The Risian glowbug was an insectoid species native to Risa. Glowbugs were active day and night on the tropical islands. They had no stings and would not disturb natives or tourists. (STO mission: "Horga'hn Hunt") Glowbug swarms were a danger to sand castles however, requiring arenologists to shoo them away. (STO mission: "Castles in the Sand")