Grandilithus chongzuo, Xu & Mu & Zhang & Zhang, 2023

Xu, Mengjiao, Mu, Yannan, Zhang, Chao & Zhang, Feng, 2023, Three new species of Grandilithus Liu & Li, 2022 (Araneae, Phrurolithidae) from southern China, ZooKeys 1183, pp. 205-217 : 205

publication ID	https://dx.doi.org/10.3897/zookeys.1183.113075
publication LSID	lsid:zoobank.org:pub:394D529E-6DAB-4317-883E-7C13C189E107
DOI	https://doi.org/10.5281/zenodo.10170653
persistent identifier	https://treatment.plazi.org/id/DAFF490C-B867-47EB-95B2-7A8A19381A3F
taxon LSID	lsid:zoobank.org:act:DAFF490C-B867-47EB-95B2-7A8A19381A3F
treatment provided by	ZooKeys by Pensoft
scientific name	Grandilithus chongzuo
status	sp. nov.

Treatment

Grandilithus chongzuo sp. nov.

Figs 1 View Figure 1 , 2 Chinese name: 崇左大斑蛛 View Figure 2

Type material.

Holotype ♂ (GXCZ-16-46): China: Pairu Village, Zuozhou Town, Chongzuo City, Guangxi Zhuang Autonomous Region (22°34.40'N, 107°25.36'E; 203 m a.s.l.), 4 November 2016, leg. Guiqiang Huang. Paratype: 2♀, with same data as holotype.

Etymology.

The specific epithet refers to the type locality.

Diagnosis.

This species resembles G. nonggang (Liu, Xu, Xiao, Yin & Peng, 2019) in having a similarly shaped embolus and sperm duct, but can be recognized by: 1) the long RTA, with thin base and coracoid-shaped tip (vs RTA short, base wide, cf. Fig. 2B-D View Figure 2 with fig. 11B-D in Liu et al. 2019); 2) the oval tegulum and the slightly curved tegular apophysis without an expanded tip (vs tegulum nearly circular, tegular apophysis straight with an expanded tip, cf. Fig. 2B-D View Figure 2 with fig. 11C in Liu et al. 2019); 3) the short copulatory duct (vs long, cf. Fig. 2E, F View Figure 2 with fig. 12B, C in Liu et al. 2019); 4) the small, thin glandular appendage (vs thick, cf. Fig. 2E, F View Figure 2 with fig. 12B, C in Liu et al. 2019); and 5) the small spermathecae, with thin connecting tubes (vs connecting tubes strong and thick, spermathecae large, cf. Fig. 2E, F View Figure 2 with fig. 12B, C in Liu et al. 2019).

Description.

Male (holotype): total length 3.27, carapace 1.56 long, 1.34 wide; abdomen 1.71 long, 1.00 wide. Eye sizes and interdistances: AME 0.14, ALE 0.12, PME 0.09, PLE 0.11; AME-AME 0.05, AME-ALE 0.02, ALE-ALE 0.33, PME-PME 0.10, PME-PLE 0.04, PLE-PLE 0.37, ALE-PLE 0.08. EAW 0.52, CRW 0.68, EAW/CRW 0.76, CRW/CW 0.51. MOA 0.34 long, anterior width 0.32, posterior width 0.29. CH 0.13. CH/AME 0.93. Labium 0.14 long, 0.23 wide. Sternum 0.89 long, 0.77 wide. Leg measurements: I 8.41 (2.07, 0.56, 2.36, 1.92, 1.50), II 6.58 (1.73, 0.51, 1.70, 1.44, 1.20), III 5.42 (1.44, 0.47, 1.16, 1.42, 0.93), IV 8.79 (2.37, 0.57, 2.04, 2.44, 1.37), leg pattern: 4123. Spination: femur I-IV d 1, femur I pl 5, femur II pl 3, tibia I pv 9 rv 9, tibia II pv 9 rv 8, metatarsus I pv 4 rv 4, metatarsus II pv 4 rv 3.

Coloration. Carapace yellowish, with several patches resembling flowing droplets beside fovea. Abdomen gray, with a small, fawn dorsal scutum anteriorly and several lighter colored transverse stripes posteriorly. A small, irregular, slightly sclerotized area in front of the spinnerets with black setae. Leg light yellow.

Palp as in Fig. 2A-D View Figure 2 . Femoral apophysis protruding. Tubercle distinct. Retrolateral tibial apophysis long, tip curved, coracoid-shaped. Tegulum oval, thinner than cymbium; tegular apophysis slightly curved, tip not expanded. Sperm duct distinct, tapering from retrolateral of tegulum to base of embolus. Embolus curved, tip sharp.

Female (paratype): total length 4.18, carapace 1.51 long, 1.30 wide; abdomen 2.67 long, 1.61 wide. Eye sizes and interdistances: AME 0.13, ALE 0.12, PME 0.08, PLE 0.10; AME-AME 0.05, AME-ALE 0.01, ALE-ALE 0.32, PME-PME 0.09, PME-PLE 0.04, PLE-PLE 0.35, ALE-PLE 0.06. EAW 0.51, CRW 0.66, EAW/CRW 0.77, CRW/CW 0.51. MOA 0.30 long, anterior width 0.30, posterior width 0.27. CH 0.11, CH/AME 0.85. Labium 0.13 long, 0.24 wide. Sternum 0.85 long, 0.77 wide. Leg measurements: I 7.75 (1.94, 0.56, 2.30, 1.70, 1.25), II 6.15 (1.55, 0.48, 1.77, 1.23, 1.12), III 4.99 (1.32, 0.45, 1.11, 1.32, 0.79), IV 7.97 (2.15, 0.54, 1.86, 2.27, 1.15), leg pattern: 4123. Spination: femur I-IV d 1, femur I pl 6, femur II pl 4, tibia I pv 10 rv 10, tibia II pv 9 rv 9, metatarsus I pv 4 rv 4, metatarsus II pv 4 rv 3.

Coloration. Carapace yellow-brown, darker than male, with several patches resembling flowing droplets beside fovea. Abdomen dark gray without dorsal scutum. A small, irregular, slightly sclerotized area in front of the spinnerets with black setae. Leg yellow-brown.

Epigyne as in Fig. 2E, F View Figure 2 . Epigynal plate slightly sclerotized. Median septum broad. Copulatory openings small, separated by median septum. Copulatory ducts bent. Bursa nearly rectangular. Glandular appendages thin, short, cylindrical. Connecting tubes curved, thinner than copulatory ducts. Spermathecae small, oval, slanted, separated. Fertilization ducts located at posterior of spermathecae.

Distribution.

China: Guangxi Zhuang Autonomous Region (Fig. 7 View Figure 7 ).