Passiena spinicrus Thorell, 1890

Tan, Bing, Irfan, Muhammad, Zhang, Zhi-Sheng & Wang, Lu-Yu, 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, pp. 1-9 : 1

Passiena spinicrus Thorell, 1890

Figs 1C, D , 4 , 5

Passiena spinicrus Thorell, 1890: 140 (♀); Lehtinen 2005: 402, figs 5-10 (♀); Omelko and Marusik 2020: 480, figs 6, 15, 18, 35 (♀).

Material examined.

Malaysia: 6 males and 4 females, Borneo, Sabah, Trus Madi Mountain , 5.4669°N, 116.4488°E, elev. 760 m, 12 October 2015, G.Q. Huang and L.Y. Wang leg. (MLXY-15-15) ; 2 males and 1 female, Borneo, Sabah, Keningau , apin-apin, 5.4669°N, 116.2752°E, elev. 346 m, 17 October 2015, G.Q. Huang and L.Y. Wang leg. (MLXY-15-25) ; 4 males and 5 females, Borneo, Kalabakan, Maliau Basin , 4.54°N, 117.0272°E, elev. 321 m, 18 October 2015, G.Q. Huang and L.Y. Wang leg. (MLXY-15-29) ; 1 male and 1 female, Borneo, Sabah, Sandakan , 5.8788°N, 118.0536°E, elev. 41 m, 19 October 2015, G.Q. Huang and L.Y. Wang leg. (MLXY-15-35) .

Description.

Male (Figs 1C , 4A ) total length 3.91. Prosoma 2.16 long, 1.61 wide; opisthosoma 1.74 long, 1.02 wide. Carapace gray brown. Eye sizes and interdistances: AME 0.12, ALE 0.08, PME 0.34, PLE 0.28; AME-AME 0.10, AME-ALE 0.06, PME-PME 0.34, PME-PLE 0.37. Clypeus height 0.24. Chelicerae black brown, with three promarginal and three retromarginal teeth. Endites and labium black brown, longer than wide. Sternum yellow brown, with sparse brown hairs. Legs yellow brown. 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. Leg measurements: I 6.63 (1.65, 2.39, 1.69, 0.90); II 5.98 (1.66, 1.99, 1.54, 0.79); III 5.75 (1.55, 1.82, 1.60, 0.78); IV 8.87 (2.22, 2.59, 2.87, 1.19). Leg formula: 4123. Opisthosoma oval. Dorsum greyish brown, with black markings. Venter yellow brown.

Pedipalp (Fig. 4C-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 and 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 ax-shaped, and the posterior apex strongly curved.

Female (Figs 1D , 4B ) total length 4.21. Prosoma 2.20 long, 1.77 wide; opisthosoma 1.89 long, 1.23 wide. Eye sizes and interdistances: AME 0.12, ALE 0.09, PME 0.33, PLE 0.29; AME-AME 0.08, AME-ALE 0.05, PME-PME 0.32, PME-PLE 0.37. Clypeus height 0.21. Legs yellow brown. 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 three pairs of ventral spines. Leg measurements: I 6.96 (1.92, 2.56, 1.66, 0.82); II 6.36 (1.77, 2.19, 1.57, 0.83); III 6.02 (1.64, 1.89, 1.68, 0.81); IV 9.04 (2.38, 2.56, 2.87, 1.23). Leg formula: 4123.

Epigyne (Fig. 4H, I ). Anterior pocket with 2 hoods, septum reversed T-shaped with distinct stem becoming very thick in its anterior part and narrow at the center. Copulatory openings located posteriorly at the base of atrium transverse edges. Spermathecal heads globular with the antero-lateral part angled, heads 2 times longer than septum base. Spermathecal stalks thick, short, slightly curved. Fertilization ducts extending postero-laterally.

Distribution.

Malaysia, Indonesia (Borneo) (Fig. 5 ).

Figures

Figure 1. Live photo of Passiena duani sp. nov. (A, B) and P. spinicrus Thorell, 1890 (C, D) A, C male B, D female. Live photos taken by Qian-Le Lu (A, B) and Lu-Yu Wang (C, D).

Figure 4. Passiena spinicrus Thorell, 1890, male (A, C-G) and female (B, H, I). A male habitus, dorsal view B female habitus, dorsal view C bulb, ventral view D same, retrolateral view E pedipalp, ventral view F same, retrolateral view G embolic division, ventral view H epigyne, ventral view I same, dorsal view.

Figure 5. Map showing distribution records of Passiena duani sp. nov. and P. spinicrus Thorell, 1890.