Emertonella deplanata Hu & Zhang & Jiang & Liu 2026, comb. nov.

Emertonella deplanata (Schenkel, 1936) comb. nov. Figs 1 A – C, 2 A – D, 3 A, 3 B, 4 Euryopis deplanata Schenkel, 1936: 45, fig. 13 (holotype: female, China, Sichuan Province, Hsin-lung-chang; elev. 450 m; 11 May 1930; Hummel leg.; depository institution unknown; not examined); Song et al. 1999: 123 (may be a synonym of Em. taczanowskii, rejected here). Euryopis taczanowskii Zhu, 1998: 37, fig. 17 A – C (female, misidentified); Song et al. 1999: 123, fig. 63 C, D (female, misidentified). Emertonella taczanowskii Yin et al., 2012: 329, fig. 130 a – e (female, misidentified); Rajoria 2015: 46, figs 5–8 (female, misidentified). Emertinella taczanowskii Khan et al., 2025: 135, figs 14, 15 (female, misidentified). Material examined. China • 1 male (LJ 202001181); Henan Province, Xinyang City, Xin County, Liankangshan, Laomiao Village; 31.6528°N, 114.7861°E; elev. 230 m; 10 July 2020; Fengjie Liu leg. • 2 males, 1 female (LJ 202001603, 202001623, 202001629); Henan Province, Xinyang City, Jingangtai, Donghe Village; 31.7500°N, 115.5550°E; elev. 480 m; 19 July 2020; Fengjie Liu leg. • 1 female (LJ 202001744); Henan Province, Xinyang City, Shangcheng County, Fengji Town, Huangwan; 31.8703°N, 115.5331°E; elev. 120 m; 20 July 2020; Fengjie Liu leg. • 1 male, 2 females (LJ 202001787, 202001798, 202001857); Henan Province, Xinyang City, Huangchuan County, Sili Village; 31.9506°N, 115.1028°E; elev. 90 m; 22 July 2020; Fengjie Liu leg. • 1 male (LJ 202001826); Henan Province, Xinyang City, Guangshan County, Luochen Town, Qianchengwan; 31.9600°N, 114.6803°E; elev. 70 m; 22 July 2020; Fengjie Liu leg. • 2 females (LJ 202001855, 202001873); Henan Province, Xinyang City, Luoshan County, Luzhai Village; 31.9158°N, 114.4967°E; elev. 90 m; 22 July 2020; Fengjie Liu leg. • 1 female (LJ 202001908); Henan Province, Nanyang City, Tongbai County; 32.3192°N, 113.3517°E; elev. 280 m; 23 July 2020; Fengjie Liu leg. • 1 female (LJ 202002090); Henan Province, Nanyang City, Tongbai County, Huaiyuan Village; 32.4161°N, 113.2744°E; elev. 260 m; 26 July 2020; Fengjie Liu leg. • 3 females (LJ 202002127, 202002155, 202002158); Henan Province, Nanyang City, Tongbai County, Dujuanyuan; elev. 810 m; 27 July 2020; Fengjie Liu leg. • 1 male (LJ 202002184); Henan Province, Nanyang City, Baotianman, Pingfang; elev. 1340 m; 28 July 2020; Fengjie Liu leg. Diagnosis. Emertonella deplanata (Schenkel, 1936), comb. nov. is similar to Chinese Em. taczanowskii (cf. Figs 1 A – C, 2 A – D, 3 A, 3 B, 4 and Figs 1 D – F, 2 E, 2 F, 3 C, 3 D, 5), but can be distinguished by: 1. dorsal opisthosoma with two black anterior markings (vs with a black triangular marking), 2. embolic spire broad and curved (vs needle like and straight), 3. atrium triangular (vs rounded), and 4. interdistance between anterior spermathecae obviously shorter than that between the posterior pair (vs almost as long as that between the posterior pair). Description. Male (LJ 202001623): Total length 2.00. Carapace 0.68 long, 0.67 wide. Opisthosoma 1.16 long, 0.88 wide. Eyes: AME 0.08, ALE 0.05, PME 0.05, PLE 0.05, AME – AME 0.15, AME – ALE 0.09, PME – PME 0.12, PME – PLE 0.12, AME – PME 0.10, ALE – PLE 0.02. Measurements of legs: I 2.05 (0.62, 0.21, 0.48, 0.40, 0.34), II 2.09 (0.60, 0.20, 0.45, 0.64, 0.20), III 1.82 (0.58, 0.16, 0.37, 0.50, 0.21), IV 2.27 (0.65, 0.21, 0.52, 0.62, 0.27). Leg formula: IV-II-I-III. Palp (Figs 1 A – C, 2 A – D): Tibia ~ 1 / 4 length of cymbium. Cymbium oval, with a small lamellar projection. Cymbial hook triangular, situated anterior margin of alveolus. Subtegulum bowl like. Tegulum quadrangular. Median apophysis triangular in prolateral view. Theridiid tegular apophysis sclerotized, anterior margin with denticles (arrow in Fig. 1 A) and distal part with two tiny denticles. Embolic spire semicircular, broad, and directed anticlockwise, arising dorsally from embolic base. Colouration (Fig. 4 A – C): Carapace, sternum, endites and labium black. Palps and legs yellow with black markings and rings. Dorsal opisthosoma yellow, with white patches and black flecks, anteriorly with two black markings; venter black, posterior part of genital groove with three white spots, anterior part of spinnerets with a white line. Spinnerets black. Female (LJ 202001798): Total length 2.64. Carapace 0.89 long, 0.86 wide. Opisthosoma 1.89 long, 1.47 wide. Eyes: AME 0.08, ALE 0.07, PME 0.07, PLE 0.07, AME – AME 0.12, AME – ALE 0.05, PME – PME 0.12, PME – PLE 0.06, AME – PME 0.10, ALE – PLE 0.05. Measurements of legs: I 2.57 (0.77, 0.29, 0.57, 0.58, 0.36), II 2.69 (0.66, 0.25, 0.72, 0.66, 0.40), III 2.48 (0.68, 0.30, 0.49, 0.59, 0.42), IV 3.10 (0.95, 0.24, 0.52, 0.87, 0.52). Leg formula: IV-II-I-III. Epigyne (Fig. 3 A, B): Epigyne with a triangular atrium, with slight septum; anterior margins of atrium as thick as posterior margins. Copulatory openings unobvious, situated anterior atrium. Copulatory ducts and subcopulatory ducts fused and unobvious. Posterior spermathecae spherical. Anterior spermathecae spherical, ~ 1.5 × wider than posterior pair. Fertilization ducts curved, arising from posterior part of anterior spermathecae. Colouration (Fig. 4 D – F): As in male, but generally lighter. Median part of dorsal opisthosoma with a V-shaped black marking. Distribution. China (Henan, Hunan, Sichuan, Yunnan), India, Pakistan. Comments. This species was originally described based on a female specimen collected from Sichuan Province, China, with only illustrations of the opisthosoma and ventral epigyne provided (Schenkel 1936). The presence of two black markings on the anterior dorsal opisthosoma and the triangular epigynal atrium clearly supports the accuracy of our identification (cf. Figs 3 A, 4 D, 4 E and Schenkel 1936: fig. 13). The congruent opisthosomal pattern and the fact that males and females were collected together confirm the correct sex association. In addition, the male palp of this species exhibits the diagnostic characteristic of Emertonella as defined above. Therefore, we transfer this species from Euryopis to Emertonella as a new combination.