Scaphidium sp.

Löbl, Ivan, 2025, On the identity of Scaphidium grande, with resurrection of S. inimpressum and S. melanopus and description of two new species (Coleoptera: Staphylinidae: Scaphidiinae), Acta Entomologica Musei Nationalis Pragae 65 (1), pp. 15-20 : 20

Scaphidium sp. group grande

Fig. 11

Material examined. TAIWAN: NANTOU HSIEN: Huisun,Renai To., viii. 2018, leg. Y.H. Ho by FIT, 1 J ( TARI); Sun Moon Lake, 13.v.1972, leg. M. Sakai, 1 J ( MHNG). YILAN CO.: 20 km N of Yilan City, 24°48′N, 121°45′E, 1.iv.2008, leg. F. & L. Kantner, 1 J 1 ♀ ( NMPC).

Doubtfully assigned material (♀♀). TAIWAN: Pingtung, Chun-jih, Ta-han-shan, 1350 m, 13.V.2019, leg.Y.-T. Chung, at night, 1♀ ( TARI); same data but 23.VII.2019, 1♀ ( TARI); Fushan Botanical Garden, Wulai Distr., Yuanshan To., 7.V.2018, leg. F.S. Hu; 1 ♀ ( TARI).

Remarks. The species is very similar with S. grande and S. inimpressum . Its aedeagal characters comply with the illustration of the aedeagus of a Fujian specimen identified as S. grande and illustrated by TANG & LI (2010, fig. 16). Obviously, the species is undescribed. Its description is postponed until more specimens from both mainland China and Taiwan become available for study. The abovementioned associated female specimens are likely conspecific with this unnamed species, or with S. inimpressum .

This is just one of the unresolved problems in the taxonomy of Taiwanese species of Scaphidium . The collections of TARI and MHNG comprise five additional specimens, belonging each to unidentified, quite distinct species. These specimens are from: Hengling Mt. (Taiching City), Defulan Trail (Heping District), Li-ying (Jen-ai, Nantou), Tahanshan (Chunjih, Pingtung Co.), and Peinantashan Trail (Kaohsiung Hsien).

Figures

Figs 6–11. Internal sac of median lobe in Scaphidium grande group. 6 – S. grande Gestro, 1879 (Rumah Tuan Village, Sarawak); 7 – S. inimpressum Pic, 1920 (Defulan Trail, Taiwan); 8 – S. melanopus Achard, 1924 (lectotype); 9 – S. metafasciatum sp. nov. (holotype); 10 – S. grandior sp. nov. (holotype); 11 – Scaphidium sp. (Huisun, Taiwan).