Spartaeus tengchongensis, Yang & Liu & Liu & Peng, 2017

Yang, Su-Fang, Liu, Wang, Liu, Ping & Peng, Xian-Jin, 2017, Five new species of Spartaeus Thorell, 1891 from China (Araneae: Salticidae), Zootaxa 4303 (3), pp. 379-394 : 386-389

Spartaeus tengchongensis sp. nov.

Figs 7–8, 11C

Type material. Holotype: male, CHINA, Yunnan, Tengchong County, Jietou Township, Chehua Village , 25.3281°N, 98.6982°E, 1652 m, 18 May 2006, Shui-zhong Duan (YHY05). Paratypes: CHINA, Yunnan: 3 females, same data as holotype (YHY05A) ; 1 female, Fugong County, S. bank of Yimazi river , near Shidi Village, S. 47 k m, 356° N of Fugong, 26.9582°N, 98.8617°E, 1220 m, 27 April 2004, C. Griswold & D.H. Kavanaugh (CGY16) ; 3 females, Longyang County, Bawan Township , Nankang Yakou just N of pass, 24.8318°N, 98.7647°E, 2180 m, 22 May 2005, D.H. Kavanaugh, C. Griswold & Da-zhi Dong (2005-020) ; 1 female, Fugong County, Yejiadi, 27.0504°N, 98.7733°E, 2307 m, 10 May 2004, Heng-mei Yan (20040510).

Etymology. The specific name refers to the type locality, Tengchong County; adjective.

Diagnosis. The new species is similar to S. zhangi Peng & Li, 2002 described from Khammouan, Laos (see Logunov & Azarkina 2008, figs 95–106), but can be distinguished by: in ventral view, intermediate tibial apophysis longest, almost as large as retroateral tibial apophysis (Figs 7B, 8A), while slightly shorter and much thinner than retroateral tibial apophysis in S. zhangi ( Logunov & Azarkina 2008, fig. 96); posterior margin of cymbium with a large central incision (Figs 7E, 8D), not present in S. zhangi ( Logunov & Azarkina 2008, fig. 98); the spermathecae large, almost spherical, touching each other medially (Figs 7F, 8E), while kidney-shaped, slightly separate in S. zhangi ( Logunov & Azarkina 2008, fig. 99).

Description. Male (holotype): Total length 6.56. Prosoma 2.76 long, 2.30 wide. Opisthosoma 3.79 long, 1.75 wide. Clypeus height 0.15. Carapace (Fig. 7A) brown, margin and eye surroundings blackish brown, sparsely covered with white and brown hairs. Fovea brown and longitudinal; cervical and radial grooves dark brown. Eye diameters and interdistances: AME 0.50, ALE 0.40, PME 0.25, PLE 0.30, AERW 2.20, PERW 1.85, EL 1.41. Chelicerae dark brown, with 6 promarginal and 7 retromarginal bifurcate denticles ( Fig. 8 C). Clypeus dark brown, covered with long brown hairs. Endites and labium reddish brown with light apex, sparsely clothed by fine hairs. Sternum light brown with dark brown margin, sparsely clothed by brown hairs. Legs long and thin, yellowish brown, bearing long and strong spines. Leg spination: tibiae I and II with 5 and 4 pairs of long spines respectively, metatarsi I and II with 4 and 3 pairs of spines respectively. Measurements of legs: I 13.10 (3.60, 5.00, 3.10, 1.40), II 9.00 (2.60, 3.30, 2.20, 0.90), III 9.40 (2.30, 3.50, 2.30, 1.30), IV 12.30 (3.20, 4.30, 3.50, 1.30). Leg formula: I, IV, III, II. Abdomen long oval. Dorsum (Fig. 7A) dark brown with light brown median area, patch dictinct, each side with a light brown longitudinal band. Spinnerets dark brown, clothed by brown hairs. Palp (Figs 7B–C, 8A–B): embolus thin and short, horn-like, its base covered with a long oval membranous patch; tegulum oval; tegular apophysis finger-like in retrolateral view (Figs 7C, 8B); conductor wide and long, lamellar and membranous; ventral tibial apophysis flat and triangular in ventral view; intermediate tibial apophysis largest, almost rectangular in retrolateral view; retrolateral tibial apophysis short and blunt in retrolateral view.

Female (paratype): Total length 5.05. Prosoma 2.25 long, 3.25 wide. Opisthosoma 2.80 long, 2.25 wide. Clypeus height 0.10. Carapace (Fig. 7D) dark brown, sides light brown with light patterns, sparsely covered with brown hairs; ocular area brown, eyes with black surroundings except AME, fringed by long white hairs. Fovea long, longitudinal and dark brown; cervical and radial groove light brown. Eye diameters and interdistances: AME 0.65, ALE 0.37, PME 0.27, PLE 0.30, AERW 2.15, PERW 1.95, EL 1.25. Chelicerae strong and dark brown, with 5 promarginal teeth and 7 retromarginal denticles ( Fig. 8 F). Clypeus brown, covered with long blackish brown hairs. Endite and labium reddish brown with dark brown margin. Sternum light yellow with light brown margin. Legs long and thin, yellowish brown. Leg spinnation: tibiae I and II with 7 and 4 pairs of ventral spines respectively, metatarsi I and II with 3 pairs of spines. Measurements of legs: I 8.00 (2.50, 3.50, 1.25, 0.75), II 6.75 (2.00, 2.85, 1.25, 0.65), III 6.40 (2.00, 2.50, 1.25, 0.65), IV 9.15 (2.50, 3.25, 2.50, 0.90). Leg formula: IV, I, II, III. Abdomen long oval. Dorsum (Fig. 7D) grayish brown, median area with light stripe, covered with gray and white fine hairs; venter grayish black. Spinnerets dark brown, clothed by gray hairs. Epigyne (Figs 7E–F, 8D–E): copulatory openings slit-shaped in ventral view, posteriorly located; copulatory ducts thick and short; spermathecae large, almost spherical; fertilization ducts short.

Distribution. Known only from Yunnan, China ( Fig. 11 C).

Figures

FIGURE 8. Spartaeus tengchongensis sp. nov. A left male palp, dorsal view; B same, retrolateral view; C cheliceral teeth of male; D epigyne, ventral view; E vulva, dorsal view; F cheliceral teeth of female. Scale bars: A – F 0.10.

FIGURE 11. Distribution records. A ▲ S. forcipiformis sp. nov.; B ▲ S. serratus sp. nov., • S. pinniformis sp. nov.; C ▲ S. tengchongensis sp. nov.; D ▲ S. triapiculus sp. nov.