New taxa of Dermestidae (Coleoptera) from Dominican amber are described, illustrated and compared. Included is the new genus and species, Limniattagenus electron gen. n, sp. n. and five additional new species: Cryptorhopalum macieji sp. n., Cryptorhopalum kaliki sp. n., Caccoleptus (Bicaccoleptus) prokopi sp. n., Caccoleptus (Caccoleptus) electron sp. n. and Attagenus electron sp. n. Together with earlier fossils from this amber source, there are now representatives of six dermestid genera in Dominican amber (Attagenus LATREILLE, 1802, Limniattagenus gen. n., Amberoderma HÁVA & PROKOP, 2004, Caccoleptus SHARP, 1902, Apsectus LECONTE, 1854 and Cryptorhopalum GUÉRIN-MÉNEVILLE, 1838). Representative larval forms are also depicted. Since only two extant genera of Dermestidae (Dermestes LINNAEUS, 1758 and Trogoderma LATREILLE, 1829) are known from Hispaniola, it would appear that the biodiversity of this beetle family in Hispaniola was greater in the Paleogene than it is today.