The red-headed ash borer is a common Missouri longhorned beetle. Adults resemble wasps, but they are harmless to people. The colors and markings are distinctive. Their larvae feed on a variety of dead or dying hardwoods, including oak, hickory, persimmon, and hackberry, as well as ash. This helps the decomposition process and enriches the soil. Red-headed ash borers can damage felled wood intended for lumber and can sometimes emerge from firewood carried indoors and not yet burned.
Learn more about this and other longhorned beetles on their family page.