pupa of cotton bollworm on black

abdomen animal antennae armigera bands black bollworm bordered brown butterfly chrysalis cocoon cotton cover crease dark earworm envelope eyes folds grey helicoverpa insect legs lines metamorph metamorphosis moth noctuidae proboscis pupa pupated red reddish rings scarce segmented shell shiny skin smooth soil spots stigma tibia transformation transforming wings wrinkled wrinkles yellow