- the larva of any of several moths, as Hyphantria cunea (fall webworm) or Loxostege similalis (garden webworm), which spins a web over the foliage on which it feeds.
Origin of webworm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for webworm
In nests of webworm and beaten from bushes of bayberry, Myrica cerifera, along edge of pine woods (Rehn and Hebard, 1916).
Chorisoneura texensis has been found in nests of webworm in Florida (Rehn and Hebard, 1916).