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

• 4a. Black central dots in tips of fully extended prolegs on abdominal segments 3 through 6 (Figure H), visible at 10 power, body pale brown or pinkish gray with dark gray middorsal line on abdominal segments (Figure D, below). Your specimen is most likely a European corn borer.
• 4b.No black central dots in tips of fully extended prolegs on abdominal segments 3 through 6 (Figure I); body off-white; go to 5.

Figure D. European Corn Borer