Chorizagrotis auxiliaris

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Noun1.Chorizagrotis auxiliaris - larvae (of a noctuid moth) that travel in large groups and destroy grains and alfalfa in the midwestern states
cutworm - North American moth whose larvae feed on young plant stems cutting them off at the ground
Chorizagrotis, genus Chorizagrotis - moths whose larvae are army cutworms
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Army Cutworm--The larva of the moth Chorizagrotis auxiliaris, family Noctuidae, which infests the roots of many kinds of green vegetation.