New species and records of Laena Dejean (Coleoptera: Tenebrionidae: Lagriinae) from Vietnam, southeastern China, and Korea.

New species and new records of the genus Laena Dejean, 1821 from Vietnam, southeastern China (Hainan, Fujian, Guangdong, Guangxi, Guizhou, Jiangxi and Zhejiang provinces) and Korea are presented. The following new taxa are described: L. brunkei sp. n. (Vietnam, Guizhou), L. faillei sp. n. (Vietnam), L. honba sp. n. (Vietnam), L. tramtonica sp. n. (Vietnam), L. hainanica sp. n. (Hainan), L. hajeki sp. n. (Guangdong), L. lianhua sp. n. (Jiangxi), L. logshengica sp. n. (Guangxi, Fujian), L. yuanbaoica sp. n. (Guangxi). Laena rotundicollis Marseul, 1876 is recorded from Korea for the first time.

Four new species and new records of Micropeneta Pic, 1921 (Coleoptera: Tenebrionidae: Gnathidiini) from the Oriental and Papuan Regions, including a checklist and an identification key.

The genus Micropeneta Pic, 1921 (Tenebrionidae: Gnathidiini) was known so far by seven species in the Oriental Region. Newly collected material is presented herein including four species new to science: M. alabaca sp. n., M. kinabaluca sp. n., both from Borneo, M. laotica sp. n. from Laos, and M. papuana sp. n. from West Papua. The material shows that the genus is also distributed in Indochina and on New Guinea. The species of Micropeneta are characterised by the male head with a pair of distinct glabrous cephalic horns or shorter processes; some species possess additionally the anterior margin of the male pronotum with a pair of teeth or flat swellings, or the anterior part of pronotum with a broad impression. A checklist for all species and an identification key (suitable for males only) is added.

Two new species of the genus Dichillus Jacquelin du Val, 1861 (Coleoptera: Tenebrionidae: Stenosini) from Thailand.

Two species of Dichillus Jacquelin du Val, 1861 (Tenebrionidae, subfamily Pimeliinae, tribe Stenosini) new to science from the lowlands of central Thailand are described: Dichillus grimmi sp. n. and Dichillus siamicus sp. n. An identification key for the four known species of Dichillus from Thailand is provided. A checklist of Stenosini from Thailand is added.