Not a regular by any means. I happened to be walking out with my camera when he appeared. The multi-shot feature on my camera - takes three every time the shutter button is depressed - is my new bestest friend.
Joe pye weed, bee balm, NY ironweed, coneflower, bits of bergamot and cup plant. These are all easy to grow, self sow, and attract hummingbirds, goldfinches, and butterflies.
I purchased this at a local nursery. According to Google egg is to be kept at a humid 80-90 degrees. Monitor daily as they will eat each other when they emerge. Distribute individuals around your garden.