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Striped Cucumber Beetle
(John Obermeyer, Purdue University)
Common Name: Striped Cucumber Beetle

Order: Coleoptera

Family: Chrysomelidae

Pest Status: Striped cucumber beetles can be pests of cucumbers and related plants.

Appearance: Adults are about 1/4-inch long and wing covers bear three, slate-black stripes on a yellow-green background. They are sometimes confused with western corn rootworm beetles, but are more oblong and shiny. The head and antennae are dark, and the wings are covered with very small punctures.

Life Cycle: Adults overwinter and leave their hibernation quarters in the spring. The females lay eggs that hatch within a week. The larvae spend two more weeks feeding on the roots and stems of plants before pupating. The pupal period lasts one week. As fall approaches, the beetles crawl under litter to overwinter.

Where to Collect: They are found in gardens or wooded, bushy areas, especially in the fall.