The genus Caryopemon Jekel (Coleoptera: Chrysomelidae) contains 9 species distributed only in Oriental and Afrotropical regions with 3 of these species from China and Myanmar. Caryopemon luteonotatus Pic and Caryopemon hieroglyphicus Jekel are recorded for the first time in China. Caryopemon giganteus Pic is recorded newly in Myanmar. Re-descriptions, illustrations, and a key for these 3 species are included. Mucuna interrupta Gagnepain and Mucuna macrocarpa Wallich (Fabales: Fabaceae) are reported as host plants of seed beetles for the first time.