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The larva of any geometrid moth. See Geometrid.

etridæ; -- so called because their larvæ (called loopers, measuring worms, spanworms, and inchworms) creep in a looping manner, as if measuring. Many of the species are injurious to agriculture, as the cankerworms.

pevine, especially Erythroneura vitis. See Illust. of Grape hopper, under Grape. -- Vine inchworm (Zoöl.), the larva of any species of geometrid moths which feed on the leaves of the grapevine, especially Cidaria diversilineata. -- Vine-leaf rooer (Zoöl.), a small moth (Desmia maculalis) whose larva makes a nest by r…