Auricula, Irfan & Zhang & Peng, 2022

Irfan, Muhammad, Zhang, Zhi-Sheng & Peng, Xian-Jin, 2022, Survey of Linyphiidae (Arachnida: Araneae) spiders from Yunnan, China, Megataxa 8 (1), pp. 1-292 : 20

publication ID	https://doi.org/10.11646/megataxa.8.1.1
DOI	https://doi.org/10.5281/zenodo.7573951
persistent identifier	https://treatment.plazi.org/id/03AE87CE-BD41-FF80-FC1C-39FFFB8AFB87
treatment provided by	Plazi (2023-01-11 20:01:21, last updated 2024-11-28 12:31:43)
scientific name	Auricula
status	gen. nov.

Treatment

Auricula gen. nov. (ĄḋƦø)

Type species: Auricula triangulara sp. nov. (ΞssĄḋƦ)

Etymology. The genus name comes from the Latin noun “ Auricula ”, meaning “lobe” and referring to the cephalic lobe in male. Gender is masculine.

Diagnosis. Auricula gen. nov. can be distinguished from any other Erigoninae genus by cephalic region of male with cephalic lobe ( Figs 19B View FIGURE 19 , 28B View FIGURE 28 ); tibia with a long, broad reterolateral tibial apophysis, overlapping the basal part of cymbium in reterolateral view ( Figs 17B–D View FIGURE 17 , 24B–D View FIGURE 24 ), protegulum long, transparent, distal end curved, protruding above the apex of cymbium ( Figs 17B, D View FIGURE 17 , 24B, D View FIGURE 24 ); terminal apophysis robust, J-shaped ( Figs 17A, B, D View FIGURE 17 , 24A, B, D View FIGURE 24 ), radix with anterior radial process, hidden on unexpanded palp ( Figs 17A, B, D View FIGURE 17 , 24A, B, D View FIGURE 24 , 25A–D View FIGURE 25 ). Epigyne resembles that of the genus Gongylidioides Oi, 1960 in having the similar copulatory ducts ( Figs 18A–C View FIGURE 18 , 20A–C View FIGURE 20 , 22A–C View FIGURE 22 , 27A–C View FIGURE 27 ; Tu and Li, 2006, figs 1–4, 6) and the dorsal and ventral plates connected posteriorly, but can be distinguished by the the dorsal plate with a depression mesally ( Figs 18A–C View FIGURE 18 , 20A–C View FIGURE 20 , 22A–C View FIGURE 22 , 27A– C View FIGURE 27 ): Copulatory openings present at the base of septum posteriorly ( Figs 20A, B View FIGURE 20 , 22A, B View FIGURE 22 , 27A, B View FIGURE 27 ), except in Auricula aeda sp. nov. copulatory openings present ventro-laterally ( Fig. 18A, B View FIGURE 18 ).

References

Oi, R. (1960) Linyphiid spiders of Japan. Journal of the Institute of Polytechnics Osaka City University, 11 (D), 137 - 244.

Tu, L. H. & Li, S. Q. (2006 b) A review of Gongylidioides spiders (Araneae, Linyphiidae, Erigoninae) from China. Revue Suisse de Zoologie, 113 (1), 51 - 65. https: // doi. org / 10.5962 / bhl. part. 80339

Figures

FIGURE 17. Auricula aeda sp. nov., male palp of holotype. A prolateral view B retrolateral view C dorsal view D ventral view.

FIGURE 18. Auricula aeda sp. nov., female (one of paratypes). A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 19. Auricula aeda sp. nov., male holotype (A–C, F) and female (one of paratypes, D, E). A, D Habitus, dorsal view B Habitus, lateral view C, E Habitus, ventral view F Habitus, frontal view (white arrows indicating the cephalic secretions dried out in the cephalic pits and the area around the base of cephalic lobe).

FIGURE 20. Auricula rutunda sp. nov., female holotype. A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 22. Auricula sanchaheensis sp. nov., female holotype. A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 24. Auricula triangulara sp. nov., male palp of holotype. A prolateral view B retrolateral view C dorsal view D ventral view.

FIGURE 25. Auricula triangulara sp. nov., male (one of paratypes). A–D Embolic division.

FIGURE 27. Auricula triangulara sp. nov., female (one of paratypes). A, B Epigyne, ventral view C Vulva, dorsal view.

FIGURE 28. Auricula triangulara sp. nov., male holotype (A–C) and female (one of paratypes, D–F). A, D Habitus, dorsal view B, E Habitus, lateral view C, F Habitus, ventral view.