armyworm

Noun

ar=my=worm

WORDNET DICTIONARY

armyworm(n = noun.animal) army worm, pseudaletia unipuncta - noctuid moth larvae that travel in multitudes destroying especially grass and grain;

is a member of genus pseudaletia, pseudaletia

is a kind of caterpillar

armyworm(n = noun.animal) pseudaletia unipuncta - moth whose destructive larvae travel in multitudes;

is a kind of noctuid, noctuid moth, owlet moth

is a member of genus pseudaletia, pseudaletia

armyworm(n = noun.animal) - larva of fungus gnat that feed on cereals and other grains; they march in large companies in regular order when the food is exhausted;

armyworm,

A lepidopterous insect, which in the larval state often travels in great multitudes from field to field, destroying grass, grain, and other crops. The common army worm of the northern United States is the noctuid moth (Pseudaletia unipuncta, formerly Leucania unipuncta. The name is often applied to other related species, as the cotton worm. [1913 Webster]
the larva of the fungus gnat; -- they march in large companies in regular order. [WordNet 1.5]