Pupae of diamondback moth, Plutella xylostella, are green to yellowish and occur in a loose silken cocoon. When parasitized (top) the pupa darkens.

Pupa and a parasitized pupa on cabbage leaf; . Credit: Jack Kelly Clark
Pupae of diamondback moth, Plutella xylostella, are green to yellowish and occur in a loose silken cocoon. When parasitized (top) the pupa darkens. Credit: Jack Kelly Clark