I prefer to have a species identification on the photographs I post, but this one is more of a PSA: take lots of pics and don't throw any away, because you never what angle an expert on iNaturalist or BugGuide might need to make the call. I *think* this might be Ceratina calcarata (a carpenter bee), but it turns out one of the diagnostic characters is a triangular swelling on the hind femur, something (of course) I didn't know at the time. A frame that I'd normally trash (right pic) shows it. #inaturalist #bugguide #bees #dandelion #taxonomy #insects #macrophotography