On the identity of Scaphidium grande, with resurrection of S. inimpressum and S. melanopus and description of two new species (Coleoptera: Staphylinidae: Scaphidiinae)
Löbl Ivan
Acta Entomologica Musei Nationalis Pragae 65(1): 15-20, 2025
Published online: 9th March 2025
Views: 1764
Abstract: Scaphidium grande Gestro, 1879, assumed to be widely distributed in Asia, has
been misidentified. The range of this species is likely restricted to Borneo.
Scaphidium grande is distinguished from allied species by the male genital
characters, notably by the shape of the median lobe. Scaphidium grande var.
inimpressum Pic, 1920 and S. grande var. melanopus (Achard, 1924), placed in
synonymy by Löbl (1992, 2018), are resurrected as valid species. The lectotype
is designated for Scaphidiolum grande var. melanopus Achard, 1924. Similar and
obviously related species, Scaphidium metafasciatum sp. nov. from Taiwan and
Scaphidium grandior sp. nov. from Thailand, are described.
Key words: Coleoptera, Staphylinidae, Scaphidiinae, Scaphidium, shining fungus beetles, lectotype designation, new species, taxonomy, Borneo, Taiwan, Thailand, Oriental Region
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