Leclercera sidai Li et Li

Xu, Mingjie, Li, Fengyuan & Li, Shuqiang, 2018, Four new species of the spider genus Leclercera Deeleman-Reinhold (Araneae, Ochyroceratidae) from Nepal, Zootaxa 4461 (4), pp. 558-572: 561

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Leclercera sidai Li et Li

sp. nov.

Leclercera sidai Li et Li  sp. nov.

Figs 4–5View FIGURE 4View FIGURE 5, 8 View Figure

Material examined. Holotype: Male (IZCAS-Ar 34333), Nepal, Mechi District, Mai Khola , 26°53’00”N, 87°55’41”E, altitude 470 m, 24 November 2016, Q. Y. Zhao leg. Paratype: 1 female, same data as holotype (IZCAS-Ar 34334).GoogleMaps 

Etymology. The specific name is from the Chinese pinyin for ribbon (Si Dai), in reference to the shape of conductor; noun in apposition.

Diagnosis. This species is easily recognized from all other known species by the slender, upright conductor and embolus ( Fig. 4A View Figure ), and by the retrolateral apophysis on palpal tibia in males ( Figs 4B–D View Figure ). Females of this new species are similar to those of L. mulcatus  comb. n. in having one spermathecae on arched, tubiform stalks on each side ( Fig. 5A View Figure ), but can be distinguished by a flattened base of the spermathecae, compared with a bulging base in L. mulcatus  .

Description. Male (holotype): Measurements: Total length: 4.75; carapace length: 1.02, width: 1.05; abdomen length: 3.44, width: 0.92. Legs brown; measurements: II and IV missing, I 19.2 (5.64, 0.36, 5.51, 6.09, 1.60), III 8.55 (2.56, 0.25, 2.44, 2.34, 0.96). Carapace sub-circular, yellow, with one broad middle band and two narrow marginal bands ( Fig. 5C View Figure ). Anterior margin of the thoracic region distinctly elevated. Six eyes. Chelicerae brown. Cheliceral promargin with lamina and one tooth, retromargin with two small teeth ( Fig. 8B View Figure ), the posterior surface of fang with 22 small denticles. Fovea shallow. Labium brown. Sternum brown. Abdomen slender with complex patterns dorsally. Palp ( Figs 4A–D View Figure ): femur slender; tibia with apophysis retrolaterally; bulb pale yellow, ovate ( Fig. 4A View Figure ); conductor arising distally from bulb, slender, sigmoid, with swollen area basally; embolus arising distally from bulb, long, sigmoid. Embolus and conductor slightly separated (the distance is less than semidiameter of bulb).

Female: Measurements: total length: 2.56; carapace length: 0.85, width: 0.89; abdomen length: 1.58, width: 0.70. Leg measurements: IV missing, I 13.49 (3.59, 0.32, 3.91, 4.17, 1.50), II 9.59 (2.56, 0.28, 2.84, 2.76, 1.15), III 6.62 (1.78, 0.26, 1.88, 1.82, 0.88). Similar to male in coloration and general features ( Figs 5E–F View Figure ), but smaller. Abdomen globular ( Figs 5E–F View Figure ). External genital area simple. Internal genitalia with one pair of spermathecae on long and transparent stalks ( Fig. 5A View Figure ).

Natural History. Collected in leaf litter of broad leaved forest, with very high local humidity, at an altitude of 470 m.

Distribution. Known only from the type locality ( Fig. 9 View Figure ).