Life stages: Eggs, larvae, pupae, adults.
Adults are occasionally found feeding on potato foliage and may also be found on a wide variety of plant species, including grapevine. Their peak numbers usually occur by the middle of August.
Adults are black, with a dark-red spot on the head, and approximately 4 mm long. They have large hind legs, allowing them to jump very quickly. Adults chew holes in the leaves. Their abundance could depend on the proximity of corn fields and other sources of food.
Larvae may be found on the roots of a wide variety of weeds and cultivated plants, including corn.
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