The cicada killer is one of the largest wasps in North America. Adults are approximately 1 and 1/8 to 1 and 5/8 inches long, very robust, with a black body marked with yellow to white stripes.

Killer cicada wasps are large, black or dark brown wasps, approximately two inches in length. They have amber colored wings and yellow markings on their abdomen. According to the Smithsonian ...