Orchestina yinggezui, 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 : 40-41

Orchestina yinggezui sp. nov.

Figures 1 I–J, 2E, 4E, 5H, 10A–B

Type material: Holotype female ( IZCAS Ar 19321), China: Hainan, Baisha, Yinggeling, Yinggezui Protection Station, 797 m a.s.l., 19°02.884´N, 109°33.529´E, 22 August 2010, leg. G. Zheng.

Etymology: The specific name is a noun in apposition taken from the type locality.

Diagnosis: The female resembles that of O. justini Saaristo, 2001 , but can be distinguished by the shape of the genitalia.

Description: Female. Total length 1.67, carapace length 0.73, carapace width 0.49, abdomen length 0.92. Habitus as in Figs 1 I, J. 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. 2E) longer than wide, with 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. 2E) distally not excavated, with serrula. Abdomen ovoid, with gray net-like pattern; pedicel tube short, unmodified, scuto-pedicel region unmodified. Legs without color pattern; femur IV thickened, much larger than femora I–III. Female genitalia: Ventral view ( Figs 4 E, 10A): without special external features, median part of the epigastric furrow with a vaulted, transverse opening, the internal genital structures shining through the integument. Dorsal view ( Figs 5 H, 10B): Medially a large sclerite, the anterior part of which is expanded; posterior to the sclerite a circular sclerite.

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 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.