any of several pyralid moths, as Pyrausta (ostrinia) nubilalis (European corn borer), the larvae of which bore into the stem and crown of corn and other plants.
The larva of a European moth (Pyrausta nubilalis), now common in many areas of eastern North America, that feeds on and destroys corn and other plants, including potatoes and beans. Also called European corn borer.
Any of various insect larvae similar to the corn borer that infest corn.