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Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

Comparing Bombus mixtus to Bombus frigidus? Clarification needed?

"Identification
Red tail tip separated by black from pale hairs on T1 and T2 (at least mediobasally) in combination with some admixture of black hairs on the anterior scutum is distinctive. Males have a distinctive patch of dense hairs on basal segments of their flagellum (only visible from certain angles) and this is useful for separating them from frigidus. Also, in mixtus males the red tail tip is separated from yellow basal tergal segments. In mixtus the apicolateral corners of T2 are often black whereas in frigidus all of T3 is yellow."

Above is information copied from the Bombus mixtus information page. Note that it states at end that "frigidus all of T3 is yellow."

I have collected color icons from Xerces and Bumble bees of the Western U.S. Both show B. frigidus' T3 black. I also checked the photos on BugGuide's B.frigidus page and all of those seem to show black on T3. On Discover Life frigidus also black there.

I am confused--perhaps it is only males that have T3 yellow and I am reading that wrong, i.e. should be reading the last line for males only? Is it that there aren't any photos of that color morph?

I looked again and I see that the bumblebee.org icon is only yellow and black--perhaps that color morph occurs in Europe and not in North America?

Thank you!

Edited to:
"In mixtus the apicolateral corners of T2 are often black whereas in frigidus all of T2 is yellow."

Was a typo I suppose ["T3" in place of the correct "T2"]. Thanks for noticing it.

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