ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
1. : any of a number of larval noctuid moths that often travel in great multitudes from field to field destroying grass, grain, and other crops ; especially : the common armyworm ( Pseudaletia unipuncta ) of the northern U.S. — see beet armyworm , fall armyworm
2. : one of the larvae of certain small two-winged flies (genus Sciara ) that march in large companies in regular order