Cotton bollworm - Helicoverpa armigera

"Helicoverpa armigera" is a species of Lepidoptera in the family Noctuidae. The larvae feed on a wide range of plants, including many important cultivated crops. It is a major pest in cotton and one of the most polyphagous and cosmopolitan pest species. It should not be confused with the similarly named larva of the related species "Helicoverpa zea".