Mimetus wangi, Zeng, Chen, Wang, Cheng & Peng, Xian-Jin, 2016

Zeng, Chen, Wang, Cheng & Peng, Xian-Jin, 2016, Three spider species of the genus Mimetus Hentz, 1832 (Araneae, Mimetidae) from China, ZooKeys 626, pp. 125-135 : 131-134

Taxon classification Animalia Araneae Mimetidae

Mimetus wangi sp. n. Figs 7, 8, 9, 10

Type material.

Holotype ♂, China, Yunnan: Gaoligong Mountains, Dulongjiang Township, Xianjiudang Village, 27.93682°N, 98.3260°E, 1634m, 5 April 2004, Guo Tang leg. Paratypes: 5♀, same data as holotype.

Etymology.

The specific name is a patronym in honor of Professor Jiafu Wang, a well known spider taxonomist in China; noun.

Diagnosis.

The new species can be distinguished from all known congeneric species by: the dorsum of the opisthosoma with a pair of distinct outgrowths (Fig. 7A); the ratio of cymbium length/width about 2/1 in retrolateral view (Figs 7C, 8B); spermathecae kidney shaped (Figs 9C, 10C) and contiguous (Figs 9B, 10B); the width of spermathecae slightly narrower than basal plate (Figs 9B, 10B).

Description.

Male: Total length 3.34. Prosoma 1.50 long, 1.20 wide. Opisthosoma 1.84 long, 1.40 wide. Clypeus 0.05 height. Carapace (Fig. 7A) yellow brown, long oval, widest at coxae II and III, with longitudinal brown patches at median area and three brown patches on both sides of the lateral margins. Fovea circular. AER slightly recurved, PER nearly straight, ALE and PLE contiguous. Eye sizes and interdistances: AME 0.13, ALE 0.08, PME 0.10, PLE 0.06, AME–AME 0.08, ALE–AME 0.05, PME–PME 0.05, PME–PLE 0.13, MOA anterior width 0.28, posterior width 0.25, length 0.31. Chelicerae yellow, with 7 promarginal peg setae and 2 retromarginal teeth. Endites light yellow, longer than wide. Labium light yellow, longer than wide. Sternum pear-shaped, glabrous, colored as labium except margin with few macrose tae. Legs slim, spiniferous, with brown patches. Length of legs: I 11.23 (3.31, 3.82, 2.80, 1.30), II 9.00(2.48, 2.91, 2.40, 1.21), III 4.58 (1.01, 1.68, 1.00, 0.0.88), IV 6.05 (1.90, 2.00, 1.40, 0.75). Leg formula: 1243. Opisthosoma (Fig. 7A) long oval, filled with small black spots and few white patches, anterior area with few macrosetae, middle portion widest, with two outgrowths in both sides, posterior portion sloping, with five transverse black stripes. Venter with three brown patches, median area grey, glabrous, with white spots on both sides.

Male palp (Figs 7 C–D, 8 B–C): tibia slim, with several macrosetae. Cymbial length/width ratio about 2/1 in retrolateral view, distal end extending to vexillum, shovel obvious, with dense long setae. Sperm duct nearly horizontal. Embolus with a membrane covering its terminal 2/3 portion in prolateral view. Paracymbium massive.

Female. Total length 3.65. Prosoma 1.55 long, 1.10 wide. Opisthosoma 1.95 long, 2.05 wide. Clypeus 0.10 high. Carapace (Fig. 9A) yellowish brown, long oval. AER recurved, PER slightly procurved. ALE and PLE continuous. Eye sizes and interdistances: AER 0.10, ALE 0.13, PME 0.13, PLE 0.15, AME–AME 0.04, AME–ALE 0.06, PME–PME 0.05, PME–PLE 0.10. MOA anterior width 0.28, posterior width 0.21, length 0.31. Chelicerae, endites and labium coloured as in male, labium slightly wider than long. Chelicerae with 8 promarginal peg setae and 2 retromarginal teeth. Sternum similar to male except for lightly colored. Leg patches and spines similar to male.

Length of legs: I 12.92 (3.51, 4.30, 3.60, 1.50), II 9.55 (2.87, 2.91, 2.38, 1.38), III 5.93 (1.82, 1.91, 1.21, 1.00), IV 6.75 (2.10, 2.30, 1.35, 1.00). Dorsum of opisthosoma (Fig. 9A) similar to male, except for fewer black spots and more white spots, and between the two outgrowths is a transverse black wide stripe. Venter similar to male except three patches darker.

Epigyne (Figs 9 B–C, 10 B–C) slightly longer than wide, with a yellowish brown labiate outgrowth at the bottom of the base plate, copulatory openings visible, close to epigastric furrow. Spermathecae kidney shaped, contiguous, slightly narrower than basal plate. Basal plate scalloped. Copulatory ducts indistinct in dorsal view.

Distribution.

China (Yunnan).