Answer: It may very well be a Spotted Cucumber Beetle, considering your description and the crops that it's feeding on. Spotted Cucumber Beetles are greenish yellow, 1/4" long, with a black head and 11 or 12 black spots on its back. Adults chew holes in leaves, flowers and fruits of corn, cucumbers, melon, squash, peas, potatoes, tomatoes and eggplant. You can handpick them, or release predatory insects. If you need to spray an insecticide, spray with a neem-based repellent ("neem" is an extract of the neem tree seed) according to the label directions.
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