Recent collecting has revealed a number of synonymies and new distributional records for Caribbean and Antillean Cerambycidae. New synonymies established: Lamproclytus oakleyi Fisher = Lamproclytus elegans Fisher; Tilloclytus puertoricensis Fisher = Tilloclytus minutus Fisher; Leptostylopsis albosignatus (Fisher) = Leptostylopsis antillarum (Fisher); Styloleptus puertoricensis (Fisher) = Antilleptostylus nigricans (Fisher); Eugamandus brunneus Fisher = Eugamandus oakleyi Fisher; Lethes israeli Zayas = Styloleptus biustus biustus (LeConte). Desmiphora hirticollis (Olivier), and Amniscus similis (Gahan) are recorded from Puerto Rico for the first time.