Locust Borer

image of Locust Borer on leaf

The locust borer (Megacyllene robiniae) is a longhorned beetle whose larvae tunnel into the trunks of black locust (Robinia pseudoacacia). Their infestations often kill weakened or damaged black locusts. The colorful black and yellow adults are often seen in late summer as they feed on the pollen of goldenrod and other flowers.

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