Cucujus costatus Zhao & Zhang, new species is described from Guangdong, China. This new species can be easily recognized by the longitudinal elevated carinae on elytra and its strongly convex eyes. Additional records for C. kempi Grouvelle, 1913 and C. elongatus Lee & Pütz, 2008 are added. A key to the known Chinese species of Cucujus Fabricius is given.

Four Chinese species of the genus Didrepanephorus Wood-Mason, 1878 with dense setae on dorsal surface are illustrated, including D. heterocolor Qiu, Zhao & Xu, new species from Guizhou. Didrepanephorus mucronatus Arrow, 1921 and D. subvittatus Benderitter, 1922 are newly recorded from China in Yunnan and Guangxi respectively. Detailed descriptions, intraspecific variations, and natural history are provided for the aforementioned species. Previously unknown female of D. nishiyamai Muramoto, 2006 is documented for the first time.

Abstract A new species of the genus Anomala Samouelle, 1819, Anomala consanguinea sp. nov. is described from Hainan and Guangdong Provinces, southern China. It is closely related to Oriental Anomala esmeralda Prokofiev, 2015, A. russiventris Fairmaire, 1893, and A. inepta Ohaus, 1916. Diagnostic characters of these species are provided and compared. In addition, their relationships are briefly discussed. Anomala inepta is recorded from Sabah, Malaysia for the first time.

Two new species, Eophileurus varipunctatus Yang, Pathomwattananurak & Zhao, new species from Mindoro and Palawan, the Philippines and Eophileurus vietnamensis Yang, Pathomwattananurak & Zhao, new species from Vietnam are described and illustrated. Eophileurus iwasei Muramoto, 1995 and E. chinensis (Faldermann, 1935) are illustrated and compared to each new species, respectively. The female of E. quadratifovealis Yang & Pathomwattananurak, 2022 is described for the first time.

Six new insular species of the genus Anomala Samouelle, 1819 are described: A. hualienensis Zhao, new species, A. linwenhsini Zhao & Zorn, new species, A. wutaiensis Zhao & Zorn, new species, A. kanshireiensis Zorn & Zhao, new species and A. inclinata Zhao & Zorn, new species from Taiwan Island as well as A. longilobata Zhao & Zorn, new species from Hainan Island.