Observaciones de awwmail

This photo of a flying bug isn’t very good but I will try to describe it in hopes that someone can ID this amazing creature. The most distinctive feature was a substantial tail, about five inches long with black and green cross stripes on it. The wings were rather gossamer and the body was a metallic green. The “eyes” protruded from the head and were greenish blue. It flew around me, facing me like a hummingbird is want to do. The bug was about seven inches long from head to tip of the tail and was beautiful and distinctive. I never saw anything like it.