Subject: Colorful bug found in yard
Location: Northern Illinois
June 15, 2013 10:40 am
Found this guy chilling on a tree growing in my backyard before I mowed. Took the picture and then shooed him out of the way so that he wouldn’t become one with the lawnmower.
Do you have a vegetable patch in your backyard and are you growing zucchini or some other plants in the squash family? This is a moth known as a Squash Vine Borer, Melittia cucurbitae. The female lays her eggs on the stems of plants in the squash family and the larva bores into the stems of the plant, often doing killing the plant. See this image from BugGuide of the larvae.