Study of type specimens for the two species originally described in the presumed New World genus MycophtorusLacordaire, 1842 (Coleoptera: Erotylidae: Erotylinae: Tritomini) revealed they belong to different genera from different continents. Mycopthorus melanocerusLacordaire, 1842, the type species of Mycophtorus, is conspecific with Neomycotretus hilaris (Arrow, 1917), the type species of NeomycotretusDeelder, 1942. These findings necessitate a transfer of the generic name and type species of Mycophtorus to Neomycotretus, resulting in 23 new combinations for species of this African taxon. In addition, Petaloscelis hilarisArrow, 1917 and Neomycotretus liberianusDeelder, 1942 are synonymized under M. melanocerus, new synonymies. Having the same type species, Neomycotretus Deelder is synonymized with Mycophtorus Lacordaire, new synonymy, the latter having priority. Mycophtorus peruvianusKirsch, 1876 belongs in the genus MycotretusLacordaire, 1842 (sensu lato), becoming Mycotretus peruvianus (Kirsch), new combination. The remaining two Neotropical species previously in “Mycophtorus” are placed in Myceporthus Skelley and Powell, new genus, with the type species here designated as Mycophtorus pauperculusLacordaire, 1842.