Lydella thompsoni puparium next to the cadaver of a fifth instar European corn borer in potato (C. E. Mason).

A Macrocentrus grandii female preparing to insert an egg into a European corn borer larva (S. Udayagiri).

European corn borer egg mass much darker than the blackhead stage typical of egg parasitism by a tiny Trichogramma species (C. E. Mason).

Egg mass of European corn borer being parasitized by a tiny Trichogramma nubilale wasp (C. E. Mason).

Dead larva of a European corn borer that was killed by Beauvaria bassiana, a pathogenic fungus (M. E. Rice).

Lydella thompsoni adult fly, which parasitizes European corn borer (R. G. Weber).

Lady beetle larva, a predator of European corn borer eggs (M. E. Rice).

Adult lady beetle, Coleomegilla maculata (M. E. Rice).

European corn borer pupa in cornstalk (M. E. Rice).

European corn borer egg mass with numerous eggs on underside of corn leaf (M. E. Rice).