Noun
Any one of numerous species of aquatic beetles belonging to Dytiscus and allied genera of the family Dytiscidae, and to various genera of the family Hydrophilidae. These beetles swim with great agility, the fringed hind legs acting together like oars.
Source: Webster's dictionaryLater, when the man told his friends about the experience, he said, “You know, I thought to myself, wouldn’t God do that for me, too, if he would do that for a water beetle?” Source: Internet
Was it him again who made him and his wife believe that there was a nyungurudugwi (water beetle) wrestling with one beetle called Robert and the other called Joice? Source: Internet