army worm

English Thesaurus

1. noctuid moth larvae that travel in multitudes destroying especially grass and grain (noun.animal)

hypernym	:	caterpillar,
definition	:	a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth (noun.animal)

member meronym	:	genus pseudaletia, pseudaletia,
definition	:	moths whose larvae are armyworms (noun.animal)