fall webworm

from WordNet (r) 3.0 (2006)

fall webworm
    n 1: a variety of webworm [syn: {fall webworm}, {Hyphantria
         cunea}]

from The Collaborative International Dictionary of English v.0.48

fall webworm \fall webworm\, n. (Zool.)
   The larva of any moth of the genus {Hyphantria}, which spins
   a web around the foliage on which it feeds.
   [PJC]