Snowberry Clearwing

I believe this is a Snowberry Clearwing Moth, which differs from the Hummingbird Clearwing.  If I understand this correctly, the snowberry is black and yellow, like a bee, and has black legs and a black line running through its eye.  On the other hand, the hummingbird version has lighter legs, and is more of an olive and reddish color.  Anyway, there was only one there today and I spent way too much time following it around.
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