Yaginumaella hagiang, Wang & Li & Pham, 2023

Wang, Cheng, Li, Shuqiang & Pham, Dinh-Sac, 2023, Thirteen species of jumping spiders from northern Vietnam (Araneae, Salticidae), ZooKeys 1148, pp. 119-165 : 119

Yaginumaella hagiang sp. nov.

Figs 22 , 23

Type material.

Holotype ♂ (IZCAS-Ar44294), Vietnam: Ha Giang Province: Ha Giang National Forest, 14.VII.2002, D.S. Pham leg. Paratype 1♂ (IZCAS-Ar44295), same data as holotype.

Etymology.

The species is named after the type locality; noun in apposition.

Diagnosis.

Yaginumaella hagiang sp. nov. closely resembles Y. orthomargina Shao, Li & Yang, 2014 in having a very similar palpal structure, but it can be distinguished by the following: (1) the tip of embolic division is directed prolaterally (Fig. 22C ), whereas it is directed anteriorly in Y. orthomargina ( Shao et al. 2014: fig. 10); (2) the RTA is slightly curved towards the dorsal side distally in retrolateral view (Fig. 22B ), whereas it is straight in Y. orthomargina ( Shao et al. 2014: fig. 11).

Description.

Male (Figs 22 , 23 ). Total length 4.43. Carapace 2.24 long, 1.59 wide. Abdomen 2.27 long, 1.53 wide. Clypeus 0.10 high. Eye sizes and inter-distances: AME 0.43, ALE 0.27, PLE 0.25, AERW 1.39, PERW 1.39, EFL 0.94. Legs: I 4.41 (1.33, 0.70, 1.03, 0.75, 0.60), II 3.72 (1.05, 0.68, 0.83, 0.63, 0.53), III 4.37 (1.30, 0.63, 0.90, 1.01, 0.53), IV 4.50 (1.30, 0.63, 1.01, 1.01, 0.55). Carapace red-brown, setose, with indistinct patches medially on eye field; fovea dark, longitudinal, linear. Chelicerae red-brown, with two promarginal teeth and one retromarginal tooth. Endites colored as chelicerae, broadened distally. Labium tapered, darker than endites. Sternum yellow to red-brown, covered with brown setae. Legs yellow to red-brown, spinous. Abdomen elongate-oval, dorsum pale to yellow, covered with large scutum extending from anterior margin to posterior 3/4, and ~ 1/2 the abdominal width; venter pale, dotted. Palp: (Fig. 22A-D ): tibia slightly longer than wide in retrolateral view, with broad retrolateral apophysis ~ 2/3 of its length, slightly curved distally, with pointed tip; cymbium setose; bulb swollen, with sperm duct extending along margin; embolus originates from 9 o’clock position on bulb, slightly curved medially, with strongly sclerotized, hook-shaped division.

Female. Unknown.

Distribution.

Only known from the type locality in Ha Giang Province, Vietnam.

Comments.

The species is known only from males, but there are no other congeners known only from single females distributed in the nearby area, so, there is a very small possibility that the species belongs to a species that is already described only known from females. Thus, we describe it as new herein.

Figures

Figure 22. Male palp of Yaginumaella hagiang sp. nov., holotype A prolateral B retrolateral C ventral D dorsal. Scale bars: 0.1 mm. Abbreviations: E - embolus; ED - embolic division; RTA - retrolateral tibial apophysis; SD - sperm duct.

Figure 23. Yaginumaella hagiang sp. nov., holotype A habitus, dorsal B ditto, ventral C carapace, frontal D chelicera, posterior. Scale bars: 0.1 mm (D); 0.5 mm (A-C).