Himalaphantes lingulatus, Zhang & Liu & Irfan & Peng, 2022

Zhang, Meng-ting, Liu, Ping, Irfan, Muhammad & Peng, Xian-jin, 2022, A survey of the genus Himalaphantes Tanasevitch, 1992 (Araneae, Linyphiidae) with description of three new species from Yunnan, China, ZooKeys 1123, pp. 47-62 : 47

Himalaphantes lingulatus sp. nov.

Figs 3 , 4 , 5 , 6 , 10

Type material.

Holotype ♂: China, Yunnan Province: Baoshan City, Yakou Village, 24.4372°N, 98.4605°E, 2186 m, 31.X.2003, Guo Tang leg. (Tang031031). Paratypes: 1♂22♀♀, same data as holotype (Tang031031).

Etymology.

The specific epithet is derived from the Latin adjective " lingulate " (tongue-shaped), referring to the tongue-shaped stretcher.

Diagnosis.

This new species resembles H. grandiculus ( Tanasevitch 1987: figs 2, 4-7, 10-12, 1992: fig. 3a-c) but can be distinguished by the following characters: (1) distal end of proximal cymbial apophysis depression medially in H. lingulatus sp. nov. (Fig. 4A ), whereas rounded in H. grandiculus ( Tanasevitch 1992: fig. 11); (2) distal branch of paracymbium near cymbiform in ventro-retrolateral view and with three teeth at midlength in H. lingulatus sp. nov. (Fig. 4B ), whereas near flag-shaped and with one tooth in H. grandiculus ( Tanasevitch 1987: fig. 2); (3) distal end of embolus blunt and curved in H. lingulatus sp. nov. (Fig. 3A ), whereas pointed and straight in H. grandiculus ( Tanasevitch 1992: fig. 3a); (4) stretcher about one-quarter width of scapus in H. lingulatus sp. nov. (Fig. 5A ), whereas about one-fifth width of scapus in H. grandiculus ( Tanasevitch 1987: fig. 4); (5) shape of anterior and lateral margins of epigyne arched in H. lingulatus sp. nov. (Fig. 5A ); whereas varies from rounded to angular in H. grandiculus ( Tanasevitch 1992: figs 4, 6)

Description.

Male (holotype) (Fig. 6A, B ). Total length 3.59. Carapace 1.41 long, 1.18 wide, yellowish brown, with a brown longitudinal band medially, lateral sides brown, cephalic region slightly elevated, fovea, cervical and radial grooves distinct; clypeus 0.20 high. Sternum scutiform, yellowish brown with dark margin. Endites yellow, distal end broad with scopulae. Labium wider than long, yellowish brown. Chelicerae yellowish brown, with three promarginal and four retromarginal teeth. Eye sizes and interdistances: AME: 0.09, ALE: 0.11, PME: 0.12, PLE: 0.09, AME-AME: 0.04, AME-ALE: 0.05, PME-PME: 0.06, PME-PLE: 0.08, ALE-PLE: 0.06. Legs yellow with dark annuli. Spines: femur I: 0-1-0-0, II-IV: 0-0-0-0; tibia I: 2-2-1-2, II: 2-0-1-2 III-IV 2-0-1-1; metatarsus I-IV: 1-1-1-0. Leg measurements: I, 11.5 (2.68, 3.66, 3.54, 1.62); II, 8.89 (2.46, 2.61, 2.60, 1.22); III, 7.43 (1.27, 2.49, 2.41, 1.26); IV, 7.42 (2.60, 1.60, 2.27, 0.95); leg formula 1234. Abdomen 1.83 long, 0.88 wide, oval, yellow, dorsum with a dark longitudinal band and light spots dispersed anteriorly, dark herringbones posteriorly; ventral yellow, with lots of irregular dark or light patches.

Palp (Figs 3A, B , 4A-D ). Tibia longer than wide. Cymbium longer than wide, median part of prolateral side bulged, proximal cymbial apophysis columnar, distal end as wide as base, with a shallow depression medially. Paracymbium sclerotized, apical pocket near cymbiform in in ventro-retrolateral and prolateral view, anterior pocket unmodified with smooth margin, posterior pocket with three teeth. Distal suprategular apophysis C-shaped, with pointed tip in retrolateral view. Radix longer than wide. Fickert’s gland present within radix. Lamella characteristically S-shaped, with V-shaped tip. Median membrane wider than long. Terminal apophysis proximally strongly sclerotized and distal end relatively membranous. Embolus broad and extending upwards, with curved and blunt end.

Female (one paratype of Tang031031) (Fig. 6C, D ). Total length 3.99. Carapace 1.51 long, 1.22 wide, cervical and radial grooves indistinct; clypeus 0.25 high. Chelicerae with four promarginal and five retromarginal teeth. Eye sizes and interdistances: AME: 0.11, ALE: 0.13, PME: 0.12, PLE: 0.10, AME-AME: 0.03, AME-ALE: 0.04, PME-PME: 0.05, PME-PLE: 0.05, ALE-PLE: 0.02. Spines: femur I: 1-1-0-0, II-IV: 1-0-0-0; tibia I: 2-2-2-2, II: 2-1-2-2, III: 2-2-1-1, IV: 2-2-2-1; metatarsus I-IV: 1-1-1-0. Leg measurements: I, 6.84 (1.79, 2.78, 1.28, 0.99); II, 6.61 (1.92, 2.32, 1.32, 1.05); III, 5.43 (1.64, 1.57, 1.42, 0.80); IV, 6.01 (2.06, 2.10, 1.08, 0.77); leg formula 1243. Abdomen 2.42 long, 1.67 wide. Patterns same as in male, but darkly colored.

Epigyne (Fig. 5A-C ). Wider than long, proscapus wider than long, posterior margin with a deep depression medially, each side with a small protuberance; stretcher much longer than wide in dorsal view, tongue-shaped with rounded end. Posterior median plate somewhat oval. Copulatory opening present in lateral pockets at the middle of proscapus posteriorly. Copulatory ducts short, slightly curved. Spermathecae tubular and sinuous.

Distribution.

Known only from the type locality (Fig. 10 ).

Figures

Figure 3. A, B Himalaphantes lingulatus sp. nov., holotype ♂ C, D Himalaphantes uncatus sp. nov., holotype ♂ A, C embolic division, prolateral view B, D embolus, retrolateral view.

Figure 4. Himalaphantes lingulatus sp. nov., holotype ♂ A palp, prolateral view B palp, retrolateral view C palp, dorsal view D palp, ventral view.

Figure 5. Himalaphantes lingulatus sp. nov., paratype ♀ A, B epigyne, ventral view C epigyne, dorsal view.

Figure 6. Himalaphantes lingulatus sp. nov., holotype ♂ and paratype ♀ A habitus, dorsal view B habitus, ventral view C habitus, dorsal view D habitus, ventral view.

Figure 10. Type localities of Himalaphantes arcuatus sp. nov., Himalaphantes lingulatus sp. nov. and Himalaphantes uncatus sp. nov.