Differentiation of European Corn Borer (Lepidoptera: Crambidae) and American Lotus Borer (Lepidoptera: Crambidae), Ostrinia penitalis, from North American Field Collections

The European corn borer, Ostrinia nubilalis (Lepidoptera: Crambidae), is a perennial insect pest of cultivated maize that was inadvertently introduced into North America in the early 1900s, but population densities have decreased since the widespread adoption of transgenic hybrids that express Bacillus thuringiensis (Bt) toxins. The native American lotus borer, Ostrinia penitalis (Lepidoptera: Crambidae), is among the most ancestral species...