Solenysa trunciformis Wang, Ono & Tu, 2015

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

publication ID

https://doi.org/10.3897/zookeys.1232.142629

publication LSID

lsid:zoobank.org:pub:322DDAEF-972B-4D0A-A4F7-C94F029DC196

DOI

https://doi.org/10.5281/zenodo.15041786

persistent identifier

https://treatment.plazi.org/id/065F8CA6-9719-578F-9EBD-2BAFEB12145A

treatment provided by

ZooKeys by Pensoft

scientific name

Solenysa trunciformis Wang, Ono & Tu, 2015
status

 

Solenysa trunciformis Wang, Ono & Tu, 2015 View in CoL

Figs 8 A-J View Figure 8 , 11 E, F View Figure 11

Solenysa mellotteei View in CoL : Tu and Li 2006: 91, figs 21–30 (♂ ♀, misidentified per Wang et al. 2015: 54 View Cited Treatment ); Tu and Hormiga 2011: 499, figs 7 B, 11 H (♂ ♀, misidentified per Wang et al. 2015: 54 View Cited Treatment ).

S. trunciformis Wang et al., 2015: 54, figs 1 A – D, 3 B, 5 E, F (♂ ♀). View in CoL View Cited Treatment

Material examined.

Japan: Shikoku Is., Tokushima Pref., • 3 ♂, 7 ♀, Myozai District, Kamiyama Town, Ano, Nashinoki-Toge pass , 11. Oct. 1999, 33.91391°N, 134.28702°E, H. Bando leg. ( TKPM) GoogleMaps 2 ♂, 3 ♀, Mima City, Tsurugi Town, Ichu, Tachinomoto , 33.94936°N, 134.06863°E, 1. Jan. 2010, H. Bando leg. ( TKPM) GoogleMaps 1 ♂, 5 ♀ (identified as S. reflexilis in Bando 2015), Anan City, Kamo Town, Omatsu-daigongen , 33.91466°N, 134.55208°E, 29. Aug. 2013, H. Bando leg. ( TKPM) GoogleMaps 1 ♀ (identified as S. reflexilis in Bando 2015), Anan City, Tsubachi Town, Toyono , 33.82427°N, 134.64894°E, 23. Sep. 2013, H. Bando leg. ( TKPM) GoogleMaps 1 ♂, 1 ♀, Anan City, Asebi Town, Arita, along road n ° 28 , 33.87834°N, 134.55234°E, in the litter in a forest of sugi trees ( Cryptomeria japonica ), 15. May. 2019, F. Ballarin, T. and Yamasaki leg. ( FBPC) GoogleMaps 1 ♂, 7 ♀, Tokushima City, Kamihachiman Town, Tatsumiyama , 34.01891°N, 134.51008°E, 18. Sep. 2024, Y. Suzuki leg. ( TKPM) GoogleMaps Kochi Pref., 1 ♀, Muroto Peninsula, Motootsu , 243 m, 33.31339°N, 134.12262°E, deciduous forest leaf litter, 01. Mar. 2022, F. Ballarin leg. ( FBPC) GoogleMaps 1 ♂, Tosa City, Usachoryu , 33.42255°N, 133.45036°E, 15. Sep. 2023, Y. Tsuji leg. ( TKPM) GoogleMaps 1 ♂, Shimanto City, Gudo , 32.99045°N, 132.91411°E, 12. Jul. 2023, Y. Tsuji leg. ( TKPM) GoogleMaps Okayama Pref., 1 ♂, Maniwa City, Shimoazae, near the entrance of Suwa-do cave (諏訪洞), 183 m, 34.97021°N, 133.62441°E, in the leaf litter of a deciduous forest 20. Apr. 2019, F. Ballarin and T. Yamasaki leg. ( FBPC) GoogleMaps 1 ♂, 1 ♀, Niimi City, Toyonagauyama, Safushi river’s valley (佐伏川), 254 m, 34.93934°N, 133.56580°E, in the litter of a deciduous forest on a very steep slope, 21. Apr. 2019, F. Ballarin and T. Yamasaki leg. ( MNHAH) GoogleMaps 1 ♀, Takahashi City, Kawakami Town, Kōyamaichi, Anatoyama Shrine (穴門山神社), 454 m, 34.74384°N, 133.39246°E, under stones near the shrine, 22. Apr. 2019, F. Ballarin and T. Yamasaki leg. ( FBPC) GoogleMaps .

Diagnosis.

See Wang et al. (2015).

Description.

Habitus of male as in Fig. 8 E View Figure 8 , habitus of female as in Fig. 8 F View Figure 8 . Palp as in Fig. 8 A-D View Figure 8 , embolic division as in Fig. 11 E, F View Figure 11 ; epigyne and vulva as in Fig. 8 G-J View Figure 8 . See Wang et al. (2015) for a detailed description.

Type locality.

Tondazaka, Shirahama City, Wakayama Prefecture, Honshu, Japan (33.625°N, 135.422°E).

Remarks.

The current distribution of this species covers Shikoku (Tokushima, Kanagawa, and Kochi Pref.), eastern Chugoku (Okayama Pref.), and southern Kansai (Wakayama Pref.), Japan ( Shinkai et al. 2024, this work; Fig. 13 View Figure 13 ). The male specimens from Okayama collected by us exhibits a massive and more squared median protrusion (MP) of the MTA together with a much shorter and triangular posterior protrusion (PP) when compared with the holotype (cf. Fig. 11 E, F View Figure 11 vs Wang et al. 2015: fig. 6 F). The male from eastern Shikoku examined by us exhibits both the median (MP) and posterior (PP) protrusions strongly reduced. In all cases, the shape of the lamella remains constant. Due to the lack of specimens examined from the type locality area we cannot confirm if this is part of the intraspecific variability of the species or if S. trunciformis is a potential complex of multiple morphologically similar species. Yet, our preliminary molecular results suggest little genetic difference among the individual from Tokushima Pref. with the putative S. trunciformis from Shikoku harvested from GenBank (Fig. 12 View Figure 12 ). Further investigations involving a molecular analysis of a larger number of individuals from different localities may help shed light on this matter.

TKPM

Tokushima Prefectural Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Solenysa

Loc

Solenysa trunciformis Wang, Ono & Tu, 2015

Ballarin, Francesco, Liao, Hauchuan, Touyama, Zento & Eguchi, Katsuyuki 2025
2025
Loc

S. trunciformis

Wang F & Ono H & Tu LH 2015: 54
2015
Loc

Solenysa mellotteei

Wang F & Ono H & Tu LH 2015: 54
Wang F & Ono H & Tu LH 2015: 54
Tu LH & Hormiga G 2011: 499
Tu LH & Li SQ 2006: 91
2006