Chorizopesoides guoi, Mi & Li, 2021

Mi, Xiaoqi & Li, Shuqiang, 2021, Nine new species of the spider family Araneidae (Arachnida, Araneae) from Xishuangbanna, Yunnan, China, ZooKeys 1072, pp. 49-81 : 49

publication ID	https://dx.doi.org/10.3897/zookeys.1072.73345
persistent identifier	https://treatment.plazi.org/id/4E097BE2-0A25-5EC6-BB80-7B619433C73F
treatment provided by	ZooKeys by Pensoft
scientific name	Chorizopesoides guoi
status	sp. nov.

Treatment

Chorizopesoides guoi View in CoL sp. nov.

Figs 5 View Figure 5 , 6 View Figure 6 , 20B View Figure 20

Type material

. Holotype. ♂ (IZCAS-Ar42520), China: Yunnan, Xishuangbanna, Mengla County, Menglun Town, Menglun Nature Reserve, primary tropical seasonal rainforest (21°55.04'N, 101°16.50'E, ca 560 m), 22.VII.2007, G. Zheng leg. Paratypes: 2♂3♀ (IZCAS-Ar42521-42525), same data as holotype; 1♀ (IZCAS-Ar42526), primary tropical seasonal rainforest (21°57.43'N, 101°12.28'E, ca 792 m), 1-15.VI.2007, G. Zheng leg.; 1♂1♀ (IZCAS-Ar42527-42528), secondary tropical seasonal moist forest (21°54.72'N, 101°16.94'E, ca 650 m), 27.VII.2007, G. Zheng leg.; 3♂2♀ (IZCAS-Ar42529-42533), secondary tropical seasonal moist forest (21°54.61'N, 101°17.01'E, ca 630 m), 28.VII.2007, G. Zheng leg.

Other material examined

. 1♀ (IZCAS-Ar42534), Xishuangbanna Tropical Botanical Garden, eastern part (21°54.07'N, 101°16.36'E, ca 540 m), 16.VII.2018, X. Mi leg.; 1♀ (IZCAS-Ar42535), Xishuangbanna Tropical Botanical Garden, vine garden (21°55.76'N, 101°15.73'E, ca 490 m), 17.VII.2018, night, X. Mi leg.; 1♀ (IZCAS-Ar42536), G213 roadside near 68 km (21°53.82'N, 101°16.79'E, ca 620 m), 27.VII.2018, X. Mi leg.

Comparative material

. Chorizopesoides wulingensis , Holotype ♀, CHINA: Hunan, Sangzhi County, Nanmuping, 17.XIII.1984, J.F. Wang leg. (Fig. 7 View Figure 7 )

Etymology

. The species is named after Professor Guo Zheng, one of the collectors of the type specimens; noun (name) in genitive case.

Diagnosis

. The new species resembles C. wulingensis and C. annasestakovae sp. nov. in appearance, but females can be distinguished from both by the: 1) copulatory ducts spirally coiled vs. circular (Fig. 7C View Figure 7 ; Mi and Wang, 2018: fig. 3E); 2) pale abdomen with distinct black stripes vs. dark brown abdomen with indistinct stripes; 3) pale cephalon behind eyes vs. dark cephalon with two small, pale spots (Fig. 7D View Figure 7 ) or without spots ( Mi and Wang, 2018: fig. 1C). From C. wulingensis by the: 1) scape shorter than half a spermatheca diameter vs. longer than half a spermatheca diameter (Fig. 7 View Figure 7 ); 2) median plate narrower than a spermatheca diameter vs. wider than a spermatheca diameter (Fig. 7 View Figure 7 ); it can be distinguished from C. annasestakovae sp. nov. by the: 1) scape not concave vs. concave ( Mi and Wang, 2018: fig. 3D-E); 2) shape of the epigyne wider than long vs. as long as wide; 3) palpal tibia wider than long with a cluster of macrosetae vs. as long as tibia width without conspicuous macrosetae ( Mi and Wang, 2018: fig. 3A, C); 4) tegulum triangularly elongated (retrolateral view) vs. not so elongated and rounder ( Mi and Wang, 2018: fig. 3C); 5) median apophysis slender, two times longer than wide vs. shorter and higher ( Mi and Wang, 2018: fig. 3A); 6) tip of the embolus extending beyond the edge of the tegulum (apical view) vs. shorter embolus, not reaching the edge of the tegulum ( Mi and Wang, 2018: fig. 3B).

Description

. Male (holotype, Figs 5A, B View Figure 5 , 6D, E View Figure 6 , 20B View Figure 20 ). Total length 2.90. Carapace 1.60 long, 0.95 wide. Abdomen 1.65 long, 1.40 wide. Clypeus 0.18 high. Eye sizes and interdistances: AME 0.13, ALE 0.08, PME 0.10, PLE 0.08, AME-AME 0.13, AME-ALE 0.40, PME-PME 0.25, PME-PLE 0.43, MOA length 0.30, anterior width 0.33, posterior width 0.43. Leg measurements: I 3.41 (0.95, 1.13, 0.80, 0.53), II 3.46 (0.90, 1.15, 0.88, 0.53), III 2.40 (0.70, 0.80, 0.50, 0.40), IV 3.29 (0.95, 1.13, 0.73, 0.48). Carapace rectangular, dark brown, with sparse, pale setae, cervical groove obvious. Chelicerae dark brown, five promarginal teeth. Endites wider than long, dark brown basally, paler distally, labium wider than long, triangular, dark brown. Sternum triangular, dark brown, paler medially. Legs yellow with brown annulations. Abdomen about 1.2 times longer than wide, with three pairs of lateral tubercles and three vertical caudal tubercles, dorsum grayish black with lots of brown sigilla; venter grayish black. Spinnerets yellowish brown.

Palp (Figs 5 View Figure 5 , 20B View Figure 20 ): tibia with a cluster of macrosetae (approx. 12) distal-dorsally, macrosetae about 1.5 times length of tibia; median apophysis about 1/2 length of bulb diameter in apical view, distal end pointed; embolus extremely long, slender, more than two times length of bulb diameter; terminal apophysis membranous, equal in length to embolus; conductor membranous, shorter than median apophysis in prolateral view.

Female (paratype IZCAS-Ar42521, Fig. 6A-C, E, F View Figure 6 ). Total length 3.55. Carapace 1.75 long, 1.40 wide. Abdomen 2.00 long, 1.75 wide. Clypeus 0.15 high. Eye sizes and interdistances: AME 0.13, ALE 0.08, PME 0.10, PLE 0.08, AME-AME 0.15, AME-ALE 0.45, PME-PME 0.25, PME-PLE 0.48, MOA length 0.30, anterior width 0.30, posterior width 0.40. Leg measurements: I 3.31 (0.90, 1.10, 0.78, 0.53), II 3.19 (0.88, 1.08, 0.75, 0.48), III 2.46 (0.70, 0.83, 0.48, 0.45), IV 3.45 (1.00, 1.25, 0.75, 0.45). Habitus as in male, coloration much paler.

Epigyne

(Fig. 6A-C View Figure 6 ): about two times wider than long, scape shorter than half a spermatheca diameter; copulatory openings concave, located at lateral side of posterior surface; copulatory ducts long, coiled 720°; spermathecae globular, touching each other.

Variation

. Total length: ♂♂ 2.55-3.05; ♀♀ 3.25-4.85.

Distribution

. China (Yunnan).