A new genus and three new species of the subfamily Lamiinae are described and illustrated: Osckayia oaxacae gen. nov., sp. nov. from Mexico (Oaxaca); Pseudastylopsis albus sp. nov. from Mexico (Oaxaca) and Honduras (Cortés); and Urgleptes albomaculatus sp. nov. from Mexico (Oaxaca). New country record for Acanthoderes (Acanthoderes) giesberti Chemsak Hovore, 2002 is provided.
Keywords: Coleoptera, Acanthocinini, Apomecynini, Chimalapas, taxonomy.