長ちょう角かくMeanings1noun which may take the genitive case particle 'no', nounlonghorn beetle; longicorn beetleRefers to beetles of the family Cerambycidae, characterized by long antennae. Used in biological contexts.長ちょう角かく類るいの幼よう虫ちゅうは材ざい木もくを食たべる。Longhorn beetle larvae eat wood.