Newport, Washington County, Minnesota, USA August 19, 2010
Bombus affinis, as ID'd by Sarina Jepsen of xerces.org. Found foraging with B. impatiens on my blue anise hyssop (Agastache sp.).
As of 8/24/10, I have not seen this individual for several days; however, the previous couple weeks, I'd find this bee predictably on the hyssop spikes.
I'll try to get a few more shots uploaded.