.83, 3.98, 3.93, 1.32), III 14.78 (4.55, 1.77, 3.62, 3.65, 1.19), IV 15.31 (4.59, 1.85, 3.75, 3.82, 1.30). Leg formula: 2143. Leg spination: palps 131, 101, 2121, 2112; femur I–II 323, III 322, IV 331; patella I–IV 001; tibia I 2026, II–IV 2126; metatarsus I–II 2024, III 2026, IV 3036. Epigyne. Epigynal field wider than long, anterior margin rather indistinct, anterior longitudinal bands thin and short (Figs 8, 14); LLs wider at the median part, touching each other along the median line, anterior margin of LLs pointing 30° anterior-laterally; posterior margins of LLs with distinct posterior incisions; internal duct system visible through cuticle as elongated patches (Figs 8, 14); posterior end of first winding of internal duct system covered by LLs (Figs 9, 15).

Distribution.

Kuankuoshui Nature Reserve, Suiyang County, Guizhou Province, China.

Comments.

Males of Pseudopoda acuminata sp. n. could be included in the Pseudopoda martensi -group ( Jäger, 2001). Males of Pseudopoda martensi -group are characterized by: embolus sickle shaped, strongly flattened, and arising in a prolateral position on the tegulum, first bending in a retrolateral direction and then running in a distal direction; small embolic projection present. Females are difficult to distinguish ( Jäger 2001).