An extensive checklist of the Cerambycidae deposited in the Entomological Collection of the Federal University of Rondônia (UNIR) is provided. The checklist includes photographs of 58 new records for the State of Rondônia, four of them representing new records for Brazil: Oncideres wappesi Martins Galileo, 2005, Rhaphiptera boliviana Galileo Martins, 2007, Tulcus liturus (Dillon Dillon, 1945) and Xenofrea zischkai Galileo Martins, 2012.