fireworm

[fahyuh r-wurm]

noun

the larva of any of several moths, as Rhopobota naevana (black-headed fireworm), which feeds on the leaves of cranberries and causes them to wither.

Origin of fireworm

First recorded in 1560–70; fire + worm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for fireworm

firefly, fireworm, glowworm, lampyrid, noctiluca