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Entomology (Study of Bugs)/It's driving me crazy to find out;


I was looking at my flowers and saw this thing as big as a hummingbird, but knew that it wasn't. It was green, wings the size of a hummingbird, but, on the top it had those little furry things that moths have. I guess to feel what they smell or something. It did not have a bill like hummingbird's. I can't get this out of my mind. I have searched, but to no avail. Can you please help me to find out what exactly this was? Thanks, a lot.

Hello Donna,

Without a photo, I cannot give you a conclusive identification. However, I am pretty sure I know what you saw. If it looked like the photos here, then it was a Hummingbird Moth (species Hemaris diffinis). Let me know if this doesn't look right! Thanks for the question.


Entomology (Study of Bugs)

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Jessica Mellinger


I can answer questions about invertebrates native to California, including insects commonly found in homes. If you have an identification request, please attach a photo to your question.


I was involved in collection and identification of invertebrates for the United States Geological Survey, Biological Resources Division for six years. Also, I provided these same services intermittently for the UC Davis John Muir Institute of the Environment for many years. I have been a member of since 2009.

Department of the Interior: United States Geological Survey, Davis Field Station; University of California, Davis Aggie Alumni Association; UC Davis Center for Neuroscience; U.S. Department of Veteran's Affairs

I have two B.A.'s from the University of California, Davis and two Associate's degrees from Sacramento City College.

Awards and Honors
Special Thanks for Achieving Results award from the Department of the Interior

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