Yaginumaella pulchella, Wang & Irfan & Peng, 2018

Li, Dan, Wang, Cheng, Irfan, Muhammad & Peng, Xian-Jin, 2018, Two new species of Yaginumaella (Araneae, Salticidae) from Wuling Mountain, China, European Journal of Taxonomy 488, pp. 1-10 : 2-5

Yaginumaella pulchella sp. nov.

urn:lsid:zoobank.org:act:84997381-7EE8-4A26-88B4-83B84881487B

Figs 1–2

Differential diagnosis

The new species resembles Y. falcata Zhu et al., 2005 , but can be distinguished by: (1) palpal bulbus about two times longer than wide ( Figs 1B , 2A ) vs about 1.3 times longer than wide in Y. falcata in ventral view, (2) embolus originating from the position of 9:00 o’clock ( Figs 1B , 2A ) vs 8:00 o’clock in Y. falcata in ventral view, (3) tibial apophysis almost straight ( Figs 1C , 2B ) vs distinctly recurved in Y. falcata in retrolateral view, (4) epigynal pockets below the copulatory opening ( Figs 1E , 2C ) vs almost equal to the copulatory opening in Y. falcata , and (5) the course of copulatory ducts also different ( Figs 1F , 2D ).

Etymology

The specific name comes from the Latin adjetive pulchellus, -a, -um (diminutive of pulcher), meaning “beautiful little”, and referring to the distinct marking on the dorsal side of the abdomen.

Type material

Holotype

CHINA:1 Ƌ, Hunan, Changde City, Shimen County, Hupingshan Township , Daling Village , 30°02´02″ N, 110°37´30″ E, 436 m a.s.l., 20 Oct. 2014, Cheng Wang, Bing Zhou, Jiahui Zhou, and Yuhui Gong leg. (HNU-HN-IV-1417-02).

Paratype

CHINA: 1 ♀, Hunan, Changde City, Shimen County, Hupingshan Township, Daling Village, 30°02´02″ N, 110°37´30″ E, 436 m a.s.l., 20 Oct. 2014, Cheng Wang, Bing Zhou, Jiahui Zhou, and Yuhui Gong leg. (HNU-HN-IV-1417-02).

Description

Male (holotype)

Total length 6.08 mm. Cephalothorax 3.01 × 2.04 mm. Abdomen 2.08 l × 1.91 mm. Eye sizes and interdistances:AME 0.67 mm, ALE 0.37 mm, PLE 0.39 mm,AER 2.07 mm, PER 1.95 mm, EFL 1.41 mm. Carapace brown to orange in color followed by a pair of longitudinal white hairs band on lateral sides; median ocular area provided with a round patch of white hairs. Basal area of each eye, anterior, and lateral margins of ocular area black with black hairs. Thoracic region flat. Fovea short and longitudinal. Chelicerae yellowish-brown, two pro-marginal and one retro-marginal tooth. Endites longer than wide, yellowish-brown. Labium ligulate with thick hairs, terminal area lightly colored. Sternum almost oval, covered with yellow hairs. Legs yellowish-brown, terminal areas darker in I and II. Measurements of legs: I 6.70 mm (2.10 mm, 2.75 mm, 1.15 mm, 0.70 mm), II 5.61 mm (1.71 mm, 2.18 mm, 1.02 mm, 0.70 mm), III 6.37 mm (2.04 mm, 2.20 mm, 1.31 mm, 0.82 mm), IV 6.54 mm (2.12 mm, 2.30 mm, 1.39 mm, 0.83 mm). Leg formula: 1432. Abdomen oval, yellowish-green with lighter yellowish central area, followed by the longitudinal greenish band on lateral areas and transversally in the posterior, muscular impressions distinct, posterior area with a pair of white circular patches, lateral areas scattered with three pairs of small white patches. Venter light yellow, scattered with black patches, median area with one longitudinal dark brown stripe. Palp ( Figs 1 B–C, 2A–B): tibia longer than wide, terminal part of the tibial apophysis recurved in retrolateral view. Palpal bulbus with a membranous structure at the center. Embolus almost as long as palpal bulbus, originated from the position of 9:00 o’clock. Palpal bulbus about two times longer than wide in ventral view. Sperm duct robust.

Female (paratype)

Total length 5.38 mm. Cephalothorax 2.57 × 1.48 mm. Abdomen 2.71 × 1.86 mm. Clypeus height 0.13 mm. Eye sizes and interdistances: AME 0.57 mm, ALE 0.34 mm, PLE 0.33 mm, AER 1.81 mm, PER 1.67 mm, EFL 1.29 mm. Carapace similar to male but slightly more reddish, with two longitudinal white stripes at the lateral sides and, a centeral white band extending from the posterior margin of ocular area to the posterior margin of carapace. Legs pale yellow, terminal areas darker with annuli in III and IV. Measurements of legs: I 4.31 mm (1.51 mm, 1.54 mm, 0.66 mm, 0.60 mm), II 4.38 mm (1.52 mm, 1.61 mm, 0.65 mm, 0.60 mm), III 5.31 mm (1.70 mm, 1.75 mm, 1.05 mm, 0.81 mm), IV 5.53 mm (1.65 mm, 1.82 mm, 1.25 mm, 0.81 mm). Leg formula: 4321. The morphological characters of abdomen as same as in male except darker in color. Epigyne ( Figs 1 E–F, 2C–D): epigynal pockets present ventromesially. Copulatory opening almost slit-shaped. Copulatory ducts short and stout.

Distribution

Hunan ( China) ( Fig. 3 ).

Figures

Fig. 1. Yaginumaella pulchella sp. nov. A–C. Holotype, Ƌ (HNU-HN-IV-1417-02). D–F. Paratype, ♀ (HNU-HN-IV-1417-02). A. Male body, dorsal view. B. Male palp, ventral view. C. Male palp, retrolateral view. D. Female body, dorsal view. E. Epigyne, ventral view. F. Vulva, dorsal view. Scale bars: A, D = 1 mm; B–C, E–F = 0.2 mm.

Fig. 2. Yaginumaella pulchella sp. nov. A–B. Ƌ, HNU-HN-IV-1417-02. C–D. ♀, HNU-HN-IV-1417-02. A. Male palp, ventral view. B. Male palp, retrolateral view. C. Epigyne, ventral view. D. Vulva, dorsal view. Scale bars: 0.2 mm.

Fig. 3. Distribution records of Yaginumaella hubeiensis sp. nov. (red triangles) and Y. pulchella sp. nov. (green dot).