Belisana erromena, 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 : 58-62

Belisana erromena sp. nov.

( Fig. 7 )

Type material. Holotype male, China: Yunnan Province, Huize County (26°25'N, 103°16'E), Jinzhongshan Park, 25 July 2004, Zizhong Yang leg.; paratypes: 6Ƥ,13, same data as holotype.

Etymology. The specific name is derived from the Greek word “ erromena ”, meaning brawny, and refers to the shape of the male palp.

Diagnosis. The new species is somewhat similar to B. banlakwo Huber, 2005 , but can be distinguished by the shapes of the marks on the male carapace, the procursus ( Figs 7 D–E) and the position and distance between the female epigynal pocket ( Figs 7 F–G).

Description. Male (holotype). Total length 2.00 (2.25 with clypeus), carapace length 0.83, width 0.72. Leg I: 7.25 (1.84 + 0.26 + 2.00 + 2.20 + 0.95), tibia II: 1.21, tibia III: 0.83, tibia IV: 1.42; tibia I L/d: 20. Habitus as in Fig. 7 A, carapace pale brown, with brown marks medially connecting to ocular area; abdomen ochre-grey, without marks. Ocular area not elevated, thoracic furrow absent. Clypeus unmodified. Sternum slightly wider than long (0.57/0.47). Chelicerae as in Fig. 7 B, with pair of proximal small rounded projections laterally, and distally a pair of curved apophyses. Retrolateral trichobothrium of tibia I at 45%; legs brown without spines and curved hairs, with vertical hairs proximally on all metatarsi; tarsus I with 10 pseudosegments, quite distinct distally. Palps as in Figs 7 C–E, trochanter with short retrolateral apophysis; femur with distinct hump proximo-dorsally; procursus complicated distally, with brush-shaped processes and absent dorsal spine; bulb with broad hooked apophysis and embolus with transparent spine ( Fig. 7 D).

Female: In general similar to male. Tibia I in 6 females: 1.74–2.04 (mean 1.88). Epigynum simple externally, with pair of pockets medially ( Fig. 7 F). Dorsal view as in Fig. 7 G, with pair of triangular pore plates.

Variation. Body length in the other males: 2.12. Tibia I in the other males: 2.05.

Distribution. Known only from the type locality.

Figures

FIGURE 7. Belisana erromena sp. nov. A. male, dorsal view; B. male chelicerae, frontal view; C. male bulb with bulbal apophysis and embolus, retrolateral 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.