Sinoneta notabilis, Lin & Li, 2010

Lin, Yucheng & Li, Shuqiang, 2010, Leptonetid spiders from caves of the Yunnan-Guizhou Plateau, China (Araneae: Leptonetidae) 2587, Zootaxa 2587 (1), pp. 1-93 : 83-87

publication ID	https://doi.org/ 10.11646/zootaxa.2587.1.1
persistent identifier	https://treatment.plazi.org/id/A76E6115-FFD0-FF90-FF49-83DFA5CFFE56
treatment provided by	Felipe
scientific name	Sinoneta notabilis
status	sp. nov.

Treatment

Sinoneta notabilis sp. nov.

Figs 55–57 View FIGURE 55 View FIGURE 56 View FIGURE 57 , 61 View FIGURE 61

Type material: Holotype: male ( IZCAS), Hebiandong Cave , Kaikou Town, Duyun City [26°00´N, 107°12´E, Guizhou, China], 8 May 2006, Y.C. Lin leg. GoogleMaps Paratypes: 1 male and 1 female, same data as holotype ( IZCAS) GoogleMaps .

Etymology. The specific name is derived from the Latin word “ notabilis ” (= remarkable, striking), in reference to the shape of tibial spur I on the male pedipalp. Gender is feminine.

Diagnosis. Sinoneta notabilis sp. nov. is similar to S. sexdigiti sp. nov., but may be distinguished by the presence of 4 eyespots, PME absent, the trifurcated tibial spine I, the five dents on median apophysis distally, the distinctly protruded genital area and the contiguous spermathecae.

Description. Holotype male. Total length 1.80. Prosoma 0.78 long, 0.65 wide. Sternum 0.48 long, 0.50 wide. Opisthosoma 0.90 long, 0.94 wide. Dorsal shield of prosoma yellow, long ovoid, two stiff setae on posterior area of ocular area, one at thoracic center. Thoracic median groove fuscous, needle-shaped. Cervical groove and radial furrows indistinct. Clypeus 0.17 high, slightly sloped anteriorly, short setae covered clypeal area. Four eyes reduced into white eyespots, PME absolutely absent. Eye sizes: ALE 0.05, PLE 0.04, PLE- PLE 0.06, AER 0.11, PER 0.15. ALE and PLE contiguous. Chelicerae yellow, fang furrow with 9 promarginal and 6 retromarginal teeth. Endites, labium, sternum and legs yellow. Leg measurements: I 6.52(1.76, 0.28, 1.90, 1.52, 1.06); II 5.58(1.54, 0.28, 1.56, 1.28, 0.92); III 4.70(1.34, 0.26, 1.24, 1.12, 0.74); IV 6.03(1.64, 0.28, 1.70, 1.48, 0.93). Leg formula: I-IV-II-III. Densely setae on femur I dorsally. A row of thin hairs along tibia I retrolaterally. All tibiae with 3 trichobothria. A cluster of serrated hairs-comb on ventral base of metatarsi II and III respectively. Opisthosoma pale, ovoid, lacking pigmental speckles, covered with grey long hairs.

Pedipalpal femur with long hairs, but spineless. One dorsal spine at patella distally. Pedipalpal tibia subequal to pedipalpal patella in length, modified by 3 dorsal trichobothria, 5 retrolateral strong spurs and a long seta, of them tibial spur I largest and trifurcated distally, located on the swollen base of pedipalpal tibia. Pedipalpal tarsus rugose, contracted mesially, attaching an earlobe-shaped process retrolaterally, 2 long setae distally. Pedipalpal bulb ovoid. Prolateral lobe tongue-shaped. Conductor longer than embolus, slightly wrinkled and membranous. Median apophysis developed, distinctly sclerotized, divided into 5 short fingers distally.

Female. Similar to male in general features, somatic coloration and body size, but legs shorter. Total length 1.82. Prosoma 0.74 long, 0.61 wide. Sternum 0.46 long, 0.44 wide. Opisthosoma 0.96 long, 0.78 wide. Clypeus 0.15 high. Four white eyespots. Eye sizes: ALE 0.05, PLE 0.04; PLE-PLE 0.06-0.07; AER 0.09-0.10, PER 0.12-0.13. Leg measurements: I 5.36(1.46, 0.26, 1.56, 1.18, 0.90); II 4.55(1.28, 0.26, 1.25, 0.98, 0.78); III 3.90(1.12, 0.24, 1.02, 0.88, 0.64); IV 5.02(1.44, 0.24, 1.40, 1.14, 0.80). Leg formula: I-IV-II-III. Except less setae on femur I, the chaetotaxy of the rest similar to male.

Genital area distinctly protruded, covered with densely long hairs. Internal genitalia consisting of a pair of twisty spermathecae and sperm ducts. Spermathecae contacted distally, sclerotized distally stronger than proximally. Sperm ducts with modified short hairs. Atrium broad, antromargin “W”-shaped, also with short hairs, postmargin smooth.

Distribution. Known only from type locality.