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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Beetles, bugs, ants, and other insects without obvious wings - 1/4 inch - 1/2 inch long > Three-lined potato beetle

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Three-lined potato beetle

Lema daturaphila

Three-lined potato beetle

Jeff Hahn, University of Minnesota

Three-lined potato beetle

Brenda Postels, University of Minnesota Extension

Size: 1/4 - 5/16 inch long

Where/When: Feeds on tomatillos, potatoes, and other plants in the nightshade family (Solanaceae). Active from May through August.

Significance: Usually occurs in low numbers and is not considered a pest although it may become numerous in localized sites.

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