What is "armyworm"

armyworm \armyworm\, Army worm \Ar"my worm`\ (Zo["o]l.) (a) 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. (b) The larva of a small two-winged fly ( Sciara), which marches in large companies, in regular order. See Cotton worm, under Cotton. Syn: army worm 2. the larva of the fungus gnat; -- they march in large companies in regular order. [WordNet

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n. The larva of any of the ''Spodoptera'' genus of noctuid moth, which typically feed in large, destructive groups.

1. n. noctuid moth larvae that travel in multitudes destroying especially grass and grain [syn: army worm, Pseudaletia unipuncta]

2. moth whose destructive larvae travel in multitudes [syn: Pseudaletia unipuncta]

3. larva of fungus gnat; march in large companies in regular order

Armyworm may refer to:

• African armyworm (Spodoptera exempta) (Africa)
• Common armyworm or true armyworm ( Mythimna unipuncta) (North and South America)
• Fall armyworm (Spodoptera frugiperda) (North and South America)
• Lawn armyworm ( Spodoptera mauritia)
• Northern armyworm, Oriental armyworm or Rice ear-cutting caterpillar ( Mythimna separata) (Asia)