水すい生せい昆こん虫ちゅうすいせいこんちゅうMeanings1nounaquatic insectRefers to insects that live in or on water for all or part of their life cycle, such as water striders, diving beetles, and dragonfly larvae.池いけで水すい生せい昆こん虫ちゅうを観かん察さつした。