Mimetus lamellaris, 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 : 128-131

Taxon classification Animalia Araneae Mimetidae

Mimetus lamellaris sp. n. Figs 5, 6

Type material.

Holotype ♂, China, Guizhou: Yanhe County, Daheba Township, Mayanhe National Nature Reserve 28.65839°N, 108.26033°E, 364m, 28 July 2014, Xianjin Peng, Cheng Wang, Bing Zhou, Ping Liu, Yi Huang and Mingyong Liao leg.

Etymology.

The specific name comes from the Latin word lamellaris, meaning flaky and referring to the flaky vexillum on the cymbial tip; adjective.

Diagnosis.

The new species can be distinguished from all known congeneric species by: cymbial tip with several slender long macrosetae (Fig. 5 B–C); cymbium boat-shaped, length/width ratio about 3/1 in retrolateral view (Figs 5C, 6B); the angle between the basal and apical of embolus about 110° (Figs 5B, 6A); vexillum about 1/2 length of cymbium in retrolateral view (Figs 5 B–C, 6 B–C); apical part of paracymbium broaden to rotund, with two hornlike outgrowths (Figs 5C, 6B).

Description.

Male: Total length 3.05. Prosoma 1.65 long, 1.30 wide. Opisthosoma 1.40 long, 1.13 wide. Clypeus 0.20 high. Carapace (Fig. 5A) yellow, long oval, widest at coxae II and III, with a longitudinal brown patch medially, posterior partion reddish brown. Fovea circular, deep, surrounding area reddish brown. AER recurved, PER nearly straight, ALE and PLE continuous. Eye sizes and interdistances: AME 0.13, ALE 0.08, PME 0.11, PLE 0.05, AME–AME 0.06, ALE–AME 0.07, PME–PME 0.06, PME–PLE 0.13. MOA anterior width 0.34, posterior 0.28, length 0.35. Chelicerae red dish brown, with 7 promarginal peg setae and 2 retromarginal teeth (Fig. 6C), distal area with long hairs. Endites light yellow, longer than wide. Labium reddish brown, wider than long. Sternum yellow, long oval, each side with two brown patches, margins with long scopulae, centrally glabrous. Legs light yellow, spiniferous, with reddish brown patches equidistributed. Length of legs: I 10.35 (2.73, 3.52, 2.60, 1.50), II 7.78 (2.43, 2.72, 12.6, 1.01), III 4.53 (1.10, 1.53, 1.00, 0.90), IV 5.66 (1.12, 2.03, 1.11, 0.60). Leg formula: 1243. Dorsum of opisthosoma (Fig. 5A) light yellow, long oval, with long macrosetae and brown patches. Venter gray white, with white patches in middle.

Male palp (Figs 5 B–C, 6 A–B): tibia long and thin, distally swollen, with several long macrosetae. Cymbium boat-shaped, widest in middle in prolateral view, with slender macrosetae on the tip. Vexillum flaky, about 1/2 length of cymbium in retrolateral view, visible in prolateral view. Distal of paracymbium broaden to rotund, with two hornlike outgrowths. Basal division of the bulb visible, distal division of the bulb rolls up as sulciform to protect embolus. Embolus hook-shaped, and the angle between its basal and apical about 110°.

Female. Unknown.

Distribution.

China (Guizhou).