Triartiger caiyujiei sp. nov., a remarkable clavigerite beetle (Coleoptera, Staphylinidae, Pselaphinae) associated with Pseudolasius ants (Hymenoptera, Formicidae) from East China Author Yin, Zi-Wei 0000-0001-6659-9448 Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, Shanghai 200234, China Author Niu, Xiao-Ling https://orcid.org/0009-0002-7928-1492 Zhengjiang Tianmshan National Nature Reserve Management Bureau, Linan, Hangzhou 311300, Zhejiang, China text Deutsche Entomologische Zeitschrift 2025 2025-04-15 72 1 9 14 journal article 309245 10.3897/dez.72.144365 fa157da3-4807-4650-9ccc-d1677875705b E82AFF4A-F2BA-48AD-A246-D966CC7EF57D

Table 1. Current knowledge of the genus Triartiger.

Species	Distribution	Collecting method	Host	Available material	Reference
* Note: FIT = flight intercept trap.
T. caiyujiei sp. nov.	Zhejiang	by hand	Pseudolasius sp.	Holotype ♂	present study
T. jiangxinongda Yin & Du, 2024	Jiangxi	FIT *	unknown	Holotype ♂	Yin and Du (2024)
T. klapperichorum Nomura, 1997	Taiwan	FIT *	unknown	Holotype ♀ + 1 ♂, 6 ♀♀	Nomura (1997); Sugaya and Maruyama (2003)
T. nomurai Besuchet, 2008	Taiwan	unknown	unknown	Holotype ♂ + paratype 1 ♂, 2 ♀♀	Besuchet (2008)
T. reductus Nomura, 1997	Tsushima	unknown	Crematogaster osakensis	Holotype ♀ + 1 ♂, 1 ♀ + at least 13 exx.	Nomura (1997, 1999); Maruyama et al. (2013)
T. spatulatus Yin, 2023	Fujian	by hand	Tetramorium nipponense	Holotype ♂	Yin (2023 b)
T. urceus Kubota, 1944	Taiwan	unknown	unknown	Holotype ♀ + 2 ♂♂, 3 ♀♀	Kubota (1944); Nomura (1997)