Merizocera mainling Li sp. nov. Figures 22, 23, 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) (vs. thick and dark only at tip (Fig. 38A)), conductor lamina-like and shorter than embolus (Fig. 22B) (vs. conductor appendage-like and similar length as embolus (Fig. 38B)), presence of clypeus protrusion (Fig. 23C) (vs. absence of clypeal protrusion), absence of cymbial protrusion (vs. presence of cymbial protrusion (Fig. 38D)). The females can be distinguished by two pairs of twisted spermathecae (Fig. 23A) (vs. three pairs of short tubular spermathecae (Fig. 39A)).

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). Fovea shallow. Thoracic region distinctly elevated medially. Clypeus brownish, with large protrusion provided with long setae (Fig. 23C). Labium and sternum dark brown. Abdomen ovoid, dark brown (Fig. 23E). 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): 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). 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): dark brown, nearly trapezoidal patch. Endogyne (Fig. 23A) with two pairs of long, twisted, stalked spermathecae with blunt ends.

Distribution.

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