Noun | 1. Heliothis zia - larva of a noctuid moth; highly destructive to especially corn and cotton and tomato cropscorn earworm, cotton bollworm, tobacco budworm, tomato fruitworm, vetchwormfamily Noctuidae, Noctuidae - cutworms; armywormsbollworm - any of various moth caterpillars that destroy cotton bolls | | 2.Heliothis zia - medium-sized moth whose larvae are corn earwormsheliothis mothnoctuid, noctuid moth, owlet moth - usually dull-colored medium-sized nocturnal moth; the usually smooth-bodied larvae are destructive agricultural pestsgenus Heliothis, Heliothis - a genus of Noctuidae |