Aegus insignis Nagel, 1941 (Figs. 42–43) Aegus insignis Nagel, 1941: 60. Type locality: Malacca. Benesh 1960: 102; Mizunuma & Nagai 1994: 292; Krajcik 2003: 18; Fujita 2010: 363. Material examined (3♂♂, 1♀). Thailand: 1♂, 1♀ (WPC), Nakhon Si Thammarat Prov., Thung Song Dist., Nam Tok, 13.VIII.2019, Aussawa Samudjit leg.; 1♂ (THNHM), Nakhon Si Thammarat Prov., 17.IV.2007, Weeyawat Jaitrong & Tadsanai Jeenthong leg.; 1♂ (KKIC), Nakhon Si Thammarat Prov., Khao Nan, 11.III.2004, N. Pinkaew leg. Distribution. Malaysia (Nagel 1941; Mizunuma & Nagai 1994; Krajcik 2003; Fujita 2010) and Thailand (Nakhon Si Thammarat Province) (new record).

Published as part of Pathomwattananurak, Wuttipon & Jiaranaisakul, Kawin, 2024, A new species of Aegus Macleay, 1819 (Coleoptera: Lucanidae: Lucaninae: Aegini) from Thailand with checklist of the genus species from the country, pp. 341-358 in Zootaxa 5453 (3) on page 353, DOI: 10.11646/zootaxa.5453.3.2, http://zenodo.org/record/11234118