Solenysa lanyuensis Tu, 2011

Ballarin, Francesco, Liao, Hauchuan, Touyama, Zento & Eguchi, Katsuyuki, 2025, Review of the spider genus Solenysa Simon, 1894 in Western Japan and Central Ryukyu with the description of three new species (Araneae, Linyphiidae), ZooKeys 1232, pp. 97-130 : 97-130

Solenysa lanyuensis Tu, 2011

Solenysa protrudens Tu in Tu and Li, 2006: 94, figs 31-39 (♂ ♀, misidentified).

S. lanyuensis : Tu and Hormiga 2011: 515, fig. 7 C (♂ ♀).

Type locality.

Lanyu Island (= Orchid Island), Taitung County, Taiwan (see remarks)

Diagnosis.

See Tu and Li (2006)

Description.

See Tu and Li (2006)

Remarks.

The type series of S. lanyuensis (3 ♂ and 2 ♀) was originally misidentified as S. protrudens by Tu and Li (2006). Later, S. lanyuensis was recognized as a new species and described based on the same specimens by Tu and Hormiga (2011). The coordinates of the type locality reported by both Tu and Li (2006) and Tu and Hormiga (2011) refer to a coastal area in southeast Taiwan and are likely incorrect since the name of the locality, from which the species also takes its name, refer to Lanyu, a small volcanic island located ca. 75 km far from the Taiwanese coast. The exact collecting location of the type series on the island remains unknown. In 2019, we had the opportunity to conduct an extensive survey on Lanyu Island, which led to the discovery of several rare litter-dwelling spiders, including linyphiids ( Ballarin et al. 2021). However, despite our extensive collecting effort, we failed to find any specimens of Solenysa on the island. As far as we know, this species remains recorded only from two localities, Lanyu Island from the original description and the location in central Taiwan reported by Tian et al. (2022, reported in the map but locality not specified). Additional collection in southwest Taiwan may help to clarify the distribution of this species.

Other comparative material examined

Solenysa mellotteei Simon, 1894 : Japan: Tokyo Pref., 1 ♂, 1 ♀, Hachioji City, Naganumamachi, Naganuma Park (長沼公園), 150 m, 35.637°N, 139.368°E, forest leaf litter on a slope, 07. Aug. 2019, F. Ballarin leg. ( FBPC).

Solenysa ogatai Ono, 2011 : Japan: Shizuoka Pref., 1 ♂, Fujinomiya City, Nukudo, Hoshiyama, Myojoyama Park (明星山公園), 17. Nov. 2014, A. Tanikawa leg. ( FBPC) • Kanagawa Pref., 1 ♂, 1 ♀, Ashigarashimo-gun, Manazaru, Manatsuru cape, 90 m, 35.14409°N, 139.15556°E, thick leaf litter in a primary forest, 28. Jul. 2021, F. Ballarin leg. ( FBPC).