hemlock looper

noun
variants: less commonly

hemlock spanworm

Definition of hemlock looper

  1. :  a greenish looper that is the larva of a rather plain buff or gray geometrid moth (Lambdina fiscellaria) of most of North America, that feeds on hemlock and other conifers and oak, and that is sometimes a serious defoliator

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to cast off or become cast off

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