A new monotypic genus Cretoattagenus gen. n. (type species: C. coziki sp. n.) is described and illustrated from Cretaceous amber from Kachin State, northern Myanmar. Cretodermestes palpalis Deng, Ślipiński, Ren et Pang, 2017 is illustrated and discussed based on additional material. A list of Dermestidae known from Burmese amber is also given. Key words: skin beetles, Dermestidae, taxonomy, new taxa, Cretaceous, Cenomanian, Myanmar.