We present the first record of Rhizophora mangle (Malpighiales: Rhizophoraceae) as a host of Acalles sablensis Blatchley, 1920 (Coleoptera: Curculionidae: Cryptorhynchinae) in the Ramsar site No. 1602 of the Mangroves and Wetlands of Tuxpan. The presence was recorded of dead Rhizophora mangle propagules that presented perforations in the bark. Beetles of the family Curculionidae was found within the propagules and identified as Acalles sablensis. This species has previously only been recorded in Cape Sable and Chokoloskee, Florida, USA, in 1920 and 1922 in dead branches of Sideroxylon celastrina (Kunth) T. D. Penn (Ericales: Sapotaceae) (Blatchley 1920, 1922). This study represents the first report of this curculionid species in Mexico.