Belisana maogan, Tong, Yanfeng & Li, Shuqiang, 2009

Tong, Yanfeng & Li, Shuqiang, 2009, Six new cave-dwelling pholcid spiders (Araneae: Pholcidae) from Hainan Island, with two newly recorded genera from China, Zootaxa 1988, pp. 17-32 : 19

Belisana maogan sp. nov.

Figs 7–9 , 35–41

Type material: Holotype male, 3 males and 8 females paratypes, CHINA: Hainan Province, Baoting County, Maogan Town, Xian´anshilin (18°35.977´N, 109°25.440´E), 13 April 2005, Y. Song, X. Han, Y. Tong and G. Deng leg.

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

Diagnosis: The new species is similar to B. aninaj Huber, 2005 in the shapes of male proximal cheliceral apophyses, but can be distinguished by the shapes of procursus and the bulbal apophyses.

Description: Male (holotype). Total length 1.56 (1.72 with clypeus), carapace width 0.71. Leg 1: 10.04 (2.56+0.25+2.59+3.56+1.08), tibia 2: 1.87, tibia 3: 1.09, tibia 4: 1.71; tibia 1 L/d: 32. Habitus as in figs 7 and 8. Carapace yellow, with brown marks on posterior half; sternum yellowish; legs yellow, without darker rings; opisthosoma pale white, with some spots, distinct in lateral view. Ocular area not elevated, thoracic furrow absent; distance PME-PME 0.1; diameter PME 0.06; distance PME-ALE 0.01; AME absent. Clypeus unmodified. Sternum slightly wider than long (0.51/0.46). Chelicerae as in figs 38 and 39, with pair of frontal curved apophyses, tips 0.11 apart; with pair of upward-directed proximal apophyses. Palps as in figs 35, 36 and 37; trochanter with short retrolateral apophysis, femur with indistinct hump proximo-dorsally, procursus complicated distally, with ventral membranous flap, bulb with hooked apophysis and complicated embolus. Retrolateral trichobothrium of tibia 1 at 25%; legs without spines, vertical hairs, and curved hairs; tarsus 1 with about 15 indistinct pseudosegments distally.

Variation. Tibia 1 in other males (n = 3): 2.56, 2.59, 2.78. Distance between tips of distal cheliceral apophyses in other males: 0.09, 0.1, 0.11.

Females (paratypes). In general similar to male. Tibia 1 (n = 8): 2.12–2.47 (mean: 2.31). Epigynum simple and flat externally, with distinctive internal dark structures visible through cuticle ( Figs 9 , 40 ), pockets 0.04 apart. Dorsal view as in fig. 41.

Figures

FIGURES 1 – 23. Belisana desciscens sp. nov., 1 – 3; Belisana exian sp. nov., 4 – 6; Belisana maogan sp. nov., 7 – 9; Belisana yalong sp. nov., 10 – 12; Modisimus culicinus (Simon, 1893), 13 – 15; Pholcus exceptus sp. nov., 16 – 19; Holocneminus huangdi sp. nov., 20 – 23. (1, 4, 7, 10, 13, 16, 20, male habitus, dorsal view; 2, 5, 8, 11, 14, 17, 21, male habitus, lateral view; 3, 6, 9, 12, 15, 18, 23, female abdomen, ventral view; 19, 22, male sternum, ventral view.)

FIGURES 35 – 41. Belisana maogan sp. nov. 35 – 36. Male left palp, prolateral (35) and retrolateral (36) views; 37. Male left procursus, prolateral view; 38 – 39. Male chelicerae, frontal (38) and lateral (39) views; 40 – 41. Cleared epigynum, ventral (40) and dorsal (41) views. Scale lines: 0.1 mm.