Trisinus, Ding, Niu & Yin, 2025

Ding, Mei-Lin, Niu, Xiao-Ling & Yin, Zi-Wei, 2025, A new species group of Trisinus Raffray (Coleoptera: Staphylinidae: Pselaphinae), with description of two new species from the Tianmu Mountains, China, Zootaxa 5590 (2), pp. 256-262 : 257

Trisinus cavernosus species group

Diagnosis. Trisinus species with a large, exaggerated excavation at the middle of the vertex in the male. Other body parts, including the antennae, are simple, unmodified.

Included species. At present there are two closely related species, Trisinus cavernosus sp. nov. and Trisinus qingliangmontis sp. nov., placed in this newly termed group. Additional species from southern China have been seen (Ding & Yin pers. obs.), and will be dealt with separately.