Belisana bubeng, Zhu & Li, 2021

Zhu, Wenhui & Li, Shuqiang, 2021, Two new spiders of the genus Belisana (Araneae: Pholcidae) from Xishuangbanna Rainforest, China, Zootaxa 4933 (4), pp. 557-566 : 558-561

publication ID	https://doi.org/ 10.11646/zootaxa.4933.4.6
publication LSID	lsid:zoobank.org:pub:D714E5D4-BE5A-49D3-AED5-9A0B38413959
DOI	https://doi.org/10.5281/zenodo.4556720
persistent identifier	https://treatment.plazi.org/id/E12C0973-F540-FFED-2C89-FA27FCD3FBA9
treatment provided by	Plazi
scientific name	Belisana bubeng
status	sp. nov.

Treatment

Belisana bubeng View in CoL sp. nov.

Figs 1–2 View FIGURE 1 View FIGURE 2 , 5 View FIGURE 5 A–D

Type material. Holotype: Male ( IZCAS Ar41821), seasonal rainforest (21°36’40.40”N, 101°34’25.60”E, elevation 855 ± 30 m), Bubeng Village , Mengla County, Xishuangbanna, Yunnan, China, 11 July 2012, Zhigang Chen & Qingyuan Zhao leg. GoogleMaps Paratypes: 2 females ( IZCAS Ar41822–41823), same data as holotype GoogleMaps .

Etymology. The specific name refers to the type locality and is a noun in apposition.

Diagnosis. This species resembles B. cas Yao & Li, 2018 (see Yao et al. 2018: 250, figs 7–8, 11D, 12D) by having similar external female genitalia ( Figs 2A View FIGURE 2 , 5A View FIGURE 5 ) but females can be distinguished by the presence of a short scape (arrow s in Figs 2B View FIGURE 2 , 5B View FIGURE 5 ) and narrow pore plates (arrow pp in Figs 2B View FIGURE 2 , 5B View FIGURE 5 ) and by the absence of serrated sclerites on vulva. Males can be distinguished by the presence of a bifid subdisto-prolateral sclerite (arrow 1 in Figs 1C View FIGURE 1 , 5C View FIGURE 5 ), nearly trapezoidal subdisto-ventral sclerite (arrow 2 in Figs 1C View FIGURE 1 , 5C View FIGURE 5 ), curved subdisto-prolateral sclerite (arrow 3 in Figs 1C View FIGURE 1 , 5C View FIGURE 5 ), fan-shaped disto-retrolateral membranous lamella (arrow 1 in Figs 1D View FIGURE 1 , 5D View FIGURE 5 ), small disto-retrolateral sclerite (arrow 2 in Figs 1D View FIGURE 1 , 5D View FIGURE 5 ) on the procursus, longer male cheliceral distal apophyses (arrow da in Fig. 2B View FIGURE 2 ), and by the presence of a long distal spine on the embolus (arrow in Fig. 2C View FIGURE 2 ).

Description. Male (holotype, IZCAS Ar41821): Total length 1.62 (1.70 with clypeus), carapace 0.79 long, 0.66 wide, opisthosoma 0.91 long, 0.69 wide. Leg I: – (1.78 + 0.28 + – + – + –), leg II: – (1.64 + 0.25 + 1.60 + 2.59 + –), leg III: 4.50 (1.34 + 0.16 + 1.09 + 1.44 + 0.47), femur IV: 1.68, other segments missing. Distance PME-PME 0.23, diameter PME 0.06, distance PME-ALE 0.07, AME absent. Sternum approximately as wide as long (0.50). Habitus as in Figs 2 View FIGURE 2 E–F. Carapace pale, with brown lateral margins and small, brown median marks; sternum pale, without marks. Legs pale, without darker rings. Opisthosoma pale, without spots. Ocular area not elevated. Thoracic furrow absent. Clypeus unmodified. Chelicerae ( Fig. 2D View FIGURE 2 ) with pair of small proximo-lateral apophyses and pair of long, curved distal apophyses, each with a sclerotized and pointed tip (distance between tips of distal apophyses: 0.23). Pedipalps as in Figs 1 View FIGURE 1 A–B; coxa unmodified; trochanter with short ventral apophysis with small retrolateral apophysis (arrow 1 in Fig. 1B View FIGURE 1 ); femur with small proximo-dorsal apophysis (arrow 2 in Fig. 1B View FIGURE 1 ); procursus ( Figs 1 View FIGURE 1 A–D, 5C–D) simple proximally but complex distally, with bifid subdisto-prolateral sclerite (arrow 1 in Figs 1C View FIGURE 1 , 5C View FIGURE 5 ), nearly trapezoidal subdisto-ventral sclerite (arrow 2 in Figs 1C View FIGURE 1 , 5C View FIGURE 5 ), curved subdisto-prolateral sclerite (arrow 3 in Figs 1C View FIGURE 1 , 5C View FIGURE 5 ), fan-shaped disto-retrolateral membranous lamella (arrow 1 in Figs 1D View FIGURE 1 , 5D View FIGURE 5 ), and small distoretrolateral sclerite (arrow 2 in Figs 1D View FIGURE 1 , 5D View FIGURE 5 ); bulb ( Fig. 2C View FIGURE 2 ) with cone-shaped elongation, with distally sclerotized apophysis (arrow ba in Fig. 2C View FIGURE 2 ), and embolus with a long distal spine (arrow in Fig. 2C View FIGURE 2 ). Legs with short, vertical setae on metatarsi, without spines or curved setae.

Female (IZCAS Ar41822): Similar to male, habitus as in Figs 2 View FIGURE 2 G–H. Total length 1.66 (1.74 with clypeus), carapace 0.78 long, 0.68 wide, opisthosoma 0.96 long, 0.73 wide. Tibia I: 2.44; tibia I L/d: 28. Distance PME-PME 0.24, diameter PME 0.06, distance PME-ALE 0.07, AME absent. Sternum approximately as wide as long (0.53). External female genitalia ( Figs 2A View FIGURE 2 , 5A View FIGURE 5 ) simple and flat, with pair of frontal “epigynal” pockets laterally on sclerotized plate (arrow ep in Figs 2 View FIGURE 2 A–B, 5A–B), 0.21 apart. Vulva ( Figs 2B View FIGURE 2 , 5B View FIGURE 5 ) with a pair of long, narrow pore plates (arrow pp in Figs 2B View FIGURE 2 , 5B View FIGURE 5 ), without serrated sclerites, and with short scape (arrow s in Figs 2B View FIGURE 2 , 5B View FIGURE 5 ).