OK here are a couple of crappy cell phone pics. I had to stop the truck in the road, jump out and take the pics and jump back in before another car came. I did see bees and butterflys working these, and the white coating was kind of sticky. I didn't notice if any of the bees had any white on them or not. Didn't get much of a chance to observe. Maybe someone could identify?

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ImageShack.usIt's hard to tell from the photos, but I've been seeing a lot of white bees in and out of my hives in Michigan. I've got a field with a lot of wild Bee Balm (Monarda) The girls look like they've been rolling in ashes, but after seeing them in the field working the bee balm, they look a little powder coated. They're coming in AND out of the hive looking like they've been powdered, so it must be sticky. Just a guess, but I'd say it's Bee Balm.