Passiena duani
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Ordo: Araneae
Familia: Lycosidae
Genus: Passiena
Name
Passiena duani sp. nov. (段氏帕狼蛛) – Wikispecies link – ZooBank link – Pensoft Profile
Type material
Holotype (male): China, Guangxi Zhuang Autonomous Region, Chongzuo City, Ningming County, Chengzhong Town, Panlong, 22.2347°N, 107.0538°E, elev. 138 m, 25 April 2023, L.Y. Wang and Q.L. Lu leg. (SWUC-T-LY-13-01); Paratypes (3 males and 4 females): 2 males and 3 females, same data as holotype; 1 male and 1 female (SWUC-T-LY-13-07~08), Ningming County, Tuolong Township, Nongna Village, 22.2325°N, 107.0558°E, elev. 152 m, 19 June 2017, L.Y. Wang and R.B. Wu leg. (SWUC-T-LY-13-02~06).
Etymology
The specific name comes from the family name of Dr Meichun Duan, who gave much support to our research on spiders; noun in apposition.
Diagnosis
The new species resembles P. bayi Omelko & Marusik, 2020, P. torbjoerni Lehtinen, 2005 (Figs 2A–D, 3C–I; Omelko and Marusik 2020[1], figs 19–29) and P. spinicrus Thorell, 1890 (4C–I) in having similar median apophysis and terminal apophysis of the male pedipalp and variable sclerotization of the lateral plates at the base of the epigyne (Figs 2A–D, 3C–I, 4C–I; Omelko and Marusik 2020[1], figs 30–35). However, it can be distinguished by the combination of the following characters: 1) apical edge of anterior apophysis of palea as long as the stalk of posterior apophysis of palea (Fig. 3G) vs. about half the length of the stalk of posterior apophysis of palea in P. bayi, P. torbjoerni and P. spinicrus (Omelko and Marusik 2020[1], figs 25, 26; Fig. 4G); 2) cymbium apex with two claws (Fig. 3G) vs. with one claw in P. bayi, P. torbjoerni and P. spinicrus (Omelko and Marusik 2020[1], figs 27, 28; Fig. 4G); and 3) epigynal septum stem length/septum base width ratio 1.2 in P. duani sp. nov. and P. torbjoerni (Figs 2C, D, 3H, I; Omelko and Marusik 2020[1], figs 33, 34) vs. septum stem length/septum base width ratio 1.5 in P. bayi (Omelko and Marusik 2020[1], figs 30, 31) and P. spinicrus (Fig. 4H, I).
Description
Male (holotype, Fig. 1A, 3A). Total length 4.08. Prosoma 2.05 long, 1.59 wide; opisthosoma 1.98 long, 1.30 wide. Carapace greyish brown. Eye sizes and interdistances: AME 0.09, ALE 0.07, PME 0.30, PLE 0.25; AME–AME 0.09, AME–ALE 0.04, PME–PME 0.33, PME–PLE 0.32. Clypeus height 0.18. Chelicerae dark brown, with three promarginal and three retromarginal teeth. Endites and labium dark brown, longer than wide. Sternum yellow brown, with sparse brown setae. Legs yellow brown. Tibia I with six pairs of ventral spines and metatarsus I with four pairs of ventral spines; tibia II with five pairs of ventral spines, metatarsus II with three pairs of ventral spines. Leg measurements: I 6.14 (1.63, 2.21, 1.48, 0.82); II 5.47 (1.54, 1.79, 1.36, 0.78); III 5.23 (1.46, 1.57, 1.43, 0.77); IV 8.02 (2.07, 2.38, 2.49, 1.08). Leg formula: 4123. Opisthosoma oval. Dorsum greyish brown, with black markings. Venter yellow brown. Pedipalp (Figs 2A, B, 3C–G): Cymbium proximal part brown, distal part yellowish with two large claws on the tip. Subtegulum distinct in ventral view, located baso-prolaterally. Conductor somewhat membranous, somewhat tongue-shaped in ventral view and triangular in retrolateral view. Terminal apophysis terminates at approx. 1 o’clock position in ventral view. Embolus originating on the dorsal side of the bulb, long, prolaterally accompanied with a membrane, terminating at approx. 2 o’clock position; palea with two apophyses, anterior apophysis with smooth apical edge sharply pointed, and posterior one claw-like. Female (one paratype, SWUC-T-LY-13-02, Fig. 1B, 3B). Total length 4.57. Prosoma 2.36 long, 1.83 wide; opisthosoma 2.28 long, 1.65 wide. Eye sizes and interdistances: AME 0.12, ALE 0.09, PME 0.35, PLE 0.27; AME–AME 0.10, AME–ALE 0.07, PME–PME 0.33, PME–PLE 0.38. Clypeus height 0.23. Leg measurements: I 6.87 (1.92, 2.43, 1.65, 0.87); II 6.12 (1.58, 2.18, 1.53, 0.83); III 5.96 (1.68, 1.77, 1.70, 0.81); IV 9.28 (2.28, 2.75, 2.98, 1.27). Leg formula: 4123. Tibia I with six pairs of ventral spines and metatarsus I with four pairs of ventral spines; tibia II with six pairs of ventral spines, metatarsus II with four pairs of ventral spines. Except genitalia, all other morphological characteristics same as in male.
Epigyne (Figs 2C–D, 3H–I). Anterior pocket with 2 hoods, septum reversed T-shaped with distinct stem becoming very thick in its anterior part and narrow posteriorly; stem 1.2 times longer than base width. Copulatory openings located posteriorly at the base of atrium transverse edges. Spermathecal heads sub-oval with the antero-lateral part angled, heads 2 times longer than septum base. Spermathecal stalks thick, short, slightly curved. Fertilization ducts teardrop-shaped.
Distribution
Currently known only from the type locality, Ningming County, Guangxi, China (Fig. 5).
Taxon Treatment
- Tan, B; Irfan, M; Zhang, Z; Wang, L; 2023: First record of the genus Passiena (Araneae, Lycosidae) from China, with the first description of the male of P. spinicrus Thorell, 1890 from Malaysia ZooKeys, 1182: 1-9. doi
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