Thank you, Julie! I googled, and sure enough it's a Blue Mud Dauber, just as you said.
I don't know how to do a 100% crop, but I enlarged the image to 100% and cropped around the wasp. As you can see, the image is definitely less than stellar, but I was amazed to find my Kx and DA35 had captured the wasp's colors and geometric shapes. I was trying to hold very still, but I wasn't all that successful, being so close to my subject.
I just ordered new glasses, and I got clear lenses this time instead of Transitions, so I should be able to see more clearly when I'm shooting!