(CBS DETROIT) – Officials are warning Michigan residents to keep an out for a poisonous caterpillar spotted in the state.

The American Dagger caterpillar was spotted during a hike through the trails on mid-Michigan college’s campus. The caterpillars may seem harmless, but they are indeed poisonous.

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“DO NOT PICK THEM UP! Both children and adults can be affected by them. Symptoms include the following: stinging sensation followed by a burning, itching sensation on the skin which can develop into a rash,” the Clare Area Chamber of Commerce said.

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