Question: what is the difference between a glow worm and a firefly?
Answer: Glow-worms and fireflies both belong to a special group of luminous beetles (Coleoptera: Lampyridae). ... The difference between fireflies and glow-worms lies in the mere fact that fireflies are the winged forms capable of flight, whereas glow-worms represent the wingless and thus flightless members of the Family.