Looks like a Bumble Bee, the Nevada Bumble Bee (Bombus nevadensis) seems close to. To be honest I don't see any red marks on this one. However Hunt's Bumble Bee (also found in Montana has some very obvious red on the back: http://bugguide.net/node/view/15017 http://bugguide.net/node/view/23327
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Thank you. It was dead when I found it and I picked it up to get a better picture. That's when the red patch fell off.
Looks like a Bumble Bee, the Nevada Bumble Bee (Bombus nevadensis) seems close to. To be honest I don't see any red marks on this one. However Hunt's Bumble Bee (also found in Montana has some very obvious red on the back:
http://bugguide.net/node/view/15017
http://bugguide.net/node/view/23327