Parazygiella yanghongae Mi & Wang 2026, sp. nov.

Parazygiella yanghongae Mi & Wang sp. nov. Figs 6, 7, 8 Chinese name. 杨红副楚蛛. Type material. Holotype: China • ♂; Xizang Auton. Region, Shigatse City, Yadong Co., Xiasima Township, Chunpi Vill.; 27°28.30'N, 88°54.53'E, ca 2,920 m a. s. l.; 9 Aug. 2019; X. Q. Mi & C. Wang leg.; TRU - Araneidae -468. Paratypes: • 3 ♀♀ 2 ♂♂; same data as for holotype; TRU - Araneidae -469 –473. Etymology. The specific name is the full name of Professor Hong Yang, a forestry expert (Tongren University, China). Diagnosis. Parazygiella yanghongae Mi & Wang, sp. nov. resembles P. jianxini Mi & Wang, sp. nov. in both somatic and morphology of copulatory organs, but it can be distinguished by having the tegular projection (TP) about 1 / 2 of the cymbial length (Fig. 7 C) vs 4 / 5 of cymbial length (Fig. 4 C); and epigyne widest at basal part (Fig. 8 A) vs widest at middle part (Fig. 5 A). Description. Male (holotype, Figs 6 D – F, 7 A – E). Total length 6.80. Carapace 3.40 long, 2.60 wide. Abdomen 4.00 long, 2.40 wide. Clypeus 0.10 high. Eye sizes and interdistances: AME 0.23, ALE 0.15, PME 0.18, PLE 0.15, AME – AME 0.13, AME – ALE 0.08, PME – PME 0.15, PME – PLE 0.20, MOA length 0.53, anterior width 0.53, posterior width 0.50. Leg measurements: I 16.20 (4.20, 5.70, 4.70, 1.60), II 12.20 (3.30, 4.20, 3.40, 1.30), III 7.60 (2.40, 2.50, 1.70, 1.00), IV 9.40 (2.90, 3.30, 2.20, 1.00). Carapace yellowish brown, with darker cephalic region (Fig. 6 D, F). Cervical groove conspicuous (Fig. 6 D). Chelicerae dark brown, with three promarginal and two retromarginal teeth (Fig. 6 E, F). Endites with tooth anterolaterally, brown at base, with paler tip; labium dark brown at base, with paler tip too (Fig. 6 E, F). Sternum dark brown (Fig. 6 E). Legs yellow with brown annuli and spots (Fig. 6 D). Abdomen ~ 1.32 × longer than wide, dorsal patches extended from anterior to posterior, dark brown with white median longitudinal band (Fig. 6 D, F). Venter of abdomen yellow to dark brown with paired white bracket-shaped marks laterally (Fig. 6 E). Spinnerets yellowish (Fig. 6 E, F). Palp (Fig. 7 A – E): femur ~ 4.0 × longer than wide (Fig. 6 D – F); patella as long as wide (Fig. 7 A – C, E); tibia as wide as long in ventral view (Fig. 7 A – C, E); cymbium ~ 1.1 × longer than wide, retrolateral edge swollen (Fig. 7 A – E); paracymbium heavily sclerotized, divided into two lobes with sharp distal edges (Fig. 7 B – E); bulb ~ 1.3 × longer than wide in ventral view; tegulum with long, horn shaped projection (TP), about as long as 1 / 2 cymbium length (Fig. 7 A – E); radix (R) long and curved, heavily sclerotized, running parallel to edge of cymbium; median apophysis (MA) situated near base of bulb, short, rod-shaped, heavily sclerotized, with dozen of ridges distally (Fig. 7 A, B, E); embolus long, flattened, with wide, translucent base, curved over tip of tegulum and extending basally nearly half of bulb length (Fig. 7 A, B, D, E); conductor (C) translucent, roughly square (Fig. 7 A, B, D, E); terminal apophysis (TA) about 3 / 5 of bulb width in ventral view, arched angularly over tip of bulb (Fig. 7 A – E). Female (paratype TRU - Araneidae -469, Figs 6 A – C, 8 A – D). Total length 6.90. Carapace 3.00 long, 2.30 wide. Abdomen 4.50 long, 3.40 wide. Clypeus 0.10 high. Eye sizes and interdistances: AME 0.23, ALE 0.15, PME 0.18, PLE 0.15, AME – AME 0.08, AME – ALE 0.08, PME – PME 0.13, PME – PLE 0.18, MOA length 0.50, anterior width 0.48, posterior width 0.48. Leg measurements: I 10.80 (3.00, 3.90, 2.70, 1.20), II 8.70 (2.50, 3.00, 2.20, 1.00), III 5.80 (1.90, 1.90, 1.20, 0.80), IV 7.70 (2.50, 2.70, 1.70, 0.80). Habitus similar to that of male (Fig. 6 A – C). Epigyne (Fig. 8 A – D): ~ 1.15 × longer than wide in ventral view, slightly convex, widest at basal part, with few transverse ridges and grooves, scape about 7 / 10 epigynal base width, round distally (Fig. 8 A, C); posterior plate smooth, ~ 1.36 × wider at anterior than posterior (Fig. 8 B); copulatory openings slit-like, situated on dorsal surface of scape (Fig. 8 D); copulatory ducts slightly curved, connected to spermathecae at anterodorsal surface (Fig. 8 D); spermathecae rounded, about 1 radius apart (Fig. 8 D); fertilization ducts (FD) about equal length to diameter of spermatheca. Variation. Total length: ♂♂ 6.50–6.80 (N = 3), ♀♀ 6.20–6.90 (N = 3). Natural history. The spiders weave webs on tall roadside trees during the night. Distribution. China (Xizang) (Fig. 9). Note. Based on the close similarities in both somatic and morphology of copulatory organs of Zygiella hiramatsui Tanikawa, 2017 and Z. nearctica Gertsch, 1964 to the type species of Parazygiella, P. montana, such as longitudinal dorsal patches on elliptical abdomen, paracymbium divided into two lobes distally, presence of terminal apophysis (Tanikawa 2017), together with the molecular phylogenetic evidence (Kallal and Hormiga 2018; Kallal et al. 2020), we propose the following new combinations: P. hiramatsui (Tanikawa, 2017), comb. nov. and P. nearctica (Gertsch, 1964), comb. nov.