description Three-lined Potato Beetle Overview
The three-lined potato beetle (Lema trilineata) is a North American leaf beetle in the family Chrysomelidae. Adults have dark stripes running along their yellowish or orange wing covers, the feature behind the common name, and both adults and larvae feed on the foliage of potato, tomato, tomatillo and other plants in the nightshade family. The larvae are known for carrying their own feces on their backs, which is thought to deter predators.
help Three-lined Potato Beetle FAQ
What is the scientific name of the three-lined potato beetle?
The three-lined potato beetle is Lema trilineata. It is a North American leaf beetle in the family Chrysomelidae.
Why is it called the three-lined potato beetle?
Adults have dark stripes running along their yellowish or orange wing covers. Those three lines are the feature behind the common name.
What does the three-lined potato beetle eat?
Both adults and larvae feed on the foliage of potato and related plants. Their feeding can leave visible damage on leaves during the growing season.
Is the three-lined potato beetle a true beetle?
Yes. It is a leaf beetle in the family Chrysomelidae, unlike insects such as moths or true bugs that may also damage potato plants.
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