What's That Bug? does not endorse extermination

Locust Borer mimics wasp
Location:  Fairfield, Maine USA
August 8, 2010 3:22 pm
Dear Bugman,
Today I found this thing in the Goldenrod. First I though it was wasp, but as I got closer I knew it was not a wasp. I got a bunch of pictures of it feeding on nectar. It was hard to get a view of the underside because it was always clinging against the flower. I looked it up on B.G. and it seems to be an adult Locust Borer-Megacyllene robiniae. Can you confirm the identification? It’s larva seem to be considered a pest to Black Locust trees…
James R

Locust Borer

Hi James,
Your identification is correct, and yes, the Locust Borer is an excellent wasp mimic.  We are thrilled to receive your images of the adult Locust Borer on its favorite food flower, the Goldenrod.

Locust Borer

What's That Bug? does not endorse extermination
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