Septsigilla tongbiguan Zhang & Zhang, 2025

Zhang, Haibin, Yu, Kun, Zuo, Anru & Zhang, Feng, 2025, Description of a new genus, Septsigilla gen. nov., with two new species from China (Araneae: Miturgidae: Systariinae), Zootaxa 5666 (1), pp. 125-135 : 127-130

publication ID	https://doi.org/10.11646/zootaxa.5666.1.7
publication LSID	lsid:zoobank.org:pub:83E0EB70-AACC-4E55-A7A0-38696A287134
DOI	https://doi.org/10.5281/zenodo.16610598
persistent identifier	https://treatment.plazi.org/id/03C39202-C103-750A-48AB-FE19D74EFD47
treatment provided by	Plazi
scientific name	Septsigilla tongbiguan Zhang & Zhang
status	sp. nov.

Treatment

Septsigilla tongbiguan Zhang & Zhang sp. nov. (DZ壁关七se)

Figs 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 , 7A View FIGURE 7 , 8A View FIGURE 8 , 9 View FIGURE 9

Type material. Holotype ♂ (MHBUARA-2024-887-1), Yunnan, Yingjiang County, Tongbiguan Town , 24.5915°N, 97.6776°E, 1336.2 m elev., 9 October 2024, leg. K. Yu, Y. Ni and Y. Xu. GoogleMaps Paratypes. 6♂ 4♀ (MHBUARA-2024-887- 2–11), same data as holotype GoogleMaps .

Other material examined. 1♂ 2♀ (MHBUARA-2024-881-1–3), Yunnan, Yingjiang County, Tongbiguan Town , 24.6268°N; 97.6395°E, 1371.6 m elev., 5 October 2024, leg. K. Yu, Y. Ni and Y. Xu GoogleMaps ; 2♀ (MHBUARA-2024- 64-1–2), Yunnan, Longling County, Longjiang Town , 98.7670°E, 24.8259°N, 2183 m elev., 5 April 2024, leg. J. Zhao and X. Qi. GoogleMaps

Etymology. The specific name is a noun in apposition derived from the type locality.

Diagnosis. The new species resembles Septsigilla zhongi sp. nov., but can be distinguished by: 1) chelicera with three retromarginal teeth (vs. chelicera with two retromarginal teeth); 2) the patella without apophysis (DPA, Figs 3A, C View FIGURE 3 ; vs. the patella presents an apophysis on its dorsal part, Figs 6A, C View FIGURE 6 ); 3) the smooth embolus without any apophysis ( Figs 3A‒C View FIGURE 3 , 8A View FIGURE 8 ; vs. the embolus with three small embolic teeth on its distal two thirds, Figs 6A‒C View FIGURE 6 , 8B View FIGURE 8 ); 4) the top margin of the connecting tube obviously higher than the bursa ( Fig. 3E View FIGURE 3 ; vs. the top margin of the connecting tube close to the bursa, Fig. 6E View FIGURE 6 ).

