Vietnagone rugulosa ( Song & Li, 2010 ) Tanasevitch, 2019

Tanasevitch, Andrei V., 2019, A new genus and two new species of linyphiid spiders (Arachnida: Araneae) from Vietnam, Raffles Bulletin of Zoology 67, pp. 129-134 : 130

Vietnagone rugulosa ( Song & Li, 2010) , new combination

Gongylidium rugulosum Song & Li, 2010: 707 , figs.18–39, male and female.

Remarks. Vietnagone rugulosa ( Song & Li, 2010) , new combination was originally described in Gongylidium Menge, 1868 , from Bome and Nyingchi counties of Tibet ( Song & Li, 2010). The structure of the palp, namely, the modified palpal tibia, the presence of a convector (in the original description referred to as “lamella”), the relatively short and looped embolus, as well as the same chaeto- and trichobothriotaxy, all support the assignment of Gongylidium rugulosum Song & Li, 2010 to Vietnagone , new genus. This species is similar to V. silvatica , new species, but differs by the shape of the palpal tibia in the male ( Figs. 7–9 cf. Figs. 19 –21 in Song & Li, 2010), as well as by the non-projecting epigyne, the much longer copulatory ducts and their arrangement ( Figs. 12, 13 cf. Figs. 50–54, 56 in Song & Li, 2010).

Distribution. Known from southeastern Tibet ( Song & Li, 2010).

Figures

Figs. 7–13. Details of palpal and epigynal structure of Vietnagone silvatica, new species. 7–10, male holotype; 12, 13, female paratype. 7, left palp, retrolateral view; 8, 9, palpal tibia, prolateral and dorsal views, respectively; 10, distal suprategular apophysis, lateral view; 11, embolic division; 12, 13, epigyne, ventral and dorsal views, respectively.

Figs. 14–20. Details of palpal and epigynal structure of Nasoonaria pseudoembolica, new species. 14–17, male holotype; 18–20, female paratype. 14, 15, right palp, retrolateral and prolateral views, respectively; 16, palpal tibia, dorsal view; 17, embolic division; 18, 19, epigyne, ventral views, different aspects; 20, epigyne, dorsal view.