Belisana maoer Yao & Li, 2020

Zhu, Wenhui, Yao, Zhiyuan, Zheng, Guo & Li, Shuqiang, 2020, Six new species of the spider genus Belisana Thorell, 1898 (Araneae: Pholcidae) from southern China, Zootaxa 4810 (1), pp. 175-197 : 179-182

publication ID	https://doi.org/ 10.11646/zootaxa.4810.1.12
publication LSID	lsid:zoobank.org:pub:424415DC-807E-493A-8883-903D2ADE9427
DOI	https://doi.org/10.5281/zenodo.10564679
persistent identifier	https://treatment.plazi.org/id/039FEF34-3D0A-FFC9-FF3C-F470947FFE74
treatment provided by	Plazi
scientific name	Belisana maoer Yao & Li
status	sp. nov.

Treatment

Belisana maoer Yao & Li View in CoL sp. nov.

Figs 3–4 View FIGURE 3 View FIGURE 4 , 13 View FIGURE 13 C–D, 14C–D

Type material. Holotype: Male ( IZCAS Ar39850), Maoer Cave (28°17’39.73”N, 105°13’16.32”E, elevation 345 m), Gusong Town , Xingwen County, Yibin, Sichuan, China, 26 April 2014, Y. Lin, H. Zhao, Y. Li, J. Wu and F. Li leg. GoogleMaps Paratypes: 1 male ( IZCAS Ar39851) and 2 females ( IZCAS Ar39852–39853), 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. galeiformis Zhang & Peng, 2011 (see Zhang & Peng 2011: 52, fig. 1) with similar male chelicerae ( Fig. 4D View FIGURE 4 ), bulbal apophyses ( Fig. 4C View FIGURE 4 ) and vulval pore plates (arrow pp in Figs 4B View FIGURE 4 , 14D View FIGURE 14 ), but males can be distinguished by presence of curved subdisto-prolateral sclerite on procursus (arrow 1 in Figs 3C View FIGURE 3 , 13C View FIGURE 13 ), by presence of long retrolatero-ventral apophysis on pedipalpal trochanter (arrow in Fig. 3B View FIGURE 3 ) and by absence of proximo-dorsal apophysis on pedipalpal femur ( Figs 3 View FIGURE 3 A–B). Females can be distinguished by having frontal “epigynal” pockets anteriorly on sclerotized plate (arrow ep in Figs 4 View FIGURE 4 A–B, 14C–D) and strongly protruding median ridge of anterior arch (arrow in Figs 4B View FIGURE 4 , 14D View FIGURE 14 ). Also distinguished by absence of median marks on carapace of both sexes ( Figs 4E, 4G View FIGURE 4 ).

Description. Male (holotype, IZCAS Ar39850): Total length 1.75 (1.88 with clypeus), carapace 0.73 long, 0.70 wide, opisthosoma 1.02 long, 0.86 wide. Leg I: 16.86 (4.23 + 0.26 + 4.36 + 6.73 + 1.28), leg II: 11.22 (3.21 + 0.25 + 2.76 + 4.17 + 0.83), leg III: 7.55 (2.24 + 0.19 + 1.92 + 2.69 + 0.51), leg IV: 9.70 (2.82 + 0.22 + 2.56 + 3.33 + 0.77); tibia I L/d: 70. Distance PME-PME 0.22, diameter PME 0.08, distance PME-ALE 0.09, AME absent. Sternum slightly wider than long (0.63/0.55). Habitus as in Figs 4 View FIGURE 4 E–F. Carapace pale, with indistinct black lateral margins; sternum pale, without marks. Legs pale, without darker rings. Opisthosoma pale, with indistinct dark spots. Ocular area not elevated. Thoracic furrow absent. Clypeus unmodified. Chelicerae ( Fig. 4D View FIGURE 4 ) with pair of small proximo-lateral apophyses and pair of short, curved distal apophyses (distance between tips of distal apophyses: 0.31). Pedipalps as in Figs 3 View FIGURE 3 A–B; coxa unmodified; trochanter with long retrolatero-ventral apophysis (arrow in Fig. 3B View FIGURE 3 ); femur without proximo-dorsal hump; procursus ( Figs 3 View FIGURE 3 A–D, 13C–D) simple proximally but complex distally, with curved subdisto-prolateral sclerite (arrow 1 in Figs 3C View FIGURE 3 , 13C View FIGURE 13 ), long distal spine (arrow 2 in Figs 3C View FIGURE 3 , 13C View FIGURE 13 ), nearly elliptic, distal membranous lamella (arrow 3 in Figs 3C View FIGURE 3 , 13C View FIGURE 13 ) and narrow retrolateral membranous flap (arrow f in Figs 3D View FIGURE 3 , 13D View FIGURE 13 ), without subdisto-dorsal protruding part; bulb ( Fig. 4C View FIGURE 4 ) with hooked apophysis and simple embolus. Retrolateral trichobothria of tibia I at 10% proximally; legs with short vertical setae on metatarsi, without spines and curved setae; tarsus I with 22 distinct pseudosegments.

Female (IZCAS Ar39852): Similar to male, habitus as in Figs 4 View FIGURE 4 G–H. Total length 1.81 (1.90 with clypeus), carapace 0.75 long, 0.70 wide, opisthosoma 1.06 long, 0.81 wide. Tibia I: 3.01; tibia I L/d: 48. Distance PME-PME 0.24, diameter PME 0.08, distance PME-ALE 0.08, AME absent. Sternum slightly wider than long (0.55/0.47). Carapace with black margins. External female genitalia ( Figs 4A View FIGURE 4 , 14C View FIGURE 14 ) simple and flat, light brown, with pair of frontal “epigynal” pockets anteriorly on sclerotized plate (arrow ep in Figs 4 View FIGURE 4 A–B, 14C–D), 0.11 apart. Vulva ( Figs 4B View FIGURE 4 , 14D View FIGURE 14 ) with W-shaped anterior arch (median ridge strongly protruding, arrow in Figs 4B View FIGURE 4 , 14D View FIGURE 14 ) and pair of narrow pore plates (arrow pp in Figs 4B View FIGURE 4 , 14D View FIGURE 14 ), without serrated sclerites.