Great glow-worms often lurked about the borders of Olórë Mallë, the Path of Dreams.[1]
As these creatures are mentioned only fleetingly, it is impossible to say if they were related to the great Worms (wingless Dragons), or if they were giant versions of regular glowworms. One can assume that they glowed in the dark (and therefore perhaps were related to, or were another name for, the spark-dragons).
References
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Book of Lost Tales Part One, "I. The Cottage of Lost Play", p. 18