ゲンゴロウ

noun

diving beetle; Japanese predacious diving beetle

Refers to diving beetles in general, and specifically to Cybister japonicus, a large species found in Japan. Often kept as a pet by children.

• 子こ供どもの頃ころ、田たんぼでゲンゴロウを捕つかまえた。

  When I was a child, I caught diving beetles in the rice paddies.

• ゲンゴロウは水すい中ちゅうで小ちいさな魚さかなを食たべる。

  Diving beetles eat small fish underwater.