Orchestina zhengi, Tong, Yanfeng & Li, Shuqiang, 2011

Tong, Yanfeng & Li, Shuqiang, 2011, Six new Orchestina species from Hainan Island, China (Araneae, Oonopidae), Zootaxa 3061, pp. 36-52 : 41

Orchestina zhengi sp. nov.

Figures 1 K–M, 2F, 4F, 5I –J, 10C–E

Type material: Holotype female ( IZCAS Ar 19322), China: Hainan, Baisha, Yinggeling, Yinggezui Protection Station, 663 m a.s.l., 19°03.049´N, 109°33.751´E, 25 August 2010, leg. G. Zheng. 1 female paratype ( IZCAS Ar 19323), same data as holotype, 678 m a.s.l., 19°03.047´N, 109°33.782´E, 21 August 2010, leg. G. Zheng.

Etymology: The specific name is a patronym in honor of Guo Zheng, who collected the type specimens.

Diagnosis: The new species can be distinguished from congeners by the shape of the female genitalia, the color pattern of the carapace and abdomen and the dark brown patch on the sternum.

Description: Female. Total length 1.63, carapace length 0.76, carapace width 0.57, abdomen length 0.82. Habitus as in Figs 1 K–M. Color in alcohol: Carapace yellow, legs and palp pale yellow. Cephalothorax: Carapace oval, surface smooth, with net-shaped pattern, pars cephalica slightly elevated in lateral view, with rounded posterolateral corners. Clypeus similar to O. aureola sp. nov.; ALE separated from edge of carapace by their diameter or more; setae present, needle-like. Eyes similar to O. aureola sp. nov. Sternum (Fig. 2F) longer than wide, with dark brown patches, without radial furrows between coxae, surface smooth; setae sparse, needle-like, evenly scattered, without hair tufts. Mouthparts: Chelicerae straight, anterior face unmodified; labium rectangular, not fused to sternum, anterior margin not indented at middle; endites ( Fig. 10 C) distally not excavated, with serrula. Abdomen ovoid, with gray spot-like pattern; pedicel tube short, unmodified, scutopedicel region unmodified. Legs without color pattern; femur IV thickened, much larger than femora I-III. Female genitalia: Ventral view: Anterior of the epigastric furrow a transverse cuticle fold (arrow in Figs 4 F, 5I, 10D). Dorsal view ( Figs 5 J, 10E): Medially a cylinder-shaped sclerite; posterior to the sclerite a massive dorsal plate.

Male: Unknown.

Distribution: Known only from Hainan Island.

Figures

FIGURE 4. Female abdomen, ventral view. A. Orchestina aureola sp. nov.; B. Orchestina clavulata sp. nov.; C. Orchestina tubulata sp. nov.; D. Orchestina truncatula sp. nov.; E. Orchestina yinggezui sp. nov.; F. Orchestina zhengi sp. nov. (black arrow shows the transverse cuticle fold). Scales: 0.2 mm.

FIGURE 1. A – H. Male, dorsal and lateral views; I – M. Female, dorsal and lateral views. A – B. Orchestina aureola sp. nov.; C – D. Orchestina clavulata sp. nov.; E – F. Orchestina truncatula sp. nov.; G – H. Orchestina tubulata sp. nov.; I – J. Orchestina yinggezui sp. nov.; K – M. Orchestina zhengi sp. nov. Scales: 0.2 mm.

FIGURE 10. A – B. Orchestina yinggezui sp. nov.; C – E. Orchestina zhengi sp. nov. A, D. Female genitalia, ventral view (black arrow shows the transverse cuticle fold); B, E. Female genitalia, dorsal view; C. Female endites, ventral view (black arrow shows serrula). Abbreviations: Csc, circular sclerite; Dp, dorsal plate; Sc, sclerite. Scales: 0.05 mm.

FIGURE 5. A – E, G, H, J. Female genitalia, dorsal view. F, I. Female genitalia, ventral view. A – C. Orchestina aureola sp. nov.; D. Orchestina clavulata sp. nov.; E. Orchestina truncatula sp. nov.; F – G. Orchestina tubulata sp. nov.; H. Orchestina yinggezui sp. nov.; I – J. Orchestina zhengi sp. nov. (black arrow shows the transverse cuticle fold); Scales: 0.05 mm.