elytrum
/ˈɛlɪtrəm/
noun
- The hardened forewing of a beetle or similar insect, which forms a protective case for the hindwing.
- The collector carefully pinned the beetle, making sure not to damage its elytrum.
- The beetle's elytrum was shiny and green, protecting its delicate flying wings underneath.
- When the ladybug landed, its elytrum opened to reveal transparent wings.