Merizocera mainling Li, 2020

Chang, Wan-Jin, Yao, Zhiyuan & Li, Shuqiang, 2020, Twenty-eight new species of the spider genus Merizocera Fage, 1912 (Araneae, Psilodercidae) from South and Southeast Asia, ZooKeys 961, pp. 41-118 : 41

publication ID	https://dx.doi.org/10.3897/zookeys.961.53058
publication LSID	lsid:zoobank.org:pub:B5627BFE-56A2-42B3-B3A5-96BAE07724F4
persistent identifier	https://treatment.plazi.org/id/598BF801-F7D7-42BB-9219-1A2838068922
taxon LSID	lsid:zoobank.org:act:598BF801-F7D7-42BB-9219-1A2838068922
treatment provided by	ZooKeys by Pensoft
scientific name	Merizocera mainling Li
status	sp. nov.

Treatment

Merizocera mainling Li sp. nov. Figures 22 View Figure 22 , 23 View Figure 23 , 53 View Figure 53

Merizocera sp. 46: Li and Li 2018 (molecular data).

Type material.

Holotype: male (IZCAS), northern Mainling County (29°13.31'N, 94°13.31'E, elevation 3050 m), Nyingchi, Tibet, China, 13 August 2013, L. Lin leg. Paratypes: 1 male and 1 female (IZCAS), same data as holotype.

Etymology.

The specific name refers to the type locality; noun in apposition.

Diagnosis.

Males resemble M. tanintharyi sp. nov. but can be distinguished by a thin darkened embolus (Fig. 22B View Figure 22 ) (vs. thick and dark only at tip (Fig. 38A View Figure 38 )), conductor lamina-like and shorter than embolus (Fig. 22B View Figure 22 ) (vs. conductor appendage-like and similar length as embolus (Fig. 38B View Figure 38 )), presence of clypeus protrusion (Fig. 23C View Figure 23 ) (vs. absence of clypeal protrusion), absence of cymbial protrusion (vs. presence of cymbial protrusion (Fig. 38D View Figure 38 )). The females can be distinguished by two pairs of twisted spermathecae (Fig. 23A View Figure 23 ) (vs. three pairs of short tubular spermathecae (Fig. 39A View Figure 39 )).

Description.

Male (holotype). Total length 1.72; carapace 0.84 long, 0.65 wide; abdomen 0.82 long, 0.66 wide. Carapace circular, brownish, with dark brown radiating marks (Fig. 23C View Figure 23 ). Fovea shallow. Thoracic region distinctly elevated medially. Clypeus brownish, with large protrusion provided with long setae (Fig. 23C View Figure 23 ). Labium and sternum dark brown. Abdomen ovoid, dark brown (Fig. 23E View Figure 23 ). Legs light brown; measurements: I 6.34 (1.70, 0.26, 1.92, 1.68, 0.78), II missing, III 3.74 (1.05, 0.22, 1.05, 0.93, 0.49), IV 5.10 (1.36, 0.24, 1.53, 1.27, 0.70). Palp (Fig. 22A-D View Figure 22 ): femur slender, thrice longer than patella; patella not swollen; tibia slightly swollen proximally; cymbium without dorsal protrusion, 1/3 femur length; bulb pale yellow, pyriform with embolus and conductor arising distally; embolus thin and dark, arising laterally, longer than the width of bulb; conductor lamina-like, half the width of bulb.

Female (paratype). General features and colouration similar to those of male (Fig. 23D, E View Figure 23 ). Measurements: total length 1.76; carapace 0.79 long, 0.65 wide; abdomen 0.94 long, 0.82 wide. Leg measurements: I 4.48 (1.18, 0.25, 1.38, 1.04, 0.63), II 3.70 (1.00, 0.24, 1.08, 0.85, 0.53), III 3.19 (0.89, 0.23, 0.87, 0.75, 0.45), IV 4.38 (1.15, 0.23, 1.33, 1.04, 0.63). Epigastric area (Fig. 23B View Figure 23 ): dark brown, nearly trapezoidal patch. Endogyne (Fig. 23A View Figure 23 ) with two pairs of long, twisted, stalked spermathecae with blunt ends.

Distribution.

Known only from the type locality (China; Fig. 53 View Figure 53 ).