Belisana bawangensis, Zhang, Feng & Peng, Yan-Qiu, 2011

Zhang, Feng & Peng, Yan-Qiu, 2011, Eleven new species of the genus Belisana Thorell (Araneae: Pholcidae) from South China, Zootaxa 2989, pp. 51-68 : 52-55

Belisana bawangensis sp. nov.

( Fig. 2 )

Type material. Holotype male, China: Hainan Province, Changjiang County (19°15'N, 109°02'E), Bawangling National Natural Reserve, 2 August 2007, Feng Zhang leg.; paratypes: 1Ƥ, same data as holotype; 8Ƥ, 133, 31 July 2007, Feng Zhang leg.; 13, 19 May 2009, Chao Zhang leg.

Etymology. The species name refers to the type locality.

Diagnosis. The new species strongly resembles B. huberi Tong & Li, 2008 , but can be distinguished by the male chelicerae apophyses, the procursus, the bulbal apophyses ( Figs 2 C–E) and the female internal genitalia ( Fig. 2 G).

Description. Male (holotype). Total length 1.69 (1.75 with clypeus), carapace length 0.59, width 0.75. Leg I: 11.87 (3.09 + 0.23 + 3.00 + 4.28 + 1.27), tibia II: 2.00, tibia III: 1.27, tibia IV: 1.82; tibia I L/d: 38. Habitus as in Fig. 2 A, carapace pale ochre-yellow with brown margins laterally; abdomen ochre-grey, with a few irregular spots dorsally. Ocular area not elevated, thoracic furrow absent. Clypeus unmodified. Sternum nearly as long as wide (0.44). Chelicerae as in Fig. 2 B, with pair of proximal rounded projections laterally, and distally a pair of long and curved apophyses with tips unmodified. Retrolateral trichobothrium of tibia I at 18%; legs yellowish without spines and curved hairs, with vertical hairs proximally on all metatarsi; tarsus I with 20 pseudosegments, quite distinct distally. Palps as in Figs 2 C–E, trochanter with short rounded retrolateral apophysis; femur with small proximodorsal hump; procursus complicated distally, with ventral membranous flap and dorsal spine; bulb with complicated embolus and hooked apophysis ( Fig. 2 D).

Female: In general similar to male. Tibia I in 9 females: 3.10–3.42 (mean 3.19). Epigynum simple externally, with brown swallow-shaped shade centrally ( Fig. 2 F). Dorsal view as in Fig. 2 G, with wavy sclerotized arch anteriorly, and a pair of irregular pore plates.

Variation. Body length in the other 14 males: 1.58–1.70. Tibia I in the other 14 males: 2.87–3.22. Distribution. Known only from the type locality.

Figures

FIGURE 2. Belisana bawangensis sp. nov. A. male, dorsal view; B. male chelicerae, frontal view; C. male left procursus, prolateral view; D. male left palp, prolateral view; E. same, retrolateral view; F. epigynum, ventral view; G. vulva, dorsal view. Scale lines: A = 0.2 mm; B – G = 0.1 mm.