What does your caterpillar look like? Choose one of the following:

Figure K1. Southwestern Corn Borer (summer form)

• 5a. Body with large, black tubercles (Figure K1, above) . . . southwestern corn borer (summer form).
• 5b. Body with pale brown tubercles or tubercles inconspicuous (Figure K2, below) . . . Southwestern Corn Borer (winter form).

Figure K2. Southwestern Corn Borer (winter form)