It's a grass-carrying wasp Isodontia. There are several types in Illinois. I see them at times stuffing a single blade of grass into its nesting tube. Too bad it's dead
"My work is loving the world. Here the sunflowers, there the hummingbird — equal seekers of sweetness. Here the clam deep in the speckled sand. Are my boots old? Is my coat torn? Am I no longer young, and still not half-perfect? Let me keep my mind on what matters, which is my work which is mostly standing still and learning to be astonished." — Mary Oliver, from Messenger
