Dermestes (Dermestinus) marocanus sp. n. from Morocco is described and illustrated. New records extending the known geographic distribution of the following species are presented: Dermestes (Dermestinus) carnivorus Fabricius, 1775 (Thailand); D. (D.) kaszabi Kalík, 1950 (Azerbaijan); D. (D.) laniarius Illiger, 1801 (Morocco); D. (D.) shaanxiensis Cao, 1987 (Taiwan); D. (D.) tessellatocollis tessellatocollis Motschulsky, 1860 (Tibet); D. (Dermestes) ater DeGeer. 1774 (Thailand); D. (D.) bicolor Fabricius, 1781 (Bulgaria, Jordania); D. (D.) freudei Kalík & Ohbayashi, 1982 (Siberia); D. (D.) haemorrhoidalis Küster, 1852 (Madagascar); D. (D.) hispanicus Kalík, 1952 (Morocco); D. (D.) leechi Kalík, 1952 (Sudan); D. (D.) semistriatus Bohemian, 1851 (Zimbabwe); D. (Montandonia) roubali Kalík, 1951 distribution and differences from D. (M.) depressus Gebler. 1830. The following synonyms are proposed: D. (D.) tessellatocollis tessellatocollis Motschulsky, 1860 (=D.(D.)tessellatocollis var. kaliki Havelka, 1957, syn. n.); D. (D.) maculatus DeGeer, 1774 (=D. (D.) maculatus ssp. pakistanicus Havelka, 1951, syn. n.); D. (D.) carnivorus Fabricius, 1775 (=D. (D.) carnivorus var. doemmlingi Meier, 1899, syn. n.)