Description. Male holotype ( Figs 1A‒B View FIGURE 1 , 2A‒D View FIGURE 2 ) total length 6.52; prosoma 3.33 long, 2.63 wide; opisthosoma 3.20 long, 1.80 wide. Eye sizes and interdistances: AME 0.09, ALE 0.13, PME 0.12, PLE 0.13; AME‒AME 0.09, AME‒ALE 0.05, ALE‒ALE 0.34, PME‒PME 0.11, PME‒PLE 0.12, PLE‒PLE 0.60, ALE‒PLE 0.06. OAW 0.77, CRW 1.30, OAW/CRW 0.59, MOA 0.34 long, anterior width 0.25, posterior width 0.37, posterior eye row slightly wider than anterior eye row. CH 0.13, CH /AME 1.44. Endites and labium yellowish-brown. Sternum yellow, 1.60 long, 1.29 wide. Leg measurements: Ⅰ 9.10 (2.43, 0.99, 2.28, 1.91, 1.49), II 7.60 (2.24, 0.93, 1.72, 1.45, 1.26), III 6.82 (2.02, 0.89, 1.25, 1.69, 0.97), IV 9.25 (2.51, 0.84, 2.10, 2.76, 1.04); leg formula 4123. Leg spination: femora: Ⅰ d1-1-1, p0-0-2; II d1-1-1, p0-0-1; III d1-1-1, p0-1-1, r0-1-1; IV d1-1-1, p0-1-1, r0-0-1. Tibiae: Ⅰ p0-0-1, v1-2-2; II p0-1-1, v1-2-1; III d1-0-0, p1-1-0, r1-1-0, v2-2-2; IV d1-0-0, p1-1-0, r1-1-0, v2-2-2. Metatarsi: Ⅰ v2-2-0; II p0-1-0, v2-2-0; III d2-2-2, p1-1-1, r1-1-1, v2-2-2; IV d2-2-2, p1-1-1, r1-1-1, v2-2-2. Opisthosoma dorsally grey, with a pair of white, irregular stripes and five pairs of white transverse stripes.

Palp ( Figs 3A–C View FIGURE 3 , 8A View FIGURE 8 ). RTA hook-shaped in retrolateral view, with rectangular extension at base. Cymbial concavity developed, about half as long as cymbium. Posterior elongation of tegulum extending to median part of tibia. Embolus originating at 7- to 8-o’clock-position from tegulum, extending clockwise to 2-o’clock-position, then curving towards the distal end of cymbium. Conductor fan-shaped.

Female paratype ( Figs 1C–D View FIGURE 1 , 2E View FIGURE 2 , MHBUARA-2024-887-8) total length 6.56, prosoma 3.11 long, 2.19 wide; Opisthosoma 3.45 long, 1.92 wide. Eye sizes and interdistances: AME 0.09, ALE 0.13, PME 0.12, PLE 0.12; AME ‒ AME 0.08, AME ‒ ALE 0.05, ALE ‒ ALE 0.35, PME ‒ PME 0.12, PME ‒ PLE 0.13, PLE ‒ PLE 0.59, ALE ‒ PLE 0.07. OAW 0.77, CRW 1.44 , OAW/ CRW 0.53, MOA 0.35 long, anterior width 0.27, posterior width 0.35. CH 0.12, CH / AME 1.33 . Leg measurements: I 7.11 (2.09, 0.94, 1.77, 1.32, 1.00), II 6.52 (1.93, 0.98, 1.45, 1.28, 0.88), III 6.05 (1.78, 0.87, 1.18, 1.44, 0.78), IV 8.44 (2.39, 1.02, 1.78, 2.30, 0.94); leg formula 4123. Labium 0.49 long, 0.41 wide. Sternum 1.52 long, 1.31 wide. Leg spination: femora: Ⅰ d1-1-1, p0-0-1; II d1-1-1, p0-0-1; III d1-1-1, p0-1-1, r0-0-1; IV d1-1-1, p0-1-1, r0-0-1. Tibiae : Ⅰ v1-1-1; II v0-1-1; III: d1-0-0, p1-1-0, r1-1-0, v2-2-2; IV d1-0-0, p1-1-0, r1-1-0, v2-2-2. Metatarsi: Ⅰ v2-2-0; II v2-1-0; III d2-2-2, p1-1-1, r1-1-1, v2-2-2; IV d2-2-2, p1-1-1, r1-1-1, v2-2-2. Coloration like male .

Epigyne ( Fig. 3D‒E View FIGURE 3 ). Epigynal plate as long as wide. Posterior triangular atrium width about three times its length in ventral view. Primary spermatheca spherical, separated by about its diameter, secondary spermatheca similar in size to primary spermatheca. Copulatory duct rectangular, bending at median part. Anterior bursae oval. Connecting tubes flattened sac-like, inner margins converging in median section.

Distribution. China: Yunnan ( Fig. 9 View FIGURE 9 ).