The truth about fireflies
Starting with the insects: Fireflies are not flies but flying beetles with luminous tails, and glow-worms are closely related to them, being the larvae of four different kinds of luminescent beetles (but flightless ones).
Starting with the insects: Fireflies are not flies but flying beetles with luminous tails, and glow-worms are closely related to them, being the larvae of four different kinds of luminescent beetles (but flightless ones).