AbstractThis chapter describes the borers of palms (Palmae or Arecaceae). A borer is defined here as an insect that makes a tunnel by chewing or burrowing into the stem, crown, unopened inflorescences, flowers, fruits, peduncles, petioles, fronds or roots of a palm. The insect borers that use palms as hosts are found in the following taxa: Coleoptera (Curculionidae, Bostrychidae, Bruchidae, Lymexylidae, Scarabaeidae, Lucanidae and Cerambycidae); Lepidoptera (Castniidae, Tineidae and Glyphipterigidae); and Isoptera.