Nasoonaria nonggangensis Irfan, Zhang & Peng

Irfan, Muhammad, Zhou, Gu-Chun, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2025, Survey of Linyphiidae spiders (Arachnida: Araneae) from some Oriental Regions of China, Megataxa 15 (1), pp. 1-248 : 112-116

Nasoonaria nonggangensis Irfan, Zhang & Peng , sp. n.

(ḨḔḏe)

Figures 146–149 , 309

Types. Holotype ♂, CHINA, Guangxi Prov.: Nonggang Town, Nonggang Nature Reserve , 22.47318°N, 106.95792°E, 184 m, 25.X.2017, Q. Cai leg. Paratypes: 9♂ 11♀, with same data as for holotype; 1♂, Chongzuo District, Zuozhou Town, Zhenguang He Vill ., 29.07466°N, 107.07221°E, 297 m, 28.VIII.2015, Q. Cai leg. ( HNU– GX–0001 ); 1♂, Chongzuo District, Jiangzhou District , ZuozhouTown, GuangheVill. , 22.57013°N, 107.41671°E, 276 m, 31.VIII.2015, Q. Cai leg. ( HNU–GX–0004 ); 2♂, Chongzuo District, Jiangzhou District, Zuozhou Town, Guanghe Vill ., 22.60530°N, 107.42795°E, 224 m, 09.IX.2015, Q. Cai leg. ( HNU–GX–0013 ); 11♂ 9♀, Nonggang Town, Nonggang Nature Reserve , 22.47318°N, 106.95792°E, 184 m, 25.X.2017, Q. Cai leg.

Etymology. The specific epithet is derived from the type locality; adjective.

Diagnosis. The male of Nasoonaria nonggangensis sp. n. resembles that of N. pseudoembolica in having similar long distal suprategular apophysis ( Figs 146A–D , 148A, D ; Tanasevitch 2019, figs 14–17), but can be distinguished by the paracymbium J-shaped in N. nonggangensis sp. n. ( Figs 146B , 148D ; vs. L-shaped); cymbial retrobasal process present in N. nonggangensis sp. n. ( Figs 146B , 148D ; vs. absent); radix longer than wide in N. nonggangensis sp. n. ( Figs 146A , 148A ; vs. almost round). The female of N. nonggangensis sp. n. resembles those of N. orthogonia in having the similar spermathecae present posterolaterally on dorsal plate ( Figs 147A–C , 148B, C ; Irfan et al. 2022, figs 222A–C), and can be distinguished by the copulatory ducts present mid dorsally forming broad loop in N. nonggangensis sp. n. ( Figs 147A–C , 148B, C ; vs. with long loop extending anteriorly).

Description. Male (holotype, Figs 149A–C ): Total length: 1.81. Carapace 0.75 long, 0.58 wide, brown, cervical and radial grooves distinct; cephalic pits present mid dorsally behind the posterior row of eyes, cephalic region strongly elevated with thick setae. Clypeus 0.16 high. Chelicerae with four promarginal and five retromarginal teeth. Sternum longer than wide, dark brown with microsetae. Eyes: AER recurved, PER straight, slightly wider. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.08, PLE 0.07, AME–AME 0.02, PME– PME 0.04, AME–ALE, 0.06, PME–PLE 0.04, AME– PME 0.04, ALE–ALE 0.28, PLE–PLE 0.31, ALE–PLE contiguous. Length of legs: I 2.61 (0.73, 0.84, 0.60, 0.41), II 2 50 (0.70, 0.82, 0.56, 0.42), III 1.98 (0.57, 0.59, 0.46, 0.36), IV 2.63 (0.75, 0.83, 0.62, 0.43). TmI and TmIV present. Tibial spine formula: 2-2-1-1. Opisthosoma 1.12 long, 0.69 wide, oval, dusky grey, posteriorly with 3 chevrons, base of spinnerets with black patch, laterally greenish, ventral side dusky grey.

