Nouns

(n)armyworm, army worm, Pseudaletia unipunctanoctuid moth larvae that travel in multitudes destroying especially grass and grain
(n)armyworm, Pseudaletia unipunctamoth whose destructive larvae travel in multitudes
(n)armywormlarva of fungus gnat that feed on cereals and other grains; they march in large companies in regular order when the food is exhausted