From lanthorn + fly. lanthorn-fly (plural lanthorn-flies) (archaic) A firefly 1734, William Stukeley, Of the Gout, page 50: Glow-worms, lanthorn-flys may...
by the fact that they were sometimes made from animal horns. lanthorn (plural lanthorns) Archaic form of lantern. 1631, Francis [Bacon], “New Atlantis...
fly hop fly hornet fly horse bot fly horse-fly horse fly hover-fly hurt a fly ichneumon fly lady-fly lake fly lanternfly lanthorn-fly leaf-miner fly like...
French servant, with his ear locks in tight buckles on each side of a long, lanthorn face, on which habit had deeply wrinkled an everlasting smile. sun kink...