Palp ( Figs 146A–D , 148A, D ): Femur unmodified, as long as both patella and tibia. Patella shorter than tibia, ventrally grooved. Tibia conic, with two retrolateral and one dorsal trichobothria, retrolateral margin with several thick spines; Cymbium unmodified, cymbial retrobasal process (RBP) somewhat rectangular, partly covering subtegulum; paracymbium (PC) ventrally grooved, distal arm tip hook-shaped; protegulum (PT) simple, tip transparent; distal suprategular apophysis (DSA) basally broad, ventrally grooved, gradualy narrowing towards the tip. Embolic membrane (EM) reduced. Embolus (E) long, whip-like, slightly curved, L-shaped.

Female (one of the paratypes, Figs 149D–F ): Total length: 1.96. Carapace 0.74 long, 0.55 wide, yellowish brown, cervical and radial grooves distinct; cephalic region slightly elevated with microsetae. Clypeus 0.15 high. Chelicerae with four promarginal and five retromarginal teeth. Sternum longer than wide, brown with microsetae. Eyes: AER recurved, PER straight, slightly wider. Eye sizes and interdistances:AME 0.05, ALE 0.08, PME 0.04, PLE 0.07, AME–AME 0.02, PME–PME 0.04, AME– ALE, 0.02, PME–PLE 0.04, AME–PME 0.04, ALE–ALE 0.27, PLE–PLE 0.31, ALE–PLE contiguous. Length of legs: I 2.6 (0.75, 0.84, 0.57, 0.44), II 2.44 (0.70, 0.79, 0.54, 0.41), III 2.03 (0.61, 0.60, 0.49, 0.33), IV 2.64 (0.76, 0.84, 0.63, 0.41). TmI and TmIV present. Tibial spine formula: 2-2-1-1. Opisthosoma 1.26 long, 0.85 wide, oval, dusky grey, posteriorly with three chevrons, base of spinnerets with black patch; ventral side grey.

Epigyne ( Figs 147A–C , 148B, C ): Ventral plate (VP) reduced. Dorsal plate (DP) wider than long, completely exposed. Copulatory opening (CO) situates posteriorly; copulatory ducts (CD) broad, extending anteriorly then turn back to spermathecae. Spermathecae (S) globular, spaced by threediameters. Fertilization ducts (FD) directed mesally.

Distribution. Known only from the type localities (Guangxi Province, Fig. 309 ).

Figures

FIGURE 146. Nasoonaria nonggangensis sp. n., male holotype palp. A prolateral view; B retrolateral view; C dorsal view; D ventral view. Abbreviations: DSA—distal suprategular apophysis; E—embolus; Em—embolic membrane; PC—paracymbium; PT—protegulum; RBP—cymbial retrobasal process.

FIGURE 147. Nasoonaria nonggangensis sp. n., female paratype.A, B Epigyne, ventral view; C Vulva, dorsal view.Abbreviations: CD—copulatory duct; CO—copulatory opening; DP—dorsal plate; FD—fertilization duct; S—spermatheca; VP—ventral plate.

FIGURE 148. Nasoonaria nonggangensis sp. n., male holotype (A, D) and female paratype (B, C). A Palp, prolateral view; B Epigyne, ventral view; C Vulva, dorsal view; D Palp, retrolateral view. Abbreviations: CD—copulatory duct; CO—copulatory opening; DP—dorsal plate; DSA—distal suprategular apophysis; E—embolus; Em—embolic membrane; FD—fertilization duct; PC—paracymbium; PT—protegulum; R—radix; RBP—cymbial retrobasal process; S—spermatheca; VP—ventral plate.

FIGURE 149. Nasoonaria nonggangensis sp. n., male holotype (A–C) and female paratype (D–F). A, D Habitus, dorsal view; B, E Habitus, lateral view; C, F Habitus, ventral view.

FIGURE 309. 1. Nasoonaria nonggangensis sp. n.; 2. Ummeliata insecticeps (Bösenberg & Strand, 1906).