Cite
 

Meaning of hemlock looper

hem'lock loop"er

Pronunciation: [key]
  1. the larva of a geometrid moth, Lambdina fiscellaria, common in some areas of North America and a serious pest of various trees, as hemlock, Douglas fir, balsam spruce, and oak.